CN101147390B - Color material mixing ratio calculating device, color material selection assisting device, and their methods and programs - Google Patents

Color material mixing ratio calculating device, color material selection assisting device, and their methods and programs Download PDF

Info

Publication number
CN101147390B
CN101147390B CN2006800093298A CN200680009329A CN101147390B CN 101147390 B CN101147390 B CN 101147390B CN 2006800093298 A CN2006800093298 A CN 2006800093298A CN 200680009329 A CN200680009329 A CN 200680009329A CN 101147390 B CN101147390 B CN 101147390B
Authority
CN
China
Prior art keywords
colorant
mentioned
color
particular value
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2006800093298A
Other languages
Chinese (zh)
Other versions
CN101147390A (en
Inventor
户*昌利
谷口真一郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Publication of CN101147390A publication Critical patent/CN101147390A/en
Application granted granted Critical
Publication of CN101147390B publication Critical patent/CN101147390B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/80—Processes for incorporating ingredients

Abstract

In a color material mixing ratio calculating device (100), a target color specific value calculating section (121) computes the a* and b* values of each target color in the L*a*b* color system for three light sources. A hue-angle range computing section (122) computes the range of the hue angle containing the three target colors. A mixing resultant color specific value computing section (124) computes the a* and b* values of the color material mixing results from a temporary mixing ratio and the corresponding spectral reflectance information in a color matching DB (112). A hue-angle range judging section (125) judges whether or not the a* and b* values are within the hue-angle range of each of the target colors. A color difference computing section (126) computes a color difference, and a center-of-gravity range judging section (128) judges whether or not the center of gravity of the triangle defined by the color differences is within a certain range. An output section (160) outputs the color material mixing ratio if the result of the mixing is within the hue-angle range and the coordinates of the center of gravity is within a certain range.

Description

Colorant fit rate calculating apparatus and colorant fit rate calculation method
Technical field
The present invention relates to a kind of colorant fit rate calculating apparatus of computed color technology, colorant of having utilized and select servicing unit and method and program.
In the manufacturing of colorants such as coating, printing ink, present specific color card by order person sometimes, thereby the manufacturing of the coating of acceptance and its same color etc. is entrusted.From the basic coating crowd of tens of or a greater variety of reference colours, select and cooperate/mix colours by colorant manufacturer, make color as far as possible near the coating of color card (aim colour).
As the method for color matching, normally following method: Yi Bian veteran toning operator cooperates basic coating to confirm color slightly, Yi Bian determine selected, the cooperation ratio on employed basis.In addition, also popularized computed color technology (being called CCM), be used to implement the device of this color technology.If use the CCM system, even then the operator of toning lack of experience also can match colors up near color card level to a certain degree, improve operating efficiency, and can reduce the waste that colorant uses.
The color matching method and the device thereof that utilize CCM in patent documentation 1, have been put down in writing.In patent documentation 2, put down in writing the shading process of following colorant: the matching degree between a plurality of color data that the color data that computer is tinted according to the sample that radiance sense is arranged is calculated and the data of reference colours is carried out indexation and is selected; Obtain the printout thing of its sample, through the visual comparison of carrying out the radiance sense between this printout thing and the sample of color.
Though proposed technology, the device of various CCM, and in part toning scene, used, the accuracy of its color matching does not reach veteran toning operator's level.Can enumerate metamerism (metamerism) as one of its reason.
Metamerism (metamer) is meant following phenomenon: under different light sources (for example; Under the fluorescent lamp and under the sunlight) when comparing two colors; Two colors of sensation are homochromy under a side light source, but two colors of sensation are various colors under the opposing party's light source.In the coating color matching of reality, requiring under which light source in these light sources on the basis of the various light sources of supposition all is near the color that can satisfy order person's degree.
There is following problem in addition: be in harmonious proportion printing or be coated with the color that is contained in the coating on the metallic plate according to being printed on color card on the paper sometimes, but seem to equate can not accomplishing on the principle to use to match colors under various light sources sometimes with color card with color card different raw materials (substrate).
Under the situation of matching colors in the difference of considering light source, the difference of raw material etc.; In CCM system in the past, be difficult to carry out high-precision color matching; The toning operator relies on people's experience and the fit rate that intuition is adjusted colorant under the light source more than three kinds, and determines the mix proportion of each colorant.Therefore, be difficult to improve the operating efficiency of color matching.
CCM as in the past is not one of effective reason under above-mentioned situation; Can enumerate following situation: do not confirm the final point of arrival (cooperating and color) or its evaluation method objectively according to toning operator's experience and the operation that intuition is carried out; The final point of arrival, judgment standard also are various according to the operator, are difficult to the process of color matching is replaced with Computer Processing.
Patent documentation 1: japanese kokai publication sho 63-153677 communique
Patent documentation 2: TOHKEMY 2003-34762 communique
Summary of the invention
The problem that invention will solve
CCM system does not in the past take into full account the difference of the observational technique of the color that the difference owing to light source produces in for the toning of the colorant of aim colour.Therefore, owing to there is following problem in light source: employed colorant can't reproduce under the situation of aim colour in toning, has under each light source, carry out visual valuation, the operation of can not effectively mixing colours.
The present invention accomplishes in view of above-mentioned point, and its purpose is to provide a kind of can calculating effectively that aim colour is reproduced as no less than the colorant fit rate of the toning result's who is undertaken by the people degree, particularly to because light source and irreproducible aim colour also effectively colorant fit rate calculating apparatus and method and program.
In addition, the present invention provides a kind of being used for auxiliary be used for that aim colour is reproduced as the colorant of selecting no less than the colorant of the toning result's who is undertaken by the people degree and select servicing unit and method and program.
The scheme that is used to deal with problems
In order to address the above problem; Colorant fit rate calculating apparatus of the present invention is characterised in that; Possess: cooperate colorant spectral reflectance memory cell, its with the relevant information of spectral reflectance for a plurality of colorants of the substrate that becomes object, store accordingly with the fit rate of each colorant; The mating information memory cell, the fit rate of the colorant that uses during its storage cooperates; The aim colour particular value is calculated the unit, its calculate respectively as can set initial point, can be regarded as out in the color specification system of color space of angle, for the color particular value of the aim colour of a plurality of light sources; Hue-angle range computing is calculated the unit, and it calculates the scope of hue angle, and the scope of this hue angle comprises the color particular value that above-mentioned aim colour particular value is calculated the aim colour under each light source of calculating the unit respectively; The unit is calculated in cooperation color particular value as a result; It reads the fit rate of the colorant that above-mentioned mating information memory cell stored; Read a plurality of above-mentioned spectral reflectance information from above-mentioned cooperation colorant spectral reflectance memory cell, calculate the color particular value in the above-mentioned color specification system for the cooperation result of this a plurality of colorants of a plurality of light sources; The hue-angle range computing judging unit, its judge above-mentioned cooperation as a result the color particular value calculate a plurality of cooperation results that calculate the unit the color particular value whether in above-mentioned hue-angle range computing is calculated the scope of the hue angle of calculating the unit; And output unit; Its result of above-mentioned hue-angle range computing judgment unit judges for above-mentioned cooperation as a result the color particular value calculate a plurality of color particular values of calculating the unit respectively under the situation in the scope at above-mentioned hue angle, the fit rate of the above-mentioned colorant that output is corresponding.
In addition; Colorant fit rate calculating apparatus of the present invention is characterised in that; Possess: cooperate colorant spectral reflectance memory cell, its with the relevant information of spectral reflectance for a plurality of colorants of the substrate that becomes object, store accordingly with the fit rate of each colorant; Colorant mating information memory cell, the fit rate of the colorant that uses during its storage cooperates; The aim colour particular value is calculated the unit, its calculate respectively as can set initial point, can be regarded as out in the color specification system of color space of angle, for the color particular value of the aim colour of a plurality of light sources; The unit is calculated in cooperation color particular value as a result; It reads the fit rate of the colorant that above-mentioned mating information memory cell stored; From the above-mentioned spectral reflectance information that above-mentioned cooperation colorant spectral reflectance memory cell is read this colorant, calculate the color particular value in the above-mentioned color specification system for the cooperation result of this a plurality of colorants of a plurality of light sources; Aberration is calculated the unit, and what it calculated that above-mentioned aim colour particular value calculates that the unit calculates to each light source is aberration for the color particular value of the aim colour of a plurality of light sources with the above-mentioned difference between the cooperation result's of a plurality of light sources the color particular value that cooperates that color particular value as a result calculates that the unit calculates; The centre-of-gravity range judging unit, it judges that the value of center or center of gravity that above-mentioned aberration calculates a plurality of aberration formed figure in above-mentioned color specification system of calculating the unit is whether in fixed range; And output unit, its result in above-mentioned centre-of-gravity range judgment unit judges is under the situation in fixed range, the fit rate of the above-mentioned colorant that output is corresponding.
In above-mentioned colorant fit rate calculating apparatus; Preferably also have: aberration is calculated the unit, and what it calculated that above-mentioned aim colour particular value calculates that the unit calculates to each light source is aberration for the color particular value of the aim colour of a plurality of light sources with the above-mentioned difference between the cooperation result's of a plurality of light sources the color particular value that cooperates that color particular value as a result calculates that the unit calculates; And centre-of-gravity range judging unit; It judges that the value of center or center of gravity that above-mentioned aberration calculates a plurality of aberration formed figure in above-mentioned color specification system of calculating the unit is whether in fixed range; Wherein, Above-mentioned output unit the result of above-mentioned hue-angle range computing judgment unit judges for above-mentioned cooperation as a result the color particular value calculate the cooperation result who calculates the unit the color particular value respectively under the situation in the scope at above-mentioned hue angle and in the result of above-mentioned centre-of-gravity range judgment unit judges under the situation in fixed range, the fit rate of the above-mentioned colorant that output is corresponding.
In above-mentioned colorant fit rate calculating apparatus, preferably above-mentioned centre-of-gravity range judging unit carries out weighting on specific direction of principal axis, and whether the value of judging above-mentioned center of gravity is in fixed range.
Thus, can be to the specific direction of principal axis additional coefficient of color specification system, therefore can access the result that direction of principal axis that counterweight looks has carried out weighting.
In above-mentioned colorant fit rate calculating apparatus; Preferably above-mentioned aberration is calculated on the plane of the specific lightness that the unit projects to the color particular value for the cooperation result of above-mentioned a plurality of light sources in the color particular value of the aim colour of a plurality of light sources and the above-mentioned color specification system in the above-mentioned color specification system the above-mentioned color specification system of expression, calculates their aberration.
Thus, obtain the fit rate of colorant on the plane of the specific lightness in the expression color specification system, therefore can only consider the high lightness of importance degree, chroma usually, thereby alleviate the load of processing of calculating of colorant fit rate.
In above-mentioned colorant fit rate calculating apparatus; Preferably above-mentioned aim colour particular value is calculated the unit and is calculated the color particular value for the aim colour of light source more than three kinds; Above-mentioned hue-angle range computing is calculated the unit and is calculated and comprise the scope color particular value, above-mentioned hue angle that above-mentioned aim colour particular value is calculated the aim colour more than three of calculating the unit respectively, and above-mentioned cooperation color particular value is as a result calculated the unit and calculated the color particular value for the cooperation result of above-mentioned a plurality of colorants of light source more than three kinds.
Thus, calculate the color particular value of the aim colour under the light source more than three kinds, every light source is judged the color particular value that cooperates the result, therefore can estimate colorant and cooperate the result, can obtain colorant fit rate with versatility with the light source of a plurality of kinds.
In addition; Colorant fit rate calculation method of the present invention is characterised in that; Calculate respectively as can set initial point, can be regarded as out in the color specification system of color space of angle, for the color particular value of the aim colour of a plurality of light sources; Calculate the scope of hue angle; The scope of this hue angle comprises a plurality of color particular values of above-mentioned aim colour of calculating respectively; According to the fit rate of a plurality of colorants that use in cooperating with for the spectral reflectance information of a plurality of colorants of the substrate that becomes object, calculate the color particular value in the above-mentioned color specification system for the cooperation result of this a plurality of colorants of a plurality of light sources, whether the color particular value of judging the above-mentioned a plurality of cooperation results that calculate is in the scope of above-mentioned hue angle of calculating; Be above-mentioned a plurality of color particular values of calculating respectively under the situation in the scope at above-mentioned hue angle, the fit rate of the above-mentioned colorant that output is corresponding in the result of above-mentioned judgement.
In addition, the program of embodied on computer readable of the present invention makes computer carry out following steps: calculate respectively as can set initial point, can be regarded as out in the color specification system of color space of angle, for the step of the color particular value of the aim colour of a plurality of light sources; Calculate the step of the scope a plurality of color particular values, above-mentioned hue angle that comprises above-mentioned aim colour of calculating respectively; Calculate the step in the above-mentioned color specification system according to the fit rate of a plurality of colorants that use in cooperating with for the spectral reflectance information of a plurality of colorants of the substrate that becomes object for the cooperation result's of this a plurality of colorants of a plurality of light sources color particular value; Whether the color particular value of judging the above-mentioned a plurality of cooperation results that calculate step in the scope of above-mentioned hue angle of calculating; And be above-mentioned a plurality of color particular values of calculating step of the fit rate of the corresponding above-mentioned colorant of output under the situation in the scope at above-mentioned hue angle respectively in the result of above-mentioned judgement.
Then, the present invention provides a kind of colorant to select servicing unit, and it possesses: colorant spectral reflectance memory cell, and it is for a plurality of colorants storages and the relevant colorant spectral reflectance information of spectral reflectance for the colorant of the substrate that becomes object; Aim colour spectral reflectance memory cell, the aim colour spectral reflectance information that its storage is relevant with the spectral reflectance of aim colour; The colorant display part; It is handled each colorant as follows: in the three-dimensional color space of regulation; Use the above-mentioned colorant spectral reflectance information in the colorant in the above-mentioned substrate to obtain the coordinate position of this colorant, carry out in above-mentioned three-dimensional color space handling for the demonstration of the coordinate position of this colorant concentration change with respect to a plurality of concentration of this colorant; And the aim colour display part, it is handled as follows: use above-mentioned aim colour reflectivity information to obtain the coordinate position of the above-mentioned aim colour in the above-mentioned three-dimensional color space, demonstrate the coordinate position of in above-mentioned three-dimensional color space, obtaining.
Thus, the user of device can easy master concentration change and the position of aim colour of a plurality of colorants in the three-dimensional color space of regulation concern.Thereby the user can carry out the selection of more suitable colorant in order to show the color near aim colour.
In addition, the present invention selects also to possess in the servicing unit at above-mentioned colorant: colorant selection portion, and it lets the user select colorant; And selection colorant display part; It carries out the colorant of two colors in above-mentioned colorant selection portion, selecting is being obtained under the state of the colorant that does not dilute these two colors the processing of the coordinate position in above-mentioned three-dimensional color space under the situation of having carried out cooperating with the fit rate of regulation to a plurality of fit rate; In above-mentioned three-dimensional color space, utilize a plurality of coordinate positions obtain to carry out the demonstration of the colour gamut outer rim in the above-mentioned substrate in the colorant of these two colors.
Thus, the user can confirm in the scope that colorant that can enough selections shows, whether have aim colour easily.
In addition; The present invention selects in the servicing unit at above-mentioned colorant; Above-mentioned selection colorant display part carries out obtaining for the colorant of two colors in colorant selection portion, selecting the processing of the coordinate position in the above-mentioned three-dimensional color space under the situation of colorant that fit rate with regulation cooperated above-mentioned two colors that are made as normal concentration to a plurality of concentration, a plurality of fit rate; In above-mentioned three-dimensional color space, utilize a plurality of coordinate positions obtain carry out in the above-mentioned suprabasil colour gamut in the colorant of these two colors by concentration, show by the boost line of fit rate.
Thus, the user can also confirm when the colorant of selecting probably with which kind of ratio of which kind of concentration is cooperated, to become the color near aim colour.
In addition; The present invention selects in the servicing unit at above-mentioned colorant; Above-mentioned selection colorant display part is being selected under the situation of three colorants more than the color by above-mentioned colorant selection portion, and each combination in the combination of the colorant of two colors among selected three colorants more than the color is shown processing.
Thus, can effectively be used to show the processing of the colour gamut outer rim when having selected the above colorant of three colors.
In addition; The present invention selects in the servicing unit at above-mentioned colorant; Above-mentioned selection colorant display part is under the situation of three colorants more than the color having selected to be selected by above-mentioned colorant selection portion; A plurality of fit rate are obtained the processing that becomes the coordinate position in 100% the above-mentioned three-dimensional color space when having confirmed the fit rate of each colorant for the fit rate sum that makes each colorant; In above-mentioned three-dimensional color space, the above-mentioned suprabasil boost line that becomes the inner colour gamut foot of above-mentioned colour gamut outer rim of utilizing a plurality of coordinate positions of obtaining further to carry out in the above colorant of these three colors shows.
Thus, user's colour gamut foot that can easy master can in the substrate of appointment, reproduce and the relation between the aim colour with the colorant of selecting.
In addition, the present invention selects in the servicing unit at above-mentioned colorant, and above-mentioned selection colorant display part carries out in above-mentioned three-dimensional color space the colorant that will be selected by above-mentioned colorant selection portion and the demonstration that does not have selecteed colorant to distinguish.
Thus, which colorant the user can confirm to have selected easily, and the concentration change of the colorant that can confirm easily to select and the relation of the position between the aim colour.
In addition; The present invention selects in the servicing unit at above-mentioned colorant; Also possesses the branch light emission intensity memory cell of having stored for the branch light emission intensity information of a plurality of light sources; Above-mentioned aim colour display part is handled as follows: use above-mentioned aim colour spectral reflectance information, above-mentioned minute light emission intensity information; A plurality of light sources are obtained the coordinate position of the above-mentioned aim colour in the above-mentioned three-dimensional color space; Show the coordinate position under each light source in the above-mentioned three-dimensional color space respectively; Above-mentioned colorant display part is handled each colorant as follows: use above-mentioned colorant reflectivity information, above-mentioned minute light emission intensity information, a plurality of light sources obtained with respect to the coordinate position in the above-mentioned three-dimensional color space of colorant under a plurality of concentration, with the center of gravity of each coordinate position in the same concentration as the coordinate position of this concentration and show in the above-mentioned three-dimensional color space coordinate position for the concentration change of this colorant.
Thus, the user can confirm aim colour and the relation between the colorant under a plurality of light sources, and the few colorant of dispersion that can assist the user to carry out being caused by light source is selected.
In addition; The present invention selects in the servicing unit at above-mentioned colorant, and above-mentioned colorant display part, above-mentioned aim colour display part, above-mentioned selection colorant display part are the { processing of carrying out under the situation of n dimension each different 2 that n * (n-1)/a 2} plane shows in above-mentioned three-dimensional color space.
Thus, can make and the concentration change of colorant, aim colour, colour gamut between the demonstration of relation handle simple.
In addition; The present invention selects in the servicing unit at above-mentioned colorant; Also possess the colorant fit rate and calculate portion, this colorant fit rate portion of calculating uses the colorant spectral reflectance information and the aim colour spectral reflectance information of a plurality of colorants of being selected by above-mentioned colorant selection portion, calculates the fit rate of the colorant of selection.
Thus, can calculate the fit rate of the colorant of selection automatically.
In addition, the present invention provides a kind of colorant to select householder method, wherein, for a plurality of colorants, with to the relevant colorant spectral reflectance information stores of the spectral reflectance of the colorant of the substrate that becomes object to colorant spectral reflectance memory cell; With the aim colour spectral reflectance information stores relevant with the spectral reflectance of aim colour in aim colour spectral reflectance memory cell; Each colorant is handled as follows: in the three-dimensional color space of regulation; Use the above-mentioned colorant spectral reflectance information in the colorant in the above-mentioned substrate to obtain the coordinate position of this colorant, carry out in the above-mentioned three-dimensional color space demonstration of the coordinate position of the concentration change of this colorant is handled with respect to a plurality of concentration of this colorant; Use above-mentioned aim colour reflectivity information to obtain the coordinate position of the above-mentioned aim colour in the above-mentioned three-dimensional color space and show the processing of the coordinate position of obtaining in the three-dimensional color space.
In addition; The present invention provides a kind of program of embodied on computer readable; Make with to the relevant colorant spectral reflectance information of the spectral reflectance of the colorant of the substrate that becomes object to a plurality of colorants store, and the computer of the storage aim colour spectral reflectance information relevant with the spectral reflectance of aim colour; Carry out following the processing: each colorant is handled as follows: in the three-dimensional color space of regulation; Use the above-mentioned colorant reflectivity information in the colorant in the above-mentioned substrate to obtain the coordinate position of this colorant, carry out in above-mentioned three-dimensional color space handling for the demonstration of the coordinate position of the concentration change of this colorant with respect to a plurality of concentration of this colorant; Use above-mentioned aim colour reflectivity information to obtain the coordinate position of the above-mentioned aim colour in the above-mentioned three-dimensional color space and show the coordinate position of obtaining in the above-mentioned three-dimensional color space.
The effect of invention
According to the present invention; Calculate the scope of the hue angle that the color particular value with aim colour comprises respectively; Calculate the cooperation result's of a plurality of colorants color particular value; The color particular value of judging this cooperation result whether in the scope of hue angle, under the situation in scope, the fit rate of the colorant that output is corresponding.Therefore, can effectively calculate because light source and the aim colour that can not reproduce is reproduced as no less than the colorant fit rate of the toning result's who is undertaken by the people degree.
In addition, according to the present invention, the user of device can easy master concentration change and the position of aim colour of a plurality of colorants in the three-dimensional color space of regulation concern.Thereby the user can carry out the selection of more suitable colorant in order to show the color near aim colour.
Description of drawings
Fig. 1 is the structure chart of the colorant fit rate calculating apparatus in an embodiment of the invention.
Fig. 2 is that the colour in this execution mode of explanation matees the figure with the content of DB.
Fig. 3 is the flow chart that the colorant fit rate calculating apparatus in this execution mode of expression is calculated the action of colorant fit rate.
Fig. 4 is a that the colorant that printing ink manufacturing company is held and the aim colour in this execution mode described to obtain *b *The figure on plane.
Fig. 5 is the figure that aim colour and the colorant in this execution mode cooperates result's spectral reflectance curve.
Fig. 6 is not present in the formed leg-of-mutton center of gravity of the aberration in 3 light sources (a) situation in the fixed range and (b) is present in a that each aberration under the situation in the fixed range is described to obtain *b *The figure on plane.
Fig. 7 is that the result that will cooperate colorant to obtain in this execution mode is depicted in a *b *Figure on the plane.
Fig. 8 is the sequential chart that the transmission of the data between the designer's in this execution mode of expression user terminal and the CCM system that comprises the colorant fit rate calculating apparatus that is arranged on printing ink manufacturing company receives.
Fig. 9 is the structure chart that the colorant in an embodiment of the invention is selected servicing unit.
Figure 10 is that the explanation colorant selects the colour in the servicing unit to mate the figure with the content of DB.
Figure 11 is that the explanation colour gamut is calculated the figure with the content of DB.
Figure 12 is the flow chart that the expression colorant is selected the action of servicing unit.
Figure 13 is the flow chart of the action of expression colorant demonstration.
Figure 14 is the flow chart of the action of expression colour gamut outer rim and the demonstration of colour gamut boost line.
Figure 15 is the figure of the demonstration example of expression colorant and aim colour.
Figure 16 is the routine figure of demonstration that the concentration change of selected colorant is distinguished in expression.
Figure 17 is the routine figure of demonstration of the colour gamut outer rim of the selected colorant of expression.
Figure 18 is the figure of the demonstration example of expression CCM result of calculation.
Figure 19 is that expression is used for colour gamut that the boost line of colour gamut foot shows and calculates with one of DB routine figure.
Figure 20 is the flow chart of the action that shows of the boost line of expression colour gamut foot.
Figure 21 is the figure of an example of expression colour gamut boost line demonstration.
Figure 22 is the figure of the example that shows of the boost line of expression colour gamut foot.
Figure 23 is the figure of other example of showing of the boost line of expression colour gamut foot.
Figure 24 be the selected colorant of expression be the boost line that be used for colour gamut foot of four colors when above show cut apart routine figure.
Description of reference numerals
100: colorant fit rate calculating apparatus; 110: memory; 112,112 ': colored coupling is used DB; 113: aim colour spectral reflectance DB; 114: divide light emission intensity DB; 115: isochrome function DB; 121: the aim colour particular value is calculated portion; 122: hue-angle range computing is calculated portion; The 123:CCM calculating part, 124: portion is calculated in cooperation color particular value as a result; 125: the hue-angle range computing judging part; 126: aberration is calculated portion; 128: the centre-of-gravity range judging part; 150: input part; 160: efferent; 200: colorant is selected servicing unit; 221: the colorant display part; 222: the aim colour display part; 223: colorant selection portion; 224: select the colorant display part; The 225:CCM calculating part.
Embodiment
Be the mode that example details embodiment of the present invention with following situation below; Wherein, Said situation be the designer of industrial products according to the color card in the color card book that is printed on the paper, entrust to printing ink manufacturing company to be printed on the printing ink that obtains this color under the situation on the metallic plate.
(embodiment 1)
Fig. 1 is the structure chart of the colorant fit rate calculating apparatus in this execution mode.At this, colorant fit rate calculating apparatus is arranged on from the designer of industrial products has accepted printing ink manufacturing company that printing ink to manufacture entrusts.
The 110th, be used for the memory of interim storing various information.The 112nd, the colour coupling of having preserved the information of in realizing processing of the present invention, utilizing is with DB (Database: database) (cooperate colorant spectral reflectance memory cell).As shown in Figure 2, in colour matees with DB 112,, measure and store the information relevant in advance with the spectral reflectance of a plurality of colorants by each fit rate of colorant for the raw material of each substrate that becomes the object that applies colorant.
The 113rd, storage is by the aim colour spectral reflectance DB of the spectral reflectance of the color card of designer's appointment.At this, color card for example is the sample that on the paper of white, applies colorant, and the color with color card is called aim colour below.The 114th, storage to the expression natural daylight, estimate branch light emission intensity DB with the branch light emission intensity of a plurality of standard sourcess of representative light sources such as fluorescent lamp, conventional fluorescent lamps.The 115th, the isochrome function DB of the isochrome function of the spectral sensitivity that storage representation is corresponding with human eye.
The 120th, utilize each DB to calculate the control part of the colorant fit rate of relative aim colour.The 121st, reference object look spectral reflectance DB 113, branch light emission intensity DB114, isochrome function DB 115 calculate the L of the aim colour under a plurality of light sources *, a *, b *The aim colour particular value of value is calculated portion.At this, L *, a *, b *Value is by L *a *b *The value of representing lightness, form and aspect, chroma during the color specification system apparent color.In addition, L *a *b *Color specification system is that CIE (Commission Internationale De L'Eclairage) was definite color space in 1976.In addition, L *a *b *Color specification system is to make poor (below be called aberration) color space (the impartial color space) corresponding with the equidistance in the space of the color be felt as equal sizes.
The 122nd, at a with aim colour *, b *Value is depicted in L *a *b *A on the color specification system *b *Calculate a in the time of on the plane *b *Coordinate points is with respect to a *The hue-angle range computing of the formed angle of axle (below be called hue angle) scope is calculated portion.
The 123rd, CCM (Computer Color Matching: computer for colouring) calculating part.CCM calculating part 123 is read the spectral reflectance of aim colour from aim colour spectral reflectance DB 113; With reading the DB 112, carry out the allotment of spectral reflectance with the spectral reflectance that cooperates the result of aim colour from the colour coupling for the spectral reflectance specified substrate of designer, each colorant fit rate.And, change the fit rate of colorant and even colorant, repeat this allotment, calculate the fit rate of difference colorant the most after a little while of allotment spectral reflectance the most successful, that be desired value and cooperation result's spectral reflectance.Its result is used in as initial fit rate in other processing.
The 124th, portion is calculated in cooperation color particular value as a result; This cooperation color particular value portion of calculating as a result utilizes above-mentioned initial fit rate; With the spectral reflectance of reading each fit rate of colorant the DB 112, calculate the L that colorant cooperates the result from the colour coupling with reference to branch light emission intensity DB 114 and isochrome function 115 *, a *, b *Value.
The 125th, hue-angle range computing judging part, this hue-angle range computing judging part are calculated a that colorant cooperates the result *, b *Value is at a *b *The hue angle that forms on the plane judges whether in the scope of the formed above-mentioned hue angle of aim colour.
The 126th, aberration is calculated portion, and this aberration is calculated aim colour is calculated by portion by each light source that utilizes a *, b *Value cooperates result's a with colorant *, b *What be worth is poor.
The 128th, centre-of-gravity range judging part, this centre-of-gravity range judging part cooperate result's aberration to be depicted as a aberration being calculated aim colour and the colorant for 3 light sources that portion 126 calculates *b *The coordinate time on plane, whether the coordinate of judging their formed centers or center of gravity is in the fixed range by undertaker's input.
The 150th, the input part that constitutes by keyboard, mouse etc.The 160th, cathode ray tube) etc. by CRT (CathodeRay Tube: the efferent that constitutes.
At this; Thereby above-mentioned colorant fit rate calculating apparatus 100 is equipped with CPU (central arithmetic unit) (not shown), calculates portion 121, hue-angle range computing and calculates portion 122, CCM calculating part 123, cooperates as a result the look particular value to calculate portion 124, hue-angle range computing judging part 125, aberration to calculate each functional programs (not shown) of portion 126 and centre-of-gravity range judging part 128 be loaded into and carry out realization on the memory 110 through realizing above-mentioned aim colour particular value.
In addition, above-mentioned each function also can use specialized hardware to realize.
Then, behind designer substrate information that obtains design object and the color card that becomes aim colour, decide the action of best colorant fit rate with reference to description of drawings according to these.At this, establish by the designer and posted the color card that passes through the color that light source can not reproduce with colorant owing to the difference of the substrate of specified substrate and color card.In addition, in the processing of decision colorant fit rate, utilize three kinds of standard sourcess.
Fig. 3 is the flow chart that expression colorant fit rate calculating apparatus 100 is calculated the action of colorant fit rate.At first, the designer selects desired color from the color card that the designer is had self, and to printing ink manufacturing company this color card of mailing, notice is made as the information of the substrate of design object.In addition, the designer also can not select color from color card, and comes the intended target look with method for distinguishing.The director of printing ink manufacturing company measures its spectral reflectance and from 150 inputs of the input part of colorant fit rate calculating apparatus 100, is saved among the color card spectral reflectance DB 113 when receiving color card.The substrate information of then, input notice.
The CCM calculating part 123 of colorant fit rate calculating apparatus 100 is saved in the memory 110 when accepting substrate information (step S1) from input part 150 temporarily.Afterwards; The aim colour particular value is calculated portion 121 according to the three kinds of branch light emission intensity of the spectral reflectance of the aim colour in the aim colour spectral reflectance DB 113, branch light emission intensity DB 114 and the isochrome function of isochrome function DB 115, calculates the L of three kinds of aim colours by each light source *, a *, b *Value (step S3).
Fig. 4 projects to certain L with the aim colour under three kinds of light sources *The a of value *b *Figure on the plane.As shown in the drawing, by at a *b *Above-mentioned a is represented to project in the position 401,402,403 of departing from the plane *b *Aim colour under three kinds of light sources on the plane.Hue-angle range computing is calculated portion 122 and is calculated respectively and project to a *b *Three kinds of formed hue angles of aim colour on the plane are calculated the scope of their residing hue angles.In the figure, project to a *b *Among three aim colours on the plane, certain aim colour (this figure 402) forms θ 1Hue angle, a side of other aim colour (this figure 401) forms θ 2, all the aim colour under the light source forms the feasible θ of entering of hue angle 1And θ 2Between scope in.Hue-angle range computing is calculated portion 122 with θ 1～θ 2Value range be saved in (step S4) in the memory 110.
Then, colorant fit rate calculating apparatus 100 calls substrate information from memory 110, can be at a of colorant from corresponding with this substrate *b *The colorant that uses in selecting in the chroma scope of reproducing on the plane to cooperate.At this, as shown in Figure 4, as the main light source in a plurality of light sources, or specified light source under a *b *Coordinate roughly can be known the chroma scope of being represented by colorant.In Fig. 4, show as an example as each colorant at the color particular value of the highest chroma point of each light source (411 among the figure, 412 etc.), can utilize the CCM calculating part 123 that calculates reflectivity according to mutual colorant combination and cooperation ratio and cooperation as a result the color particular value calculate the line that portion 124 obtains each the highest chroma point, is connected them with curve.At this, the identical point of figure (quadrangle, triangle, circle) that is configured on the coordinate plane of Fig. 4 representes it is the color particular value under the same light source.
In addition, this illustrates following state: aim colour 403 is positioned at the inboard of the line that connects them at least under the light source of having calculated two color particular values 421,422, can carry out the performance of chroma.On the other hand, mean and calculating under the light source of 431 and 432,411 and 412 color particular value, can not reproduce aim colour 401,402 with the colorant of aluminium substrate.
Preferably through selecting to project to a *b *The a of the aim colour on the plane *b *Coordinate and at a *b *Be distributed in the shortest locational colorant of distance on the plane, carry out the decision (step S5) of colorant.Be stored in the memory 110 with the relevant information of selecting of colorant.At this moment, for example as Fig. 4, projecting to a *b *Under the high situation of the chroma of the aim colour on the plane, detect two kinds of colorants 411,412.On the other hand, the colorant of selection more than three kinds under the low situation of chroma.
Then, the colorant information that detects among substrate information that CCM calculating part 123 is imported from memory 110 reading step S1 and the step S5 and preserve is read and this substrate, spectral reflectance that colorant is corresponding with DB112 from the colour coupling.For example, under the situation of substrate information representation aluminium, colorant information representation colorant A and colorant B, at first read aluminium substrate, colorant A among Fig. 2 and be 100%, colorant B is the spectral reflectance under 0% the fit rate.Then, carry out the spectral reflectance and the allotment of aim colour.Then, then be kept at that colored coupling carries out once more with the fit rate among the DB 112 and the spectral reflectance of aim colour between allotment, whole fit rate of preservation are repeated.Afterwards, aim colour as shown in Figure 5 and colorant cooperate result's spectral reflectance such, with allotment the most successful, promptly be saved in (step S6) in the memory 110 for the fit rate of the most after a little while colorant with the difference of the spectral reflectance of aim colour.At this, the longitudinal axis is spectral reflectance [%], and transverse axis is wavelength [nm].The 501st, the spectral reflectance curve of aim colour, the 502nd, cooperated the result's of colorant A and colorant B in the aluminium substrate spectral reflectance curve.The 511st, the spectral reflectance curve of aluminium itself does not have the color above this curve on principle under the situation of aluminium substrate, therefore can know that from this figure aim colour is the color that can not reproduce yet.In addition, also can the decision of colorant be carried out as the part that CCM calculates.
Then; Cooperate as a result the color particular value to calculate portion 124 and read fit rate from memory 110; Read corresponding spectral reflectance from the colour coupling with DB 112; With reference to its isochrome function, calculate the L that colorant in 3 light sources cooperates the result with three kinds of branch light emission intensity of dividing light emission intensity DB 114 and isochrome function DB115 *, a *, b *Value (step S7).
Afterwards, hue-angle range computing judging part 125 is read the range Theta of hue angle from memory 110 1～θ 2Then, the color of calculating respectively the cooperation of the colorant in 3 light sources result projects to a *b *A in the time of on the plane *, b *Be worth formed hue angle, judge whether it is all projecting to a *b *The range Theta of the formed hue angle of aim colour on the plane 1～θ 2Interior (step S8).The result who judges is not when in the range Theta of hue angle 1～θ 2Under the interior situation, the fit rate of using is changed to its peripheral fit rate (step S9) afterwards, transfer to step S7 and repeat to handle.
In addition, can be through coming the judgement of repetition hue-angle range computing with the ratio of each colorant of fixed proportion change successively, thus carry out the change of the fit rate among the step S9.In addition, the director can also import the change of fit rate.And, the undertaker can also carry out colorant change, append.
On the other hand, the result of judgement is when the range Theta at hue angle 1～θ 2In situation under, each light source that aberration is calculated portion 126 and three kind of light source is calculated accordingly and is projected to a *b *The a of the aim colour on the plane *, b *Value and project to a *b *Colorant on the plane cooperates result's a *, b *Poor (the step S10) of value.At this, will project to a *b *The a of the aim colour on the plane *b *Coordinate be made as (At, Bt), with a of the cooperation result's under the same light source color *b *Coordinate is made as that (Am, (a, calculating formula b) is a=Am-At to the aberration in the time of Bm), b=Bm-Bt.According to this formula, calculate a of aberration respectively by each light source of three kinds of light sources *, b *Value.This computing is equivalent to move the cooperation result's under the same light source a *b *Coordinate makes a that projects under certain light source *b *The a of the aim colour on the plane *b *Coordinate becomes initial point.
The input of the value of the scope of using in the judgement of centre-of-gravity range judging part 128 with position of centre of gravity requires to be presented on the efferent 160.When taking on that the people sees it and during from input part 150 input values, accepted it colorant fit rate calculating apparatus 100 centre-of-gravity range judging part 128 according to aberration calculate portion 126 that calculate, project to a *b *Aim colour under 3 light sources on the plane and the aberration that cooperates the result judge that their formed leg-of-mutton barycentric coodinates are whether in the value scope of input (step S11).In addition, also can preestablish the employed scope of judgement of position of centre of gravity.Illustrate below projecting to a *b *The a of aberration on the plane, in 3 light sources *b *Coordinate is made as (a 1, b 1), (a 2, b 2), (a 3, b 3), with a *Axial scope is made as-α～+ α, with b *Axial scope is made as-β～+ the judgement formula of barycentric coodinates during β.
[formula 1]
| ( a 1 + a 2 + a 3 ) | 3 < &alpha;
[formula 2]
| ( b 1 + b 2 + b 3 ) | 3 < &beta;
Fig. 6 (a) is at a *b *Described the figure of the aberration 601,602,603 in 3 light sources on the plane.The judgement formula of above-mentioned center of gravity is meant and projects to a *b *Whether the center of gravity 604 of aberration on the plane, in 3 light sources is positioned at a *Axial limit is made as-α～+ α, with b *Axial limit is made as-β～+ the rectangle scope of β in.
The result that above-mentioned center of gravity is judged is not satisfying the judgement formula, is being barycentric coodinates not under the situation in above-mentioned rectangular scope, transfers to repeat among the above-mentioned steps S9 to handle.On the other hand, satisfy the judgement formula, promptly shown in Fig. 6 (b) under the situation of the coordinate of such center of gravity 604 in above-mentioned rectangular scope, the fit rate of reading colorant from memory 110, and it is presented at (step S12) on the efferent 160.
Fig. 7 will cooperate the result 701,702,703 of colorant to be depicted in a according to the fit rate that shows among the step S12 *b *Figure on the plane, its result, through demonstration validation be and the approaching result of the color matching of the colorant that is undertaken by the people (colored coupling).
Like this, calculate and project to a *b *On the plane, comprise a of the aim colour in 3 light sources respectively *, b *The scope of hue angle of value is judged the result's that a plurality of colorants cooperate a *b *Whether coordinate is in the scope of hue angle; Under the situation in scope; Therefore the fit rate that shows corresponding colorant can be calculated because light source kind and the aim colour that can not reproduce is reproduced as no less than the colorant fit rate of the colored matching result degree of being undertaken by the people effectively.
In addition, with L *a *b *L in the color specification system *Value is made as constant, at a *b *Obtain the fit rate of colorant in the plane, therefore generally only consider the chroma that importance degree is high, thereby can alleviate the load of processing of calculating of colorant fit rate.
In addition, in the above-described embodiment, used center of gravity, but also can be two kinds, or more than three kinds for three kinds of light sources.Under the situation of two kinds of light sources, calculate a *b *The mid point of two aberration on the plane.Thus, with respect to the situation of three kinds of light sources, can alleviate load of processing.In addition, under the situation of light source more than three kinds, calculate about at a *b *On the plane with the center of gravity of each aberration as the figure on summit.Thus, can under the light source of a plurality of kinds, estimate colorant and cooperate the result, can obtain the colorant fit rate of versatility.
In addition, in the above-described embodiment, explained at L *a *b *In the color specification system at a *b *The worthwhile situation that goes out the fit rate of colorant in plane, but also can consider L respectively *, a *, b *, likewise utilize scope, center or the center of gravity of hue angle, calculate the fit rate of colorant.In addition, handle the difference of the processing that only is 2 peacekeepings, 3 dimensions.
In addition, in the above-described embodiment, also can be on specific direction of principal axis when the scope of barycentric coodinates is judged additional coefficient.Thus, can access the result that direction of principal axis that the designer is paid attention to has carried out weighting.Specifically, through multiply by coefficient on mid point of obtaining or the center of gravity, or on the value of expression scope shown in Figure 6, multiply by coefficient and carry out.
The direction of principal axis that the simple declaration designer payes attention to.For example, the color of the initial imagination of color card and designer may not be consistent, and in addition as stated, the cooperation of the colorant that is difficult to be had through printing ink company obtains and the on all four color of color card.Therefore, in full accord red with itself and color card not as more stressing, or under the situation that can access the colorant cooperation that becomes several candidates, particularly hope preferably green partially.In this case, if for example the designer payes attention to redness, then can be at a *b *On the plane at a *Become and carry out weighting on the positive direction.
In addition, as shown in Figure 6 in the above-described embodiment, in the judgement of the formed center of gravity of aberration of light source, use rectangular extent, but also can use circle or oval scope.
In addition, in the above-described embodiment, colorant fit rate calculating apparatus 100 has been selected the colorant that in cooperation, uses, but also can be with a of aim colour *b *The a of coordinate and colorant *b *Coordinate is presented on the efferent 160, and the director discerns the colorant that it decides use, from the information of input part 150 input expression colorants.
In addition, explained in the above-described embodiment and utilized L *a *b *The situation of color specification system, but the color space that is utilized is not limited to L *a *b *The space also can be the color specification system that Lab color specification system, XYZ color specification system etc. can be regarded as out hue angle.As the example of in the xy chromatic diagram, setting the method for initial point; In the annex map 1 (xy chromatic diagram) that JIS Z8701 annex is put down in writing, enumerate the netrual colour coordinate x=0.4476 under the situation of the light A of the standard of standard body subordinate list 4, the method that y=0.4074 is made as initial point.Can obtain the form and aspect angle thus.
In addition; In the above-described embodiment; By the designer color card is posted to printing ink manufacturing company, notify substrate information to the director of printing ink manufacturing company, but the designer also can be provided with user terminal; And connect this user terminal and comprise the CCM system of colorant fit rate calculating apparatus 100 through network, carry out the exchange of information via network.Fig. 8 is the sequential chart that the transmission of the data between expression designer's user terminal and the CCM system that comprises colorant fit rate calculating apparatus 100 that is arranged on printing ink manufacturing company receives.At first, the designer is according to the spectral reflectance of desired color sample measurement target look, and sends to CCM system (step S71) with the substrate information as design object from user terminal.The colorant fit rate calculating apparatus 100 of CCM system is calculated processing (step S72) according to what the information of sending was carried out colorant fit rate in the above-mentioned execution mode.And, with in the colorant fit rate that its result obtained, spectral reflectance, check colors mutually, aim colour and cooperation result's color is at L *a *b *Depiction in the color specification system, aberration are at L *a *b *Depiction in the color specification system, colorant and mating information thereof send to user terminal (step S73).At this moment, can't reproduce with colorant under the situation of aim colour, the designer discerns from CCM system aim colour that sends and the color that cooperates the result at L *a *b *Depiction in the color specification system, thus can confirm situation.Therefore, the designer can recognize the color selection of colorant.
Afterwards, the designer as required will with L *, a *, b *The relevant indication (for example coefficient value) of each axial weighting be input to user terminal, and send to CCM system (step S74).The CCM system carries out the center of gravity of weighting as indicated and judges when accepting it, and that carries out the colorant fit rate again calculates processing (step S75), and its result and step S73 are likewise sent to user terminal (step S76).And the designer observes the information of sending, if different with desired color, then transfers to step S74 reprocessing once more.Afterwards, be desired color if cooperate result's color, then press " OK " thus button and send to CCM system (step S77), end process.
(embodiment 2)
The colorant selection servicing unit of the embodiment of the invention is described with reference to the accompanying drawings.Fig. 9 is the block diagram that the colorant in this execution mode of expression is selected the structure of servicing unit.In Fig. 9, the part mark prosign to identical with device shown in Figure 1 omits its explanation.The point different with colorant fit rate calculating apparatus shown in Figure 1 be the different point of the structure of the colorant control part 220 of selecting servicing unit 200, colored coupling with the different point of the structure of DB 112 ', also be provided with colour gamut and calculate point with DB 116.The point different with the device of Fig. 1 is described below.In addition, in colorant is selected servicing unit 200, directly or through network etc. be connected with not shown display unit, control part 220 outputs to this display unit with process result etc.
Control part 220 possesses colorant display part 221, aim colour display part 222, colorant selection portion 223, selects colorant display part 224, CCM calculating part (the colorant fit rate is calculated portion) 225, CCM display part 226 as a result.
Colorant display part 221 is calculated the coordinate position of the colorant in the appointed substrate in the three-dimensional color space of regulation.At this moment; Colorant display part 221 is handled as follows: use to be stored in the colorant reflectivity information of colored coupling with the colorant among the DB 112 '; A plurality of concentration to this colorant are obtained the coordinate position in this solid space, on this three-dimensional color space, the variation as coordinate position of the concentration change of this colorant are shown.Each colorant of 221 pairs of registrations of colorant display part carries out above-mentioned processing.In addition, solid space is for example to be XYZ color specification system, L with the color space of the above expression of 3 dimensions color position *a *b *Color specification system, L *u *v *Color specification system etc.In the present embodiment, with the L that can be described as near the image of the colour coupling that becomes this device user *u *v *Color specification system describes as the example in three-dimensional color space.
Aim colour display part 222 is handled as follows: use the aim colour reflectivity information that is stored among the aim colour spectral reflectance DB 113 to calculate L *u *v *The coordinate position of the aim colour in the color specification system, the coordinate position of the aim colour that demonstration is calculated.Colorant selection portion 223 gets into following the processing: impel the user of device to select the more than one colorant that cooperates, obtain being used for confirming the colorant information through the colorant of not shown input unit selection by the user, and store in the memory 110.Select colorant display part 224 to carry out in the substrate of appointment, can reproducing the demonstration processing etc. of the colour gamut of selected colorant.CCM calculating part 225 uses colorant spectral reflectance information and the aim colour spectral reflectance information of the colorant of selecting etc. to calculate the fit rate of the selected colorant in the substrate of appointment.CCM display part 226 as a result uses the fit rate information of the colorant of being calculated by CCM calculating part 225 to come the processing of display result.
At this; Above-mentioned colorant selects servicing unit 200 that CPU (central arithmetic unit) (not shown) is installed, through will realize above-mentioned colorant display part 221, aim colour display part 222, colorant selection portion 223, select colorant display part 224, CCM calculating part 225, CCM as a result each functional programs (not shown) of display part 226 be loaded into that execution realizes in the memory 110.In addition, also can use specialized hardware to realize above-mentioned each function.
Then, explain that colored coupling is with DB 112 '.Figure 10 is that expression is stored in the figure of colored coupling with an example of the colorant spectral reflectance information among the DB 112 '.Spectral reflectance information 304 as shown in the figure, that colored coupling is stored each colorant 302 with DB 112 '.And, about each colorant of the storage of the spectral reflectance in a plurality of dilutions 303.At this, dilution be to coloring material for mixing the fit rate during diluent for the diluent of colorant.Thereby dilution is that the situation of zero " 0 " is represented the situation that extended color not uses.In addition, when substrate not simultaneously the spectral reflectance of material of all kinds change.Therefore, preserved the spectral reflectance of each colorant respectively by each substrate 301.In addition, the dilution of colorant for example possesses the spectral reflectance of 95,90,80,70,50,40,20,0 situation.In addition, though in Figure 10, do not illustrate, also can use the spectral reflectance that further increases each colorant when thickening by the China ink when printing.
Explain that colour gamut calculates with DB 116.Figure 11, Figure 19 are that the expression colour gamut is calculated the figure with the structure example of DB116.When selecting colorant display part 224 to carry out the processing relevant, calculate with DB 116 with reference to colour gamut with the colour gamut of selected colorant.In order to show the boost line that shows colour gamut by reproducible colour gamut outer rim in the substrate of the colorant appointment of selecting and in the colour gamut inside that enough two colorants of ability show, utilize colour gamut shown in Figure 11 to calculate with DB 116.Colour gamut shown in Figure 11 is calculated the mixing condition 312 with the fit rate of two colorants of DB 116 storage representations (colored 1, colored 2) and diluent.In Figure 11,, show the example in 4 stages of 100%, 50%, 25%, 12.5% as the concentration 311 of two colorants.For example, the fit rate of 50% pair of two colorant of concentration is carried out a plurality of stages and is set, and the ratio to the diluent of colorant of making is that the fit rate sum of 50%, two colorant becomes 50%.In the example of Figure 11, cooperation stage of two colorants is made as 5 stages.In addition, can know that the fit rate of two colorants also comprises the situation that do not comprise a colorant, promptly the fit rate of a colorant is zero situation from Figure 11.
Colorant selecting is under the situation more than 3 looks, in order to show the boost line of colour gamut in the colour gamut foot of the inboard of the colour gamut outer rim in becoming specified substrate, calculates with DB 116 with reference to the colour gamut shown in Figure 19.At this, the fit rate mixing condition 321 of each colorant when being set with the colorant of having selected 3 looks.In this colour gamut was calculated with DB 116, the fit rate sum of setting 3 looks for was 100%.Mixing condition about setting is explained in addition.
Use Figure 12 that the action of colorant selection servicing unit 200 is described.At first, colorant selects that servicing unit 200 is accepted the spectral reflectance information of color card, the input of information that the substrate of the color of reproducing this color card is confirmed.Control part 220 in aim colour spectral reflectance DB113, and will be confirmed the information stores (step S21) in memory 110 of substrate with the spectral reflectance information stores of color card of input.In addition, this color card becomes and is used for the aim colour that the substrate in appointment shows with more than one colorant.
Colorant display part 221 with reference to colored coupling with DB 112 ', beam split reflected intensity DB114, L during each that calculate each colorant in the substrate of appointment diluted, under the regulation light source *u *v *The coordinate position of color specification system.Colorant display part 221 carries out following processing: utilize the coordinate position calculate, show that colorant is from 0% coordinate position when diluted, the variation (step S22) of coordinate position when colorant produces concentration change through diluting to 100%.At this, the change list of the coordinate position when carrying out that colorant produced concentration change is shown in L *u *v *Per 2 plane in the color specification system, be u *v *Plane, L *u *Plane, L *v *Demonstration on these 3 planes, plane is handled.
Figure 13 is the flow chart that illustrates in greater detail the processing of colorant display part 221.At first, colorant display part 221 is calculated colorant (i, L j) in the colorant of appointment *u *v *Coordinate position in the color specification system (step S22a).At this, the kind (numbering) of " i " expression colorant, " j " representes the dilution stage (concentration stage) of this colorant.At this, being located at colored coupling has m kind colorant with registration among the DB 112 ', has registered the p stage as dilution stage.In addition, L *u *v *The coordinate position of color specification system is calculated and can be obtained through following processing: according to the spectral reflectance of the colorant in the substrate of appointment, the concentration of colorant, the beam split reflected intensity of regulation light source; Calculate the coordinate position in the XYZ color specification system, utilize the isochrome function to be transformed to L from the coordinate position of XYZ color specification system with DB 115 *u *v *The coordinate position of color specification system.In addition, this processing is the calculation method of color specification system coordinate position known in this field, omits detailed explanation.Thus, obtain colorant (i, j) { i: 0＜=i＜m; The L of j: 0＜=j＜p} *u *v *The coordinate position of color specification system.In addition, below the light source of stipulating being made as inhomogeneous few standard sources is D65.
Then, colorant display part 221 is handled as follows: the u that uses the coordinate position of obtaining *Value, v *Value, the variation of the coordinate position when colorant has been produced concentration change is presented at u *v *On the plane (step S22b).Figure 15 (a) is at u *v *The demonstration example of the variation of the coordinate position when having produced concentration change respectively is shown about 8 colorants on the plane.In (a) of Figure 15, from " A " to " H " expression colorant name.Add that also the colorant name shows when like this, being preferably in demonstration.In addition, both can describe m stage concentration simply, also can describe feasible concentration of replenishing the m stage in addition about the concentration change of each colorant.And, describe as long as change color during demonstration by each colorant.
221 couples of L of colorant display part *u *Plane, L *v *The processing identical with step S22b (step S22c, S22d) also carried out on the plane.(b) of Figure 15, (c) are respectively at L *u *Plane, L *v *The demonstration example of the variation of the coordinate position when having produced concentration change respectively is shown about 8 colorants in the plane.
When the processing of colorant display part 221 finished, 222 references of aim colour display part were stored in the aim colour reflectivity information among the aim colour spectral reflectance DB 113 etc., calculated the L of the aim colour among the standard sources D65 *u *Coordinate position in the v color specification system.In addition, calculating with colorant display part 221 of coordinate position calculated colorant at L *u *The processing of the coordinate position in the v color specification system is identical.In addition, aim colour display part 222 utilizes the coordinate position of the aim colour of calculating, at u *v *Plane, L *u *Plane, L *v *The coordinate position of display-object look (step S23) on the plane.In Figure 15, the coordinate position of the aim colour on each plane of symbolic representation of the rhombus of representing with symbol 321.
Then, colorant selection portion 223 lets the user carry out the selection/change of colorant, will be saved in the information that selected colorant is confirmed (step S24) in the memory 110.In addition, when carrying out the selection of colorant/change, select colorant display part 224 to be used for handling with the demonstration that does not have selecteed colorant to distinguish.For example, the example of the demonstration when having selected three kinds of colorants " A ", " B ", " C " as colorant shown in Figure 16.In the example of Figure 16, the example that concentration change that makes selecteed colorant and the concentration change that does not have selecteed colorant are compared and slightly shown is shown.In addition, be used for being not limited thereto with the demonstration processing that does not have selecteed colorant to distinguish.
When the selection of colorant finishes (step S25), select colorant display part 224 to calculate the colour gamut of the color gamut that reproduces as substrate, standard sources D65, selected colorant that can enough appointments, show the colour gamut (Figure 12, step S26) that calculates.Figure 14, Figure 20 are that expression selects the colour gamut of colorant display part 224 to show the flow chart of handling.The processing (the step S26b of Figure 14) that the outer rim that can the processing that colour gamut shows roughly be divided into colour gamut shows (the step S26a of Figure 14), the concentration when having diluted the colorant in the colour gamut, show guides by fit rate and becoming the processing (the step S26c of Figure 20) that the inner colour gamut foot of colour gamut outer rim shows guides by the fit rate in the colorant that not have to dilute.
Select colorant display part 224 to show (S26a), selecting by colorant selection portion 223 under the situation of two colorants more than the color, select the colorant (S41) of two colors in the selecteed colorant in order to carry out the colour gamut outer rim.Then, calculate with reference to colour gamut and to use DB116, the colorant concentration of calculating two colors being selected by step S41 is the L in 100% o'clock the mixing condition *u *v *The coordinate position of color specification system (step S42).In the example of Figure 11, the mixing condition as two colors in the concentration 100%, the ratio that (colored 1, colored 2) are shown is five stages of (100%, 0%), (75%, 25%), (50%, 50%), (25%, 75%), (0%, 100%).L when therefore, selecting colorant display part 224 to calculate to have cooperated two colorants respectively with above-mentioned ratio *u *The coordinate position of v color specification system.Calculating of coordinate position is to carry out through following processing: according to the fit rate of separately spectral reflectance of the selecteed colorant in the substrate of appointment, two colorants, the beam split reflected intensity of regulation light source; Calculate the coordinate position in the XYZ color specification system, utilize the isochrome function to be transformed to L from the coordinate position of XYZ color specification system with DB 116 *u *The coordinate position of v color specification system.
Select colorant display part 224 to pass through at u *v *Plane, L *u *Plane, L *v *Connect the demonstration of the coordinate position in the blending ratio in five stages obtaining in the plane successively, thereby show the colour gamut outer rim (S43) in two colorants selecting by step S41.The outer rim of colour gamut be shown as connection by step S41 select do not dilute the time the coordinate position of two colorants.In addition, both can straight line connect the coordinate position in each stage, and also can connect into and use the function of regulation to replenish between each coordinate position about the demonstration of outer rim.
Select colorant display part 224 for a plurality of colorants of selecting by colorant selection portion 223, judge whether whole combinations of two colorants have been carried out handling (step S44).Under situation about being through with, get into step S26b to the processing of whole combinations.On the other hand, under the situation that does not have to finish in combination, select colorant display part 224 to turn back to step S41, in other combination of two colorants, carry out the processing shown in step S42, the S43.
Figure 17 be selected under the situation of three colorants " A ", " B ", " C ", at u *v *Plane, L *u *Plane, L *v *The demonstration example of the colour gamut outer rim on the plane.In Figure 17, thin solid line is represented the outer rim by the colour gamut of above-mentioned processes and displays.
Select colorant display part 224 to show (S26b), selecting by colorant selection portion 223 under the situation of two colorants more than the color, select the colorant (S51) of two colors in the selecteed colorant in order to carry out the colour gamut boost line.Then, calculate with reference to colour gamut and to use DB116, the colorant concentration of calculating two colors being selected by step S51 is the L under the mixing condition beyond 100% time *u *v *The coordinate position of color specification system (step S52).In the example of Figure 11, as concentration the mixing condition of two colors of 50%, be the mixing sum of two colorants becomes remaining 50% under 50% the situation in diluted material.Mixing as in this case two colorants, the ratio that shows (colored 1, colored 2) is five stages of (50%, 0%), (37.5%, 12.5%), (25%, 25%), (12.5%, 37.5%), (0%, 50%).L when therefore, selecting colorant display part 224 to calculate to have cooperated two colorants respectively with above-mentioned ratio *u *v *The coordinate position of color specification system.Coordinate position calculate with step S42 in the processing explained identical.224 pairs of concentration of selection colorant display part are that each concentration beyond 100% is carried out this processing.
Select colorant display part 224 at u *v *Plane, L *u *Plane, L *v *In the plane by the concentration in the colour gamut, by fit rate show guides (step S53).Select colorant display part 224 in order to show guides, at u by concentration *v *Plane, L *u *Plane, L *v *The demonstration of the coordinate position of blending ratio through being connected to five stages obtaining under certain concentration in turn in the plane, thus show in two colorants selecting by step S51, by the boost line of the fit rate under this concentration.Each concentration to obtaining among the step S52 is carried out this processing.In mixing condition shown in Figure 11, the concentration beyond 100% is 50%, 25.5%, 12.5% three phases, therefore makes the line of the concentration change that connects two colorants that expression selected by step S51 through three boost lines of this processes and displays.Figure 21 representes colorant A, B at L *u *The example that has shown the boost line of colour gamut on the plane.Symbol 331,332, the boost line shown in 333 are respectively with colorant concentration, promptly the fit rate sum of two colorants except the fit rate of diluted material is made as 50%, 25.5%, 12.5% o'clock the boost line by fit rate.
In addition, select colorant display part 224, utilize the coordinate position of obtaining among step S42, the S52, at u in order to show guides by fit rate *v *Plane, L *u *Plane, L *v *Demonstration under the situation that the fit rate between two colorants that carry out respectively in the plane being selected by step S51 is fixed, the coordinate position when connecting change concentration successively.Thus, can show guides by the concentration under this fit rate.At this, the fit rate between two colorants for example is that the ratio of (colored 1, colored 2) is (75% in the concentration 100% for fixing situation; 25%) (37.5% in the concentration 50%; 12.5%), (18.8%, 6.3%) in the concentration 25%, (9.4%, 3.1%) in the concentration 12.5%.Each fit rate is carried out this processing.In mixing condition shown in Figure 11, the fit rate as colored 1 and colored 2 has 3 pairs 1,2 pair 2,1 pairs 3 three phases.Therefore make colour gamut outer rim and the initial point that shows among the Connection Step S42 through three boost lines of this processes and displays.In colorant A shown in Figure 21, the demonstration example of colour gamut boost line among the B, symbol 341,342, the boost line shown in 343 represent that respectively the fit rate of two colorant A and colorant B is 3 pairs 1,2 pair 2,1 pairs 3 a boost line.
Handle through the demonstration shown in the step S53, show tiltedly netted boost line in the colour gamut of two colorants can in step S51, selecting.This. outer, about the demonstration of boost line, each coordinate position both can connect by straight line, also can connect into and use prescribed function to replenish between the coordinate position.
Select colorant display part 224 for a plurality of colorants of selecting by colorant selection portion 223, judge whether whole combinations of two colorants have been carried out handling (step S54).Under the situation that the processing to whole combinations is through with, select colorant display part 224 to get into the processing that the colour gamut foot shows.On the other hand, under the situation that does not have to finish in combination, select colorant display part 224 to turn back to step S51, in other combination of two colorants, carry out the processing shown in step S52, the S53.
When the processing of step S26b finishes, the processing (the step S26c of Figure 20) of selecting colorant display part 224 beginning colour gamut foots to show.At this, establish by colour gamut selection portion 223 and selected three colorants and describe.Select colorant display part 224 to calculate with DB 116, calculate the L in the mixing condition 321 of colorant of three colors shown in this database respectively with reference to the colour gamut of the boost line that is used to show colour gamut foot shown in Figure 19 *u *v *The coordinate position of color specification system (step S61).Coordinate position calculate with step S42 in the processing explained identical.
Figure 22 representes u *v *The boost line of the colour gamut foot in the plane shows example.Figure 22 is the situation that selecteed three colorants are colorant A, colorant B, colorant C, shows to make colorant A, colorant B, colorant C and colour gamut shown in Figure 19 calculate colour 1, colour 2, colored 3 corresponding situation with DB 116.In this case, the mixing condition of Figure 19 numbering 1 to 13 is equivalent to calculate the situation of the coordinate position of shown in Figure 22 1 to 13 numbering.That is, the mixing condition of Figure 19 numbering 2 to 5 fit rate that is equivalent to calculate colorant B, C is still kept 75 pairs 25 and change the L under the situation of fit rate of colorant A *u *v *The situation of the coordinate position of color specification system.In addition, the mixing condition of Figure 19 numbering 6 to 9 fit rate that is equivalent to calculate colorant B, C is still kept 50 pairs 50 and change the L under the situation of fit rate of colorant A *u *v *The situation of the coordinate position of color specification system.Likewise, the mixing condition of Figure 19 numbering 10 to 13 fit rate that is equivalent to calculate colorant B, C still keeps 25 to 75 and L under the situation of the fit rate of change colorant A *u *v *The situation of the coordinate position of color specification system.
When calculating of the coordinate position of three colorants shown in the mixing condition finished, select colorant display part 224 to utilize the coordinate position of calculating, at u *v *Plane, L *u *Plane, L *v *Carry out boost line demonstration processing on the plane respectively as the colour gamut foot of the situation of not diluting three colorants.Select the fit rate of colorant display part 224 fixing certain colorant A, handle as follows: display change boost line (boost line 351,352,353 in the example of Figure 22) and the fit rate that changes other colorant A the during fit rate of the colorant B of other two colors, C make the processing of the boost line (in the example of Figure 22 boost line 361,362,363) of fit rate fixedly time the between two colorant B, C.In addition,, both can each coordinate position straight line be connected, and also can connect into and use prescribed function to replenish between the coordinate position about the demonstration of boost line.
Colour gamut foot about selecting colorant display part 224 shows, can handle end process through demonstration shown in figure 22, handles but can also carry out demonstration shown in figure 23.That is, in demonstration shown in figure 22 is handled, carried out following processing: the colorant selecting is under the situation of colorant A, colorant B, colorant C, makes each colorant and colour 1, colored 2, colored 2 shown in Figure 19 calculate L accordingly *u *v *The coordinate position of color specification system, thus show guides.Relative therewith, demonstration shown in Figure 23 is handled and is equivalent to except above-mentioned, also handle as follows: make colorant B, colorant C, colorant A and colour 1, colored 2, colored 2 shown in Figure 19 calculate L accordingly *u *v *The coordinate position of color specification system shows guides, and makes colorant C, colorant A, colorant B and colour 1, colored 2, colored 2 shown in Figure 19 calculate L accordingly *u *v *The coordinate position of color specification system shows guides.
The colour gamut foot of above-mentioned selection colorant display part 224 shows that the situation with the colorant of having selected three colors is that example is illustrated.Selecting under four situation more than the color; For example shown in figure 24; Select colorant display part 224 also can select to comprise the colorant of three colors of certain colorant (being colorant A) successively in the example of Figure 24, respectively above-mentioned steps S61, S62 are carried out in the combination of three colorants successively.In the example of Figure 24, to the combination of three groups of colorants (A, B, E), (A, B, C), (A, C H) carry out above-mentioned steps S61, S62.
In addition; As other the processing example of having selected four situation more than the color; Calculate likewise with the colour gamut that 3 looks shown in Figure 19 are used with DB; Also can prepare to represent the table of the mixing condition of q look (q is more than 4), select colorant display part 224 to carry out and above-mentioned steps S61, processing that S62 is identical.In addition, in this case, in the colour gamut that the boost line of the colour gamut foot that the q look is used is calculated usefulness is calculated with DB 116, set mixing condition and make the fit rate sum of q look become 100% all the time.
When the colour gamut of selecting colorant display part 224 shows the indication of the mix proportion calculating that (the step S26 of Figure 12) finishes, control part 220 is accepted the user (step S27), control the feasible step S28 that gets into.Otherwise the control that control part 220 returns step S24 makes the user can carry out the selection/change of colorant.
When indication that the fit rate of accepting the user is calculated; CCM calculating part 225 matees with DB 112 ', target spectral reflectance DB with reference to colored; Use is by colorant spectral reflectance information and aim colour spectral reflectance information in the substrate of the appointment of each colorant of colorant selection portion 223 selections, the processing (step S28) of calculating the fit rate of selected colorant.The fit rate that CCM calculates the selecteed colorant in the specified substrate makes with the spectral reflectance of aim colour approximate.In addition, proposed various CCM methods so far, used existing method to decide the fit rate of selecteed colorant at this.
Then, CCM display part 226 as a result handles as follows: utilize fit rate by 225 decisions of CCM calculating part, calculate and a plurality of light source in aim colour between poor, and show should poor (step S29).That is, CCM as a result display part 226 obtain the L under the light source D65 under the situation that the fit rate calculated with CCM calculating part 225 cooperates, in the appointed substrate for the colorant of selecting by colorant selection portion 223 *u *v *The L of the aim colour among coordinate position of color specification system (L1, u1, v1) and the light source D65 that obtained *u *v *The difference of the coordinate position of color specification system (Lt1, ut1, vt1) (Δ L1, Δ u1, Δ v1)=(Lt1-L1, ut1-u1, vt1-v1).Likewise, CCM as a result display part 226 calculate the L under the standard sources beyond the light source D65 under the situation that the fit rate calculated with CCM calculating part 225 cooperates, in the appointed substrate for the colorant of selecting by colorant selection portion 223 *u *v *The coordinate position of color specification system (Li, ui, vi) with standard sources beyond the light source D65 in the L of aim colour *u *v *(Δ Li, Δ ui, Δ are vi)=(Lti-Li, uti-ui, vti-vi) for the difference of the coordinate position of color specification system (Lti, uti, vti).Then, CCM as a result display part 226 carry out the difference of obtaining is presented at u *v *Plane, L *u *Plane, L *v *Processing on the plane.
Figure 18 is at u *v *Plane, L *u *Plane, L *v *The example that shows the difference of being obtained on the plane.In Figure 18, use three kinds as light source, using identical mark to represent the difference under each light source by each light source on each plane.In addition, in the example of Figure 18, the example that has carried out connecting with line respectively the demonstration processing of three difference values under the light source is shown.In addition, though in Figure 18, do not illustrate, in each plane, can also further show the center of gravity of the difference under a plurality of light sources.By CCM as a result display part 226 result displayed be expressed as follows situation: usually, the difference value in each light source is more less, above-mentioned center of gravity is more near initial point, just can access good more result.
After CCM result showed, under the situation of selection/change of being carried out colorant by the user, control part 220 returned the control of step S24, otherwise end process.It more than is the processing that colorant is selected servicing unit 200.
In addition, in the present embodiment, the step S22 among Figure 12, S23, S24 are illustrated as the processing under the standard sources, but are not limited to D65 as light source, can also carry out the processing under another light source.And, also can under a plurality of standard sourcess, carry out the processing of step S22, S23, S24.
In this case, the processing of the step S22 of colorant display part 221 for example becomes as follows.The colorant reflectivity information of each colorant in the substrate of colorant display part 221 use appointments, the beam split reflected intensity information of each light source etc. are obtained the L in a plurality of concentration of certain colorant A a plurality of light sources *u *v *The coordinate position of color specification system.And 221 couples of colorant A of colorant display part obtain the representative coordinates position in each concentration, make the center of gravity of the coordinate position under each light source among certain the concentration α representative coordinates position as this concentration α.Colorant display part 221 utilizes the representative coordinates position of obtaining, and carries out for L *u *v *The demonstration of the variation of the representative coordinates position of the concentration change of the colorant A in the color specification system.Colorant display part 221 also carries out identical processing to other colorant.
The processing of the step S23 of aim colour display part 222 is for example following.Aim colour display part 222 uses the beam split reflected intensity information of aim colour reflectivity information, each light source, and a plurality of light sources are obtained L *u *v *The coordinate position of the aim colour in the color specification system.Aim colour display part 222 is at L *u *v *Show the coordinate position in each light source on the color specification system respectively.In addition, show, preferably use different marks to come the displaing coordinate position to make it possible to confirm light source by each light source about coordinate position.
About the processing of the step S27 that selects colorant display part 224, for example with the processing of colorant display part 221 likewise, utilize the representative coordinates position to carry out.
In addition, in the present embodiment, colorant display part 221, aim colour display part 222 have been described, select colorant display part 224, CCM as a result display part 226 at L *u *v *Under the situation of color specification system, be divided into u *v *Plane, L *u *Plane, L *v *The plane shows.At this, be when under the situation of n dimension (n＞=3) different per 2 planes being shown in the three-dimensional color space, the quantity on plane is { n * (n-1)/2} face.Also can carry out processing, also can carry out the only processing of displaing coordinate position on representational plane these displaing coordinate positions, whole plane.In addition, be not limited to this, also can carry out three-dimensional 3D and show.
In addition, in the present embodiment, explained and selected colorant display part 224 to carry out the demonstration that the concentration change of the colorant of selecting in the colorant selection portion 223 and the concentration change that does not have selecteed colorant are distinguished.Through the demonstration of implementing to distinguish like this, know easily which colorant the user has selected, but do not need necessarily to carry out this processing.
In addition, in the present embodiment, select colorant display part 224 preferably to make the color or the display format of boost line of the colour gamut shown in the step S26b different with the color or the display format of the boost line of the colour gamut foot shown in the step S26c.Thus, the relation of the position between the boost line of the boost line of user's easy master aim colour and colour gamut or colour gamut foot.
In addition, select colorant display part 224 also can carry out with the relation of colorant and aim colour and then and the colour gamut of the colorant selected between the relation axle, the for example L that confirm *The rotation that is rotated around the axle shows to be handled.That is the L that, selects colorant display part 224 in this processing, to calculate *u *v *Coordinate position in the color specification system stores in the memory 110, and memory by using the demonstration rule of line demonstration etc. of the coordinate position of calculating, use known Display Technique to carry out showing as the rotation at center and handle with specific axle.Thus, the user discerns the relation between the colour gamut of relation and then aim colour and selecteed colorant between colorant and the aim colour easily.As a result of, the user carries out the selection of colorant easily, and whether can confirm easily can enough selections colorant reproduce aim colour.
In addition, in the present embodiment, explained and selected colorant display part 224 according to coming to obtain respectively L like Figure 11, mixing condition shown in Figure 19 *u *v *Coordinate position in the color specification system (the step S42 of Figure 14, S52; The step S61 of Figure 20).But, being not limited to this, also can precalculated coordinate position be stored as table, utilize this to show to show the boost line of colour gamut outer rim, colour gamut.
Likewise, explained that 221 pairs of each colorants of colorant display part obtain the L of each concentration respectively *u *v *The coordinate position of color specification system (the step S22a of Figure 13).But, being not limited to this, also can precalculated coordinate position be stored as table, utilize this table to show the concentration change of each colorant.
In addition, in the present embodiment, use the example of DB112 ' and show Figure 10 as the colour coupling, but be not limited to this, for example can also have both information shown in Figure 2.In this case, can use the calculating of more accurate spectral reflectance to the fit rate between colorant.
In addition, it can be independent type that colorant is selected servicing unit 200, also can be the device that can be operated by the terminal through network.
In addition, colorant selects servicing unit 200 need not possess the repertoire of explaining in this execution mode, also can possess part of functions wherein.
In addition; Also can realize that the control part functional programs of Fig. 1 or Fig. 9 is recorded in the recording medium of embodied on computer readable with being used for; Through computer system being read in be recorded in the program in this recording medium and carry out, thereby carry out that the colorant fit rate is calculated, colorant is selected auxiliary.In addition, establish said " computer system " here and comprise hardware such as OS, ancillary equipment.In addition, establishing " computer system " also includes and possesses the WWW system that homepage provides environment (perhaps display environment).In addition, " recording medium of embodied on computer readable " is meant removable mediums such as floppy disk, magneto optical disk, ROM, CD-ROM, is built in the storage devices such as hard disk in the computer system.And; Sent the volatile memory (RAM) of inside computer system of server under the situation of program, client if " recording medium of embodied on computer readable " also comprises as becoming through communication lines such as networks such as internet, telephone lines, kept the device of set time program.
In addition, also can the computer system of said procedure from this program is saved in storage device etc. be sent to other computer system through the transmission ripple in transmission medium or the transmission medium.At this, " transmission medium " of convey program is meant the medium that as communication lines (order wire) such as networks such as internet (communication network), telephone line, has the function of transmission information.In addition, said procedure also can be the program that is used to realize the part of above-mentioned functions.And, also can be can with and above-mentioned functions has been recorded in combination between the program in the computer system realizes, so-called differential file (difference program).
More than, with reference to detailed description of the drawings embodiment of the present invention, but concrete structure is not limited to present embodiment, also comprises the design etc. of the scope of the main idea that does not exceed this invention.
In addition, when being used to deal with problems, the characteristic shown in this execution mode is not necessary to all.

Claims (7)

1. colorant fit rate calculating apparatus is characterized in that possessing:
Cooperate colorant spectral reflectance memory cell, its with the relevant information of spectral reflectance for a plurality of colorants of the substrate that becomes object, store accordingly with the fit rate of each colorant;
The mating information memory cell, the fit rate of the colorant that uses during its storage cooperates;
The aim colour particular value is calculated the unit, its calculate respectively as can set initial point, can calculate in the color specification system of color space of angle, for the color particular value of the aim colour of a plurality of light sources;
Hue-angle range computing is calculated the unit, and it calculates the scope of hue angle, and the scope of this hue angle comprises the color particular value that above-mentioned aim colour particular value is calculated the aim colour under each light source of calculating the unit respectively;
The unit is calculated in cooperation color particular value as a result; It surpasses under the situation of the chroma that can under any light source in above-mentioned a plurality of light sources, reproduce at above-mentioned aim colour; The selection of a plurality of colorants that comprises the processing of at least two kinds of colorants of selection is handled; Read the fit rate of the colorant that above-mentioned mating information memory cell stored; From the information that above-mentioned cooperation colorant spectral reflectance memory cell is read a plurality of above-mentioned spectral reflectances, calculate the color particular value in the above-mentioned color specification system for the cooperation result of a plurality of colorants of this selection of a plurality of light sources;
The hue-angle range computing judging unit, its judge above-mentioned cooperation as a result the color particular value calculate a plurality of cooperation results that calculate the unit the color particular value whether in above-mentioned hue-angle range computing is calculated the scope of the hue angle of calculating the unit; And
Output unit, its result of above-mentioned hue-angle range computing judgment unit judges for above-mentioned cooperation as a result the color particular value calculate a plurality of color particular values of calculating the unit respectively under the situation in the scope at above-mentioned hue angle, the fit rate of the above-mentioned colorant that output is corresponding.
2. colorant fit rate calculating apparatus according to claim 1 is characterized in that also having:
Aberration is calculated the unit, and what it calculated that above-mentioned aim colour particular value calculates that the unit calculates to each light source is aberration for the color particular value of the aim colour of a plurality of light sources with the above-mentioned difference between the cooperation result's of a plurality of light sources the color particular value that cooperates that color particular value as a result calculates that the unit calculates; And
The centre-of-gravity range judging unit, it judges the value of center or center of gravity that above-mentioned aberration calculates a plurality of aberration formed figure in above-mentioned color specification system of calculating the unit whether in fixed range,
Above-mentioned output unit the result of above-mentioned hue-angle range computing judgment unit judges for above-mentioned cooperation as a result the color particular value calculate the cooperation result who calculates the unit the color particular value respectively under the situation in the scope at above-mentioned hue angle and in the result of above-mentioned centre-of-gravity range judgment unit judges under the situation in fixed range, the fit rate of the above-mentioned colorant that output is corresponding.
3. colorant fit rate calculating apparatus according to claim 1 and 2 is characterized in that,
Above-mentioned aim colour particular value is calculated the unit and is calculated the color particular value for the aim colour of light source more than three kinds,
Above-mentioned hue-angle range computing is calculated the unit and is calculated and comprise the scope of hue angle that above-mentioned aim colour particular value is calculated the color particular value of the aim colour more than three of calculating the unit respectively,
Above-mentioned cooperation color particular value is as a result calculated the unit and is calculated the color particular value for the cooperation result of above-mentioned a plurality of colorants of light source more than three kinds.
4. colorant fit rate calculating apparatus is characterized in that possessing:
Cooperate colorant spectral reflectance memory cell, its with the relevant information of spectral reflectance for a plurality of colorants of the substrate that becomes object, store accordingly with the fit rate of each colorant;
The mating information memory cell, the fit rate of the colorant that uses during its storage cooperates;
The aim colour particular value is calculated the unit, its calculate respectively as can set initial point, can calculate in the color specification system of color space of angle, for the color particular value of the aim colour of a plurality of light sources;
The unit is calculated in cooperation color particular value as a result; It surpasses under the situation of the chroma that can under any light source in above-mentioned a plurality of light sources, reproduce at above-mentioned aim colour; The selection of a plurality of colorants that comprises the processing of at least two kinds of colorants of selection is handled; Read the fit rate of the colorant that above-mentioned mating information memory cell stored; From the information that above-mentioned cooperation colorant spectral reflectance memory cell is read a plurality of above-mentioned spectral reflectances, calculate the color particular value in the above-mentioned color specification system for the cooperation result of a plurality of colorants of this selection of a plurality of light sources;
Aberration is calculated the unit, and what it calculated that above-mentioned aim colour particular value calculates that the unit calculates to each light source is aberration for the color particular value of the aim colour of a plurality of light sources with the above-mentioned difference between the cooperation result's of a plurality of light sources the color particular value that cooperates that color particular value as a result calculates that the unit calculates;
The centre-of-gravity range judging unit, it judges that the value of center or center of gravity that above-mentioned aberration calculates a plurality of aberration formed figure in above-mentioned color specification system of calculating the unit is whether in fixed range; And
Output unit, its result in above-mentioned centre-of-gravity range judgment unit judges is under the situation in fixed range, the fit rate of the above-mentioned colorant that output is corresponding.
5. according to claim 2 or 4 described colorant fit rate calculating apparatus, it is characterized in that,
Above-mentioned centre-of-gravity range judging unit carries out weighting on specific direction of principal axis, whether the value of judging above-mentioned center of gravity is in fixed range.
6. according to claim 2 or 4 described colorant fit rate calculating apparatus, it is characterized in that,
Above-mentioned aberration is calculated on the plane of the specific lightness that the unit projects to the color particular value for the cooperation result of above-mentioned a plurality of light sources in the color particular value of the aim colour of a plurality of light sources and the above-mentioned color specification system in the above-mentioned color specification system the above-mentioned color specification system of expression, calculates their aberration.
7. a colorant fit rate calculation method is characterized in that,
Calculate respectively as can set initial point, can calculate in the color specification system of color space of angle, for the color particular value of the aim colour of a plurality of light sources,
Calculate the scope of hue angle, the scope of this hue angle comprises a plurality of color particular values of above-mentioned aim colour of calculating respectively,
Surpass at above-mentioned aim colour under the situation of the chroma that can under any light source in above-mentioned a plurality of light sources, reproduce; The selection of a plurality of colorants that comprises the processing of at least two kinds of colorants of selection is handled; According to the fit rate of a plurality of colorants that use in cooperating with for the spectral reflectance information of a plurality of colorants of the substrate that becomes object; Calculate the color particular value in the above-mentioned color specification system for the cooperation result of a plurality of colorants of this selection of a plurality of light sources
The color particular value of judging the above-mentioned a plurality of cooperation results that calculate whether in the scope of above-mentioned hue angle of calculating,
Be above-mentioned a plurality of color particular values of calculating respectively under the situation in the scope at above-mentioned hue angle, the fit rate of the above-mentioned colorant that output is corresponding in the result of above-mentioned judgement.
CN2006800093298A 2005-03-24 2006-03-24 Color material mixing ratio calculating device, color material selection assisting device, and their methods and programs Expired - Fee Related CN101147390B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP085898/2005 2005-03-24
JP2005085898 2005-03-24
PCT/JP2006/305945 WO2006101193A1 (en) 2005-03-24 2006-03-24 Color material mixing ratio calculating device, color material selection assisting device, and their methods and programs

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN201110281399.1A Division CN102355544B (en) 2005-03-24 2006-03-24 Color material selection assisting device and color material selection assisting method

Publications (2)

Publication Number Publication Date
CN101147390A CN101147390A (en) 2008-03-19
CN101147390B true CN101147390B (en) 2012-11-21

Family

ID=37023846

Family Applications (2)

Application Number Title Priority Date Filing Date
CN2006800093298A Expired - Fee Related CN101147390B (en) 2005-03-24 2006-03-24 Color material mixing ratio calculating device, color material selection assisting device, and their methods and programs
CN201110281399.1A Expired - Fee Related CN102355544B (en) 2005-03-24 2006-03-24 Color material selection assisting device and color material selection assisting method

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201110281399.1A Expired - Fee Related CN102355544B (en) 2005-03-24 2006-03-24 Color material selection assisting device and color material selection assisting method

Country Status (3)

Country Link
JP (1) JP4524701B2 (en)
CN (2) CN101147390B (en)
WO (1) WO2006101193A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5182044B2 (en) 2007-12-21 2013-04-10 セイコーエプソン株式会社 Print control apparatus, print system, and print control program
US8199367B2 (en) 2007-12-21 2012-06-12 Seiko Epson Corporation Printing control device, printing system and printing control program
JP5846534B1 (en) * 2015-06-05 2016-01-20 株式会社ウエノコーポレーション Toning device and toning method for repair paint
CN107403042B (en) * 2017-07-21 2020-10-30 广东溢达纺织有限公司 Cloth wiring method, cloth wiring device, readable storage medium and computer equipment
JP6487515B1 (en) * 2017-10-13 2019-03-20 大日精化工業株式会社 Molded product set, computer color matching system, database, and molded product set manufacturing method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002301807A (en) * 2001-04-05 2002-10-15 Mitsubishi Heavy Ind Ltd Picture color tone control method and device for printing machine
CN1458626A (en) * 2002-05-17 2003-11-26 大日本油墨化学工业株式会社 Colur assigning server and colour assigning method and colour ordering system and its method
JP2004064545A (en) * 2002-07-30 2004-02-26 Canon Inc Information processing apparatus, system, method, and storage medium

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3203942B2 (en) * 1994-03-29 2001-09-04 東洋インキ製造株式会社 Color material conversion method
JP3287177B2 (en) * 1995-05-17 2002-05-27 東洋インキ製造株式会社 Color imaging method and apparatus
US6650446B1 (en) * 1999-06-29 2003-11-18 Kodak Polychrome Graphics Colorimetric characterization of scanned media using spectral scanner and media models
JP4250863B2 (en) * 2000-11-08 2009-04-08 ソニー株式会社 Color correction processing method and apparatus
JP2002247397A (en) * 2001-02-16 2002-08-30 Fuji Photo Film Co Ltd Method of reproducing color, digital color hard copying device using it, and program for executing it
JP2002365133A (en) * 2001-06-06 2002-12-18 Toppan Printing Co Ltd Method and device for calculating color gamut of coloring material, method and device for determining color regeneration, and method and device for calculating blending ratio of coloring material
JP4085232B2 (en) * 2001-06-19 2008-05-14 富士ゼロックス株式会社 Color gamut calculation apparatus, color gamut calculation method, and storage medium
US7053910B2 (en) * 2001-07-30 2006-05-30 Canon Kabushiki Kaisha Reducing metamerism in color management systems
JP2003110867A (en) * 2001-09-28 2003-04-11 Brother Ind Ltd Color conversion device and method therefor
JP2005094353A (en) * 2003-09-17 2005-04-07 Dainichiseika Color & Chem Mfg Co Ltd Ccm calculation system, ccm calculating method, program, and recording medium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002301807A (en) * 2001-04-05 2002-10-15 Mitsubishi Heavy Ind Ltd Picture color tone control method and device for printing machine
CN1458626A (en) * 2002-05-17 2003-11-26 大日本油墨化学工业株式会社 Colur assigning server and colour assigning method and colour ordering system and its method
JP2004064545A (en) * 2002-07-30 2004-02-26 Canon Inc Information processing apparatus, system, method, and storage medium

Also Published As

Publication number Publication date
WO2006101193A1 (en) 2006-09-28
CN102355544A (en) 2012-02-15
JPWO2006101193A1 (en) 2008-09-04
JP4524701B2 (en) 2010-08-18
CN101147390A (en) 2008-03-19
CN102355544B (en) 2014-12-03

Similar Documents

Publication Publication Date Title
US7136074B2 (en) Method and system of improved color selection
EP3481041A1 (en) Color conversion system, color conversion device, and color conversion method
EP1695293B1 (en) Computer-implemented method for matching paint
CN101147390B (en) Color material mixing ratio calculating device, color material selection assisting device, and their methods and programs
NZ247247A (en) Image digitiser calculates colour chart values for display
JPH09508768A (en) Method and apparatus for converting color scanner signals into colorimetric values
EP1347633A2 (en) Image processing apparatus and method of generating color mapping parameters
US5596425A (en) Method and apparatus for simulating color print
JP2016225940A (en) Color estimation system, plate-making data creation system, color estimation method and plate-making data creation method
US7187797B2 (en) Color machine vision system for colorimetry
JP4800380B2 (en) Colorimetric value prediction method for subtractive color mixture
JP4636071B2 (en) Color material selection assisting device, method and program
JP4505213B2 (en) Method for identifying paint color from computer graphics images
JP2004166045A (en) Device and method for designing display primary color
JP3130589B2 (en) Color arrangement support method and apparatus
US8456701B2 (en) Reference color difference quantity guide for spot color applications
US6892105B2 (en) Method of producing a wood finish at a location remote from where the wood finish is designed
US20020154136A1 (en) Apparatus and method for calculating color temperature
CN100468416C (en) Generation of changeable colour and displaying method and apparatus thereof
JP3836120B1 (en) Computer color matching method, color matching apparatus and program
US20220366581A1 (en) Generation of a Formulation for a Coating Which Matches the Optical Properties of a Target Coating Comprising Effect Pigments
JP2023117585A (en) Method and device for generating profile
JP2003034762A (en) Method for toning of coating having lustrous shining
JPH0816784A (en) Color information comparing and managing device
JPH0526730A (en) Color difference measurement display device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121121

Termination date: 20170324