CN101247464A - Apparatus and method for processing an image - Google Patents
Apparatus and method for processing an image Download PDFInfo
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- CN101247464A CN101247464A CNA2008100881403A CN200810088140A CN101247464A CN 101247464 A CN101247464 A CN 101247464A CN A2008100881403 A CNA2008100881403 A CN A2008100881403A CN 200810088140 A CN200810088140 A CN 200810088140A CN 101247464 A CN101247464 A CN 101247464A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
- G03G15/5025—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the original characteristics, e.g. contrast, density
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- 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
- H04N1/40—Picture signal circuits
- H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1603—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for multicoloured copies
Abstract
An image forming apparatus and method outputs an image in a pure monochromatic color as opposed to forming the monochromatic color from a combination of colors. The image forming apparatus includes a controller to receive image data represented by a combination of red, green and blue data, among others, to determine whether the received image data are image data corresponding to a monochromatic color, such as black, a converter to convert the image data into cyan, magenta, yellow, and black data, among other color schemes, when the image data are image data corresponding to the monochromatic color, a halftoning processor to compare color information items of the converted cyan, magenta, yellow, and black data with color information items in previously established halftone tables to output and store resultant values of cyan, magenta, yellow, and black, and an extractor to extract a resultant value of black, when the monochromatic color is black, from among the stored resultant values of cyan, magenta, yellow, and black.
Description
Technical field
This total inventive concept is usually directed to a kind of image processing system and method thereof of exporting monochrome image, and relate more specifically to a kind of image processing system and method thereof, when it is the monochrome image form when the view data that receives, opposite with the color combinations of utilizing the multicolor image form, with single color output image.
Background technology
Usually, as the color printer of ink-jet printer according to from as the view data of the main frame transmission of personal computer (PC), with color print image on printable media, with the coloured image of output print.
View data is typically generated by main frame.When the view data that generates was sent to printer with printer language, the printer basis was come presentation video by the view data of the combination of four kinds of print colors that comprise cyan (C), magenta (M), yellow (Y) and black (K).
When the compressing image data as the chromatic grating picture (graphic) of photo was imported into conventional printer, raw image data was to be represented by the combination of red (R), green (G) and blueness (B).
Then, the view data of being represented by the combination of R, G and B is converted into R ', G ' and the B ' that will be suitable for the data format of color printer, and R ', G ' and the B ' data of conversion then are converted into the view data of being made up of cyan, magenta, yellow and black, with the output coloured image.
Change the color image data that the raw image data of being represented by the combination of R, G and B is represented color by secondary, can produce the image of desired color by above-mentioned conversion.Yet monochrome image (as black and white image or gray level image) is provided to image processing system as the combination of the identical rgb value that uses in coloured image, and does not provide as the data of single color itself.Therefore, in conventional art, monochromatic image data in image as the combination of cyan, magenta, yellow and black and export.Therefore, need to offer image forming apparatus as each color combinations, also export monochrome image even have realized that with single color corresponding to the monochrome image form when view data.
Summary of the invention
This total inventive concept provides a kind of image processing system and its corresponding method, even when view data itself provides as a plurality of color combinations, also utilizes the single color output monochrome image of image processing system.
The others of this total inventive concept and application are set forth part in the following description, and part will from explanation obviously maybe can be learnt by the practice of this total inventive concept.
Aforementioned and/or the others of this total inventive concept and application realize by a kind of method that is used for the color of output image formation device is provided.This method comprises: determine whether view data is monochromatic; When view data is monochrome, view data is converted to cyan, magenta, yellow and black data; The colouring information of cyan, magenta, yellow and black data of conversion is compared with the colouring information that sets in advance in the halftoning table, be worth with synthetic (resultant) of output and storage cyan, magenta, yellow and black; And from the composite value of the cyan, magenta, yellow and the black that generate, extract the composite value of black.
Value when the value of the redness (R) in the colouring information item of view data, green (R) and blue (B) can be monochromatic with definite view data equates.
