CN101750147A - Method and device for measuring color spectrum data of object to be measured - Google Patents

Abstract

The invention discloses a method for measuring color spectrum data of an object to be measured, which comprises the following steps: A, putting the object to be measured and a reference color trellis diagram together, and acquiring an image file comprising original color data of the reference color trellis diagram and the original color data of the object to be measured by an image input device; B, inputting the image file into a computer system, and performing light source homogenization to obtain color data after compensation of the reference color trellis diagram and the color data after compensation of the object to be measured; and C, establishing a lookup table by using the color data after compensation of the reference color trellis diagram and original spectrum data of the reference color trellis diagram, and searching the lookup table by using the color data after compensation of the object to be measured so as to acquire the color spectrum data of the object to be measured. The invention also discloses a device for measuring the color spectrum data of the object to be measured. Through the method and the device, the color spectrum data of the object to be measured can be measured without using an expensive spectrophotometer.

Description

A kind of method and device of measuring object color spectrum data to be measured

Technical field

The present invention relates to the color data field of measuring technique, more particularly, relate to a kind of method and device of measuring object color spectrum data to be measured.

Background technology

At the traditional industry production field, all essential practical spectrophotometer (Spectrophotometer) when needs are accurately measured color or duplicated color, spectrophotometer becomes indispensable color measurements equipment.The spectrophotometer color spectrum data of object surface that can measure with considerable accuracy, thus convert CIEXYZ or CIELAB color to, but regrettably spectrophotometric price is very expensive, and general medium-sized and small enterprises are difficult to purchase to be afforded.

In order to solve the essential spectrophotometric problem of using costliness of color spectrum data of measuring, the help medium-sized and small enterprises reduce cost, press for a kind of method and device of measuring object color spectrum data to be measured, the user only need use digital camera and with reference to color trrellis diagram, just can calculate color spectrum data by computer system processor again.

Summary of the invention

The technical problem to be solved in the present invention is, essentially when needing to measure the color spectrum data of object surface in the prior art or need accurately duplicate color use expensive spectrophotometer, general medium-sized and small enterprises are difficult to afford, therefore, a kind of method and device of measuring object color spectrum data to be measured is provided, need not the spectrophotometer of purchasing price costliness, only need to use general digital camera and with reference to color trrellis diagram, the processing by computer system just can calculate color spectrum data again.

The technical solution adopted for the present invention to solve the technical problems is: construct a kind of method of measuring object color spectrum data to be measured, specifically may further comprise the steps:

A. object to be measured and is put together with reference to color trrellis diagram, obtain the image archives of the original color data of the original color data that comprise the color trrellis diagram of described reference and described object to be measured by the image input media;

B. with described image archives input computer system, handle color data after the compensation of color data and described object to be measured after the compensation that obtains the color trrellis diagram of described reference by the light source homogenising;

C. utilize after the compensation of the color trrellis diagram of described reference the original spectrum data of color data and the color trrellis diagram of described reference to set up a look-up table, utilize the compensation of described object to be measured after color data search the color spectrum data that described look-up table obtains object to be measured.

In method of the present invention, described image input media is digital camera or image scanner.

In method of the present invention, color data was searched the cie color coordinate that described look-up table obtains object to be measured after described step C further comprised the compensation that utilizes described object to be measured.

In method of the present invention, described step B further comprises:

B1. the original color data of the color trrellis diagram of described reference are carried out the light source analyzing and processing, obtain the even compensating parameter of light source;

B2. the original color data and the even compensating parameter of described light source of the original color data of the color trrellis diagram of described reference, described object to be measured are carried out the even compensation deals of light source, obtain color data after the compensation of color data and described object to be measured after the compensation of the color trrellis diagram of described reference.

In method of the present invention, the computing formula of light source analyzing and processing is described in the described step B1:

Wherein D is that F is the even compensating parameter of light source, i=[0..n with reference to color trrellis diagram original color data], wherein, n is with reference to the color lattice amount in the color trrellis diagram.

In method of the present invention, the computing formula of the even compensation deals of light source is described in the described step B2:

S _i＝F _f×D _i

F _f＝F _iv1+(F _iv0-F _iv1)×t

Wherein, i=[0..n]

Wherein, F _Iv0=F ₄+ (F ₀-F ₄) * u

Wherein, F _Iv1=F ₂₄+ (F ₂₀-F ₂₄) * u

Wherein, $t=\frac{D_{\mathrm{iy}}-F_{20y}}{F_{0y}-F_{20y}}$

Wherein, $u=\frac{D_{\mathrm{ix}}-F_{4x}}{F_{0x}-F_{4x}}$

Wherein, x is a horizontal ordinate, and y is a vertical coordinate; S is that light source evenly compensates the back color data,

Wherein, n is with reference to the color lattice amount in the color trrellis diagram.

Construct a kind of device of measuring object color spectrum data to be measured, comprise light source homogenising treating apparatus, build meter apparatus and table look-up device; The original color data that described light source homogenising treating apparatus is used for the original color data of the color trrellis diagram of reference that comprises of image archives that will input and object to be measured are converted to color data after the compensation of color data and described object to be measured after the compensation of the color trrellis diagram of described reference; The described meter apparatus of building utilizes after the compensation of the color trrellis diagram of described reference the original spectrum data of color data and the color trrellis diagram of described reference to set up a look-up table; Color data was searched the color spectrum data that described look-up table obtains object to be measured after described table look-up device utilized the compensation of described object to be measured.

Concrete, described light source homogenising treating apparatus further comprises light source analytical equipment and the even compensation system of light source; Described light source analytical equipment carries out the light source analyzing and processing with the original color data of the color trrellis diagram of described reference, obtains the even compensating parameter of light source; The even compensation system of described light source carries out the even compensation deals of light source with the original color data and the even compensating parameter of described light source of the original color data of the color trrellis diagram of described reference, described object to be measured, obtains color data after the compensation of color data and described object to be measured after the compensation of the color trrellis diagram of described reference.

Concrete, the computing formula of described light source analytical equipment is:

Wherein D is that F is the even compensating parameter of light source, i=[0..n with reference to color trrellis diagram original color data], wherein, n is with reference to the color lattice amount in the color trrellis diagram.

Concrete, the computing formula of the even compensation system of described light source is:

S _i＝F _f×D _i

F _f＝F _iv1+(F _iv0-F _iv1)×t

Wherein, i=[0..n]

Wherein, F _Iv0=F ₄+ (F ₀-F ₄) * u

Wherein, F _Iv1=F ₂₄+ (F ₂₀-F ₂₄) * u

Wherein, $t=\frac{D_{\mathrm{iy}}-F_{20y}}{F_{0y}-F_{20y}}$

Wherein, $u=\frac{D_{\mathrm{ix}}-F_{4x}}{F_{0x}-F_{4x}}$

Wherein, x is a horizontal ordinate, and y is a vertical coordinate; S is that light source evenly compensates the back color data,

Wherein, n is with reference to the color lattice amount in the color trrellis diagram.

The invention has the beneficial effects as follows, the method and the device of measurement provided by the invention object color spectrum data to be measured, need not the spectrophotometer of purchasing price costliness, only need to use general digital camera (or other image input media such as image scanner) and the color trrellis diagram of a reference, the processing by computer system just can calculate color spectrum data again.Though the color spectrum data of measuring does not use Spectrophotometric accurate, accuracy of the present invention can reach spectrophotometric 80%-100% scope.Make medium-sized and small enterprises under generally need not utmost point job requirement accurately, can use method provided by the invention to measure, along with improving constantly of the shooting precision of digital camera, accuracy of measurement of the present invention also can improve constantly.

Description of drawings

The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:

Fig. 1 is the detailed process synoptic diagram that the present invention measures object color spectrum data to be measured;

Fig. 2 is a kind of method flow diagram of measuring object color spectrum data to be measured of one embodiment of the invention;

Fig. 3 is a kind of structure drawing of device of measuring object color spectrum data to be measured of one embodiment of the invention;

Fig. 4 is the image archives synoptic diagram of one embodiment of the present of invention;

Fig. 5 is the light source analyzing and processing schematic diagram of one embodiment of the present of invention;

Fig. 6 is that the image data to reference to color trrellis diagram of one embodiment of the present of invention carries out the even compensation deals schematic diagram of light source;

Fig. 7 be one embodiment of the present of invention according to reference to the original spectrum data of color trrellis diagram with set up the schematic diagram of look-up table with reference to image data after the compensation of color trrellis diagram;

Fig. 8 is that the color data to object to be measured of one embodiment of the present of invention carries out the even compensation deals schematic diagram of light source;

Fig. 9 be one embodiment of the present of invention look into the schematic diagram that look-up table draws the color spectrum data of object to be measured according to color data after the compensation of object to be measured.

Embodiment

As shown in Figure 1 be the detailed process synoptic diagram that the present invention measures object color spectrum data to be measured, at first object 101 to be measured and color trrellis diagram 102 of reference are lain in together or be stacked together, use digital camera 103 or other image input media that object 101 to be measured and the color trrellis diagram 102 of reference are taken together then, the archives of taking of image output as a result 105, with image archives 105 input computer systems, extract respectively with reference to the color data 106 of color trrellis diagram and the color data 107 of object to be measured; In computer system, be provided with a light source analytical equipment 109, be the software systems that light source is analyzed, the effect of light source analytical equipment 109 is to analyze in the captured image of digital camera secretly to distribute with reference to color trrellis diagram color light partly, calculate the uneven distribution situation of light source in the image, set up the even compensating parameter 110 of a light source then, therefore just the color data 106 with reference to color trrellis diagram is input in the light source analytical equipment 109, calculate the even compensating parameter 110 of light source, the effect of the even compensating parameter 110 of light source is that the image for a non-uniform source aggregate provides fill data, makes its colors of image return back to the environment of a uniform light source.In computer system, also be provided with simultaneously an even compensation deals device 111 of light source, the effect of the even compensation deals device 111 of light source is after receiving the image and the even compensating parameter 110 of a light source of a light source non-uniform phenomenon to be repaired, carry out calculation process, produce one through the image data after the even compensation of light source.Therefore just being input to the even compensation deals device 111 of light source with the even compensating parameter 110 of light source with reference to color trrellis diagram color data 106, calculate with reference to the color data 112 after the even compensation of process light source of color trrellis diagram, be provided with the original spectrum data 113 with reference to color trrellis diagram in computer system, it is by spectrophotometer this to be measured its color spectrum data with reference to the color lattice on the color trrellis diagram to draw.According to setting up a look-up table 115 with reference to color trrellis diagram compensation back color data 112 with reference to the original spectrum data 113 of color trrellis diagram, the method (114) of setting up look-up table is: with reference to the color lattice color in the color trrellis diagram (through uniform source of light compensation back) as call number, for example original color is RGB (a RGB passage), RGB is exactly a call number so, and the original spectrum data are exactly content, that is to say that each row in look-up table all can deposit rgb color data and relative original spectrum data in.The effect of look-up table 115 is color conversion to color spectrum datas a digital image.Therefore in the original color data 107 of object to be measured and the even compensation deals device 111 of the even compensating parameter 110 input light sources of light source, calculate one through the even color data 116 after the compensation of the object to be measured after the compensation of light source, at last color data 116 after the compensation of object to be measured is input to the color spectrum data 118 that computation of table lookup in the look-up table 115 goes out object to be measured.Wherein, the disposal route of tabling look-up (117) is: (1) converts all the rgb color data (index data) in the look-up table to coordinate (so-called conversion just is used as three-dimensional coordinate to RGB numerical value and is handled) according to its RGB numerical value, set up a three dimensions, each coordinate points (indexed coordinates) in this three dimensions is deposited relative original spectrum data.(2) data to be looked into (through the RGB data after the uniform source of light compensation), be converted to coordinate (coordinate to be looked into) according to its rgb value, use this to wait to look into coordinate and seek four the most close in three dimensions indexed coordinates, seek four indexed coordinates set up a tetrahedron (its object of Tetrahedron have four jiaos and on four sides).(3) carry out four sides volume interpolation algorithm (Tetrahedron Interpolation (known geometric algorithm)) waiting to look into coordinate and above-mentioned tetrahedron, just can try to achieve the relative volume rate value of waiting to look into coordinate and these four close coordinates, the original spectrum data that write down in these four volume rate values and the 4-coordinate are calculated (operational method also be to use four sides volume interpolation algorithm (Tetrahedron Interpolation (known geometric algorithm))), just can be in the hope of final spectroscopic data.

As shown in Figure 2 be a kind of method flow diagram of measuring object color spectrum data to be measured of one embodiment of the invention, the method for measurement of the present invention object color spectrum data to be measured may further comprise the steps:

In the step 200, object to be measured and the color trrellis diagram of reference are put together.

In the step 205, use digital camera or other image input media (as image scanner) that object to be measured and the color trrellis diagram of reference are taken together, the archives of taking of image output as a result, these image archives comprise with reference to the original color data of color trrellis diagram and the original color data of object to be measured.

In the step 210, the image archives that digital camera is taken are input in the computer system, the original color data of extracting the original color data of the color trrellis diagram of reference in these image archives and the object to be measured line light source homogenising of going forward side by side is handled, wherein the light source homogenising is handled and is comprised light source analyzing and processing and the even compensation deals of light source, draw the even compensating parameter of light source carrying out the light source analyzing and processing with reference to the original color data of color trrellis diagram, draw with reference to color data after the compensation of color trrellis diagram carrying out the even compensation deals of light source with the even compensating parameter of light source again with reference to color trrellis diagram original color data, the original color data of object to be measured and the even compensating parameter of light source are carried out the even compensation deals of light source together, draw one through color data after the compensation of the object to be measured after the even compensation of light source.

In the step 215, according to setting up a look-up table with reference to color data after the compensation of color trrellis diagram with reference to the original spectrum data of color trrellis diagram.

In the step 220, look into look-up table, draw the color spectrum data of object to be measured according to color data after the compensation of object to be measured.

As shown in Figure 3 be a kind of structure drawing of device of measuring object color spectrum data to be measured of one embodiment of the invention, described device comprises light source homogenising treating apparatus 300, table look-up device 303 and build meter apparatus 304; Described light source homogenising treating apparatus 300 further comprises light source analytical equipment 301 and the even compensation system 302 of light source; Described light source analytical equipment 301 is used for that the original color data of the color trrellis diagram of reference that comprises of image archives 30 of input are carried out analyzing and processing and draws the even compensating parameter of light source, the even compensation system 302 of described light source draws with reference to color trrellis diagram compensation back color data according to the original color data computation of even compensating parameter of light source and the color trrellis diagram of reference, simultaneously, the even compensation system 302 of described light source draws color data after the compensation of object to be measured according to the original color data computation of even compensating parameter of light source and object to be measured; The described meter apparatus 304 of building utilizes after the compensation of the color trrellis diagram of described reference the original spectrum data of color data and the color trrellis diagram of described reference to set up a look-up table 31; Color data was searched the color spectrum data that described look-up table 31 obtains object to be measured after described table look-up device 303 utilized the compensation of described object to be measured.

Fig. 4 is the image archives synoptic diagram of one embodiment of the present of invention, and the image archives 400 that expression is taken with digital camera can extract after being input to computer system with reference to the original color data 401 of color trrellis diagram and the original color data 402 of object to be measured.

Fig. 5 is the light source analyzing and processing schematic diagram of one embodiment of the present of invention, with reference in the original color data 500 of color trrellis diagram, D is the equipment color after taking, as RGB (RGB color channel), these original color data 500 with reference to color trrellis diagram are input in the light source analyzing and processing 501 calculate, wherein computing formula is: $F_i=\frac{D_0}{D_i}$

Wherein D is that F is the even compensating parameter of light source, i=[0..n with reference to color trrellis diagram original color data] wherein, n is with reference to the color lattice amount in the color trrellis diagram.

Calculate the even compensating parameter 502 of light source.

Fig. 6 is that the image data to reference to color trrellis diagram of one embodiment of the present of invention carries out the even compensation deals schematic diagram of light source, be input in the even compensation deals 602 of light source the even compensating parameter 600 of light source with reference to the original color data 601 of color trrellis diagram and calculate, computing formula is:

S _i＝F _f×D _i

F _f＝F _iv1+(F _iv0-F _iv1)×t

Wherein, i=[0..n]

Wherein, F _Iv0=F ₄+ (F ₀-F ₄) * u

Wherein, F _Iv1=F ₂₄+ (F ₂₀-F ₂₄) * u

Wherein, $t=\frac{D_{\mathrm{iy}}-{\mathrm{<figure-callout\; id="20y"\; label="F"\; filenames="H2008102413018E0000051.png"\; state="\{\{state\}\}">F</figure-callout>}}_{20y}}{F_{0y}-{\mathrm{<figure-callout\; id="20y"\; label="F"\; filenames="H2008102413018E0000051.png"\; state="\{\{state\}\}">F</figure-callout>}}_{20y}}$

Wherein, $u=\frac{D_{\mathrm{ix}}-F_{4x}}{F_{0x}-F_{4x}}$

Wherein, x is a horizontal ordinate, and y is a vertical coordinate; S is that light source evenly compensates the back color data.

Wherein, n is with reference to the color lattice amount in the color trrellis diagram.

Draw with reference to color data 603 after the compensation of color trrellis diagram through aforementioned calculation.

Fig. 7 be one embodiment of the present of invention set up the schematic diagram of look-up table according to image data with reference to the original spectrum data of color trrellis diagram and after examining the compensation of color trrellis diagram, according to setting up a look-up table 702 through color data 700 after the compensation of the color trrellis diagram of reference after the light source compensation with reference to the original spectrum data 701 of color trrellis diagram.

Fig. 8 is that the color data to object to be measured of one embodiment of the present of invention carries out the even compensation deals schematic diagram of light source, the original color data 801 of even compensating parameter 800 of light source and object to be measured are input in the even compensation deals 802 of light source calculate, computing formula is:

S _i＝F _f×D _i

F _f＝F _iv1+(F _iv0-F _iv1)×t

Wherein, i=[0..n]

Wherein, F _Iv0=F ₄+ (F ₀-F ₄) * u

Wherein, F _Iv1=F ₂₄+ (F ₂₀-F ₂₄) * u

Wherein, $t=\frac{D_{\mathrm{iy}}-{\mathrm{<figure-callout\; id="20y"\; label="F"\; filenames="H2008102413018E0000051.png"\; state="\{\{state\}\}">F</figure-callout>}}_{20y}}{F_{0y}-{\mathrm{<figure-callout\; id="20y"\; label="F"\; filenames="H2008102413018E0000051.png"\; state="\{\{state\}\}">F</figure-callout>}}_{20y}}$

Wherein, $u=\frac{D_{\mathrm{ix}}-F_{4x}}{F_{0x}-F_{4x}}$

Wherein, x is a horizontal ordinate, and y is a vertical coordinate; S is that light source evenly compensates the back color data.

Wherein, n is with reference to the color lattice amount in the color trrellis diagram.

Draw color data 803 after the compensation of object to be measured through aforementioned calculation.

Fig. 9 be one embodiment of the present of invention look into the schematic diagram that look-up table draws the color spectrum data of object to be measured according to color data after the compensation of object to be measured, color data 900 after the compensation of the object to be measured that draws through aforementioned calculation is input in the look-up table 901 tables look-up, draw the color spectrum data 902 of object to be measured.

Should be noted that method of the present invention need not to take under a uniform light source, so what will solve is exactly after taking, the dark problem of the light in the image archives.Therefore when taking, must put together one with reference to color trrellis diagram and object to be measured and take.One light source analysis software is arranged in computer system in addition, and the color trrellis diagram of the reference COLOR COMPOSITION THROUGH DISTRIBUTION situation partly in the image archives that can get according to shooting is analyzed, and calculates the inhomogeneous data of light source in the whole image, tries to achieve the even compensating parameter of its light source.Then the color data of even compensating parameter of light source and image archives is together imported in the even compensation deals software of a light source and calculated, just can draw the color data of the image archives after a uniform source of light compensates.

Another technical matters is how to make the color data of the object to be measured in the image archives can change color spectrum data into, this will description references the effect of color trrellis diagram, with reference to color trrellis diagram is a printing that is printed on a plurality of color lattice, use spectrophotometric Meter that the color lattice on this coloured silk trrellis diagram are measured its color spectrum data earlier, and note.Should the coloured silk trrellis diagram just have a color spectrum data like this, so be called with reference to color trrellis diagram.Therefore after handle color trrellis diagram of reference and object to be measured are put together, the color trrellis diagram of reference after using digital camera to take in the image archives of output partly, after the compensation deals of light source homogenising, its data combine with this spectroscopic data with reference to color trrellis diagram and form a look-up table (LUT).At last the object to be measured original color data partly in the image archives, after the even compensation deals of light source, obtain one through the color data after the uniform source of light compensation, this compensation back color data is input in the look-up table (LUT), just can draw the color spectrum data of object to be measured.In addition, need to prove, above-mentioned color spectrum data is the most original representative data of color representation, because color spectrum data can be tried to achieve various CIE hue coordinates according to the disclosed color coordinate conversion computing method of CIE (the International Commission on Illumination of International Commission on Illumination), therefore measurement object method of the present invention finally can draw various CIE hue coordinates.

The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a method of measuring object color spectrum data to be measured is characterized in that, may further comprise the steps:

A. object to be measured and is put together with reference to color trrellis diagram, obtain the image archives of the original color data of the original color data that comprise the color trrellis diagram of described reference and described object to be measured by the image input media;

B. with described image archives input computer system, handle color data after the compensation of color data and described object to be measured after the compensation that obtains the color trrellis diagram of described reference by the light source homogenising;

C. utilize after the compensation of the color trrellis diagram of described reference the original spectrum data of color data and the color trrellis diagram of described reference to set up a look-up table, utilize the compensation of described object to be measured after color data search the color spectrum data that described look-up table obtains object to be measured.

2. the method for measurement according to claim 1 object color spectrum data to be measured is characterized in that: described image input media is digital camera or image scanner.

3. the method for measurement according to claim 1 object color spectrum data to be measured is characterized in that: color data was searched the cie color coordinate that described look-up table obtains object to be measured after described step C further comprised the compensation that utilizes described object to be measured.

4. the method for measurement according to claim 1 object color spectrum data to be measured is characterized in that described step B further comprises:

B1. the original color data of the color trrellis diagram of described reference are carried out the light source analyzing and processing, obtain the even compensating parameter of light source;

B2. the original color data and the even compensating parameter of described light source of the original color data of the color trrellis diagram of described reference, described object to be measured are carried out the even compensation deals of light source, obtain color data after the compensation of color data and described object to be measured after the compensation of the color trrellis diagram of described reference.

5. the method for measurement according to claim 4 object color spectrum data to be measured, it is characterized in that: the computing formula of light source analyzing and processing is described in the described step B1:

Wherein D is that F is the even compensating parameter of light source, i=[0..n with reference to color trrellis diagram original color data], wherein, n is with reference to the color lattice amount in the color trrellis diagram.

6. the method for measurement according to claim 4 object color spectrum data to be measured, it is characterized in that: the computing formula of the even compensation deals of light source is described in the described step B2:

S _i＝F _f×D _i

F _f＝F _iv1+(F _iv0-F _iv1)×t

Wherein, i=[0..n]

Wherein, F _Iv0=F ₄+ (F ₀-F ₄) * u

Wherein, F _Iv1=F ₂₄+ (F ₂₀-F ₂₄) * u

Wherein, $t=\frac{D_{\mathrm{iy}}-F_{20y}}{F_{0y}-F_{20y}}$

Wherein, $u=\frac{D_{\mathrm{ix}}-F_{4x}}{F_{0x}-F_{4x}}$

Wherein, x is a horizontal ordinate, and y is a vertical coordinate; S is that light source evenly compensates the back color data,

Wherein, n is with reference to the color lattice amount in the color trrellis diagram.

7. a device of measuring object color spectrum data to be measured is characterized in that, comprises light source homogenising treating apparatus, builds meter apparatus and table look-up device; The original color data that described light source homogenising treating apparatus is used for the original color data of the color trrellis diagram of reference that comprises of image archives that will input and object to be measured are converted to color data after the compensation of color data and described object to be measured after the compensation of the color trrellis diagram of described reference; The described meter apparatus of building utilizes after the compensation of the color trrellis diagram of described reference the original spectrum data of color data and the color trrellis diagram of described reference to set up a look-up table; Color data was searched the color spectrum data that described look-up table obtains object to be measured after described table look-up device utilized the compensation of described object to be measured.

8. the device of measurement according to claim 7 object color spectrum data to be measured is characterized in that, described light source homogenising treating apparatus further comprises light source analytical equipment and the even compensation system of light source; Described light source analytical equipment carries out the light source analyzing and processing with the original color data of the color trrellis diagram of described reference, obtains the even compensating parameter of light source; The even compensation system of described light source carries out the even compensation deals of light source with the original color data and the even compensating parameter of described light source of the original color data of the color trrellis diagram of described reference, described object to be measured, obtains color data after the compensation of color data and described object to be measured after the compensation of the color trrellis diagram of described reference.

9. the device of measurement according to claim 8 object color spectrum data to be measured is characterized in that the computing formula of described light source analytical equipment is:

Wherein D is that F is the even compensating parameter of light source, i=[0..n with reference to color trrellis diagram original color data], wherein, n is with reference to the color lattice amount in the color trrellis diagram.

10. the device of measurement according to claim 8 object color spectrum data to be measured is characterized in that, the computing formula of the even compensation system of described light source is:

S _i＝F _f×D _i

F _f＝F _iv1+(F _iv0-F _iv1)×t

Wherein, i=[0..n]

Wherein, F _Iv0=F ₄+ (F ₀-F ₄) * u

Wherein, F _Iv1=F ₂₄+ (F ₂₀-F ₂₄) * u

Wherein, $t=\frac{D_{\mathrm{iy}}-F_{20y}}{F_{0y}-F_{20y}}$

Wherein, $u=\frac{D_{\mathrm{ix}}-F_{4x}}{F_{0x}-F_{4x}}$

Wherein, x is a horizontal ordinate, and y is a vertical coordinate; S is that light source evenly compensates the back color data,

Wherein, n is with reference to the color lattice amount in the color trrellis diagram.

Images