In compare operation, the colouring information of the cyan of conversion, magenta, yellow and black data can be compared with the colouring information that is provided with in the halftoning table corresponding to black, with the composite value of output and storage cyan, magenta, yellow and black.
In extracting operation, cyan, magenta and yellow composite value can be deleted from the composite value of the cyan, magenta, yellow and the black that generate, to extract the composite value of black.
View data can be represented by red, green and blue combination.
Aforementioned and/or the others and the application of this total inventive concept can also realize that this image processing system comprises by a kind of image processing system is provided: controller, determine whether view data is monochromatic; Transducer when view data is monochrome, is converted to cyan, magenta, yellow and black data with view data; The halftone process device, be used for will conversion the colouring information of cyan, magenta, yellow and black data compare with the colouring information that sets in advance at the halftoning table, to export the composite value of cyan, magenta, yellow and black; And extractor, from the composite value of the cyan, magenta, yellow and the black that generate, extract the composite value of black.
Controller can the movement images data redness (R), the value of green (R) and blue (B), and when R, the G of view data is equal with B, determine that view data is monochromatic.
The halftone process device can with about the colouring information of cyan, magenta, yellow and the black data of conversion, compare with the colouring information that sets in advance in the halftoning table, with the composite value of generation cyan, magenta, yellow and black corresponding to black.
Extractor can be deleted cyan, magenta and yellow composite value from the composite value of the cyan, magenta, yellow and the black that generate, to extract the composite value of black.
Aforementioned and/or the others and the application of this total inventive concept can also realize by a kind of image processing system is provided, this image processing system comprises: processor, according to the colouring information item of color data with reference to the colouring information item in the halftoning table, generate the composite value of a plurality of color data, and extractor, the composite value of extraction black from the composite value of color data.
Aforementioned and/or the others and the application of this total inventive concept can also realize by a kind of image processing apparatus is provided, this image processing apparatus comprises: image source, the image that comprises a plurality of colouring information items is provided, and these a plurality of colouring information items comprise the color of the first multicolor image form respectively; And processor, determine whether image is the monochrome image form, and determine, with the single color reproduction image of the second multicolor image form according to affirming of monochrome image form.
Aforementioned and/or the others and the application of this total inventive concept can also realize that this method comprises by a kind of image forming method is provided: compare the colouring information item of the image of the first multicolor image form, to determine whether image is the monochrome image form; The colouring information item is converted to the colouring information item of the second multicolor image form, and this second multicolor image form comprises the color that can represent the monochrome image form; Remove except can response image be the monochrome image form determine to represent colouring information item the color of monochrome image form, the second multicolor image form; And utilize the residue colouring information item of the second multicolor image form to come reproduced image.
Description of drawings
From the detailed description of carrying out below in conjunction with accompanying drawing, these of this total inventive concept and/or others and application will be clearer, in the accompanying drawing:
Fig. 1 is the schematic block diagram according to the image processing system of the exemplary embodiment of this total inventive concept;
Fig. 2 illustrates the colouring information item of the view data that is stored in the monochrome image in the memory;
Fig. 3 illustrates the colouring information item of the view data that is stored in the multicolor image in the memory;
Fig. 4 illustrates the composite value that obtains according to this total inventive concept, colouring information item by relatively cyan, magenta, yellow and black data and the colouring information item in the halftoning table set up before;
Fig. 5 shows according to this total inventive concept, by colouring information item that compares cyan, magenta, yellow and black data and the composite value that obtains with the colouring information item in the halftoning table of each color foundation before;
Fig. 6 illustrates according to a flow chart of the compensation process of the image processing system of the exemplary embodiment of total inventive concept; And
Fig. 7 is the schematic block diagram according to the image processing system of the exemplary embodiment of describing its total inventive concept of basis of handling operation.
Embodiment
Now will be in detail with reference to each embodiment of this total inventive concept, the example of each embodiment illustrates in the accompanying drawings, and wherein spreading all in full, identical reference number refers to components identical.Below by each embodiment is described with reference to the drawings so that explain this total inventive concept.
With reference to figure 1, illustrate the example system configuration that is suitable for putting into practice this total inventive concept.Example images forms device 100 and comprises interface 110, and forming device 100 by this interface image can communicate by letter with main process equipment 200 (as computer or image or file scanning equipment).Communication between main process equipment 200 and the image processing system 100 can include but not limited to the transmission of printer control command, image processing command and view data.This total inventive concept is not subject to hardware configuration and the communication protocol that is used for embodying interface 110, and is same, and for briefly, the realization details of interface 110 also will be omitted.
Example images forms device 100 and comprises controller 120, and this controller 120 is used to guide the interoperability of the assembly of image processing system 100, and is used for as operating image data processing by processing described below.Controller 120 can be the general processor as digital signal processor (DSP), can be lightweight (lightweight) processor as flush bonding processor, perhaps can be application specific processor.This total inventive concept is not restricted to the hardware configuration or the instruction set architecture of controller 120.In addition, be illustrated as single assembly although be appreciated that controller 120, some embodiment of this total inventive concept comprises that the distributed treatment by a plurality of treatment elements realizes.For example, controller 120 can comprise: hardware control is used to operate the hardware mechanical device of image processing system 100; And, be used for carries out image processing and reproduce operation as the independent image processor of DSP.This total inventive concept intention comprises all such replacements and realizes, and after having seen the disclosure for those skilled in the art with conspicuous other realizations.
Although do not illustrate, but be appreciated that, controller 120 can comprise as the permanent storage by flash memory, read-only memory (ROM) or magnetic or light medium, and can comprise as volatile storage, perhaps can comprise the combination of permanent and volatile memory by random access storage device (RAM).Storage in the controller 120 can also have a plurality of sections, as the data storage that is used for keeping the processor instruction that will be carried out by controller 120 and the code memory of the constant that comprises the static lookup table and is used to store data (as the image in stage of the variation of handling) and deal with data (as variable and volatibility look-up table).Controller 120 can also comprise the memory that spreads all over each assembly distribution, comprises cache memory and piplined memory.
Example images forms device 100 and comprises transducer 130, halftone process device 140 and extractor 150, describe below with reference to accompanying drawing 7, its each can communicate by letter with controller 120, and may be implemented as in the software module that realizes by it carrying out on same processor of controller 120.
Fig. 7 is according to the exemplary embodiment of this total inventive concept, with the functional block diagram of the image processing system 100 of single color output image.As used herein, " monochrome " picture format is the color scheme of image that includes only the depth of particular color.The greyscale color scheme is the example of this monochrome image form." polychrome " picture format is the picture format that comprises the depth of a plurality of colors.In order to describe but do not limit be, input image data will be by for example multicolor image form of redness, green and blue (RGB) color space definition, and the output color space of image processing system 100 is another kind of polychrome color spaces, for example cyan, magenta, yellow and black (CMYK) color space.In with the exemplary embodiment that will describe now, when when polychrome RGB input data determine that input picture is monochromatic (for example gray scale), output image will be with the single color black (K) of the multicolor image form of CMYK color space definition (for example by) output.It will be readily appreciated by those skilled in the art that this total inventive concept can be extended to other color space and single color is selected, and do not deviate from the scope of its spirit and intention.
As shown in Figure 7, example images forms device 100 and comprises controller 120, transducer 130, halftone process device 140 and extractor 150, its each will be in following detailed description.Help by this total inventive concept is understood in the description of exemplary embodiment assembly of explanation although be appreciated that the function distinguishing of Fig. 7, such configuration is not necessity for putting into practice this total inventive concept.Except shown in and described assembly those can replace them, the function that is described as realizing in a plurality of assemblies can be incorporated in the single component, and each assembly that is described as dispersing can be crossed over a plurality of assemblies distributions.In fact, multiple variation, substitutions and modifications will become apparent for those skilled in the art after having seen the disclosure, and this total inventive concept intention comprises all such alternative arrangements.
Usually, the view data of coloured image comprises the colouring information item that comes define color by for example amount of red (R), green (G) and blueness (B).
RGB information can be divided into three attributes of tone, brightness and saturation.Tone is what to define be perceived as the characteristic of color, and for example for RGB color scheme, tone is divided into R, G and B.Brightness refers to the bright or dark rank of color (degree), and saturation refers to the purity of color.
In some embodiment of this total inventive concept, controller 120 is checked the colouring information item, to determine whether rgb value equates, is the monochrome image form at this situation controller 120 to other assembly indicating image data.
For example, the colouring information item can be taked one of 256 rank, makes the value of the darkest black designated " 0 ", and the value of the brightest white designated " 255 ".
In some embodiment of this total inventive concept, controller 120 is determined when the colouring information item of the rgb value of keeping view data equates, view data is the view data of monochrome image form.
For example, (in the time of B=0), view data is confirmed as the view data corresponding to black for R=0, G=0 when the value of the colouring information item all designated " 0 " of R, G and B data.(in the time of B=255), view data is confirmed as the view data corresponding to white for R=255, G=255 when the value of the colouring information item all designated " 255 " of R, G and B.
Fig. 2 illustrates the colouring information item of the view data that is stored in the monochrome image in the memory.As shown in Figure 2, the colouring information item corresponding to color R, G and B is stored in the memory.When the colouring information item of R, G and B equates, for example (1,1,1), (33,33,33), (231,231,231) and (65,65,65), view data is confirmed as the view data of monochrome scheme, and so can be exported with monochromatic black.Fig. 3 illustrates the view data of coloured image, and wherein the difference between the monochrome image of the coloured image of Fig. 3 and Fig. 2 is clearly.
In some embodiment of this total inventive concept, the cyan of monochrome image, magenta, yellow and black data utilize following formula to obtain:
C(＝M＝Y＝K)＝255-R(＝G＝B)
For example, when the colouring information item of input picture equates, R=G=B=250 for example, be that data are corresponding to the monochrome image form, cyan, magenta, yellow and black are converted into equal cyan, magenta, yellow and black data, i.e. each value of designated 5 of the colouring information item of CMYK picture format.
In case view data is converted into cyan, magenta, yellow and black data, halftone process device 140 is just with the colouring information item of cyan, magenta, yellow and the black data of conversion, compare with the colouring information item in the halftoning table of setting up before, with output with store the composite value of cyan, magenta, yellow and black.This halftoning table can be created according to suitable halftoning process, is stored in the memory then.The halftoning table of Jian Liing can be created the rank of the value that is set to the corresponding color value and exports in advance, as will be conspicuous from the discussion of following paragraph.
For example, Fig. 4 shows a exemplary embodiment according to this total inventive concept, the colouring information item by relatively cyan, magenta, yellow and the black data of conversion and the halftoning table set up before in the composite value that obtains of colouring information item.As shown in Figure 4, the colouring information item of cyan, magenta, yellow and black data with identical before colouring information item in the halftoning table set up compare, to export the composite value of cyan, magenta, yellow and black respectively.
In the example of accompanying drawing 4, each of the halftoning table of Jian Liing refers to the halftoning table corresponding to black before because in this example, suppose controller 120 the indicating image data corresponding to the monochrome image form.
Therefore, the colouring information item of cyan, magenta, yellow and black data with compare corresponding to the data monochrome (for example black) of output multicolor image form, that store in the identical halftoning table, and the composite value of cyan, magenta, yellow and black is outputted as equal value.
When the colouring information item of determining cyan, magenta, yellow and black data during more than or equal to the colouring information item in the halftoning table, exemplary halftone process device 140 is with the colouring information item of cyan, magenta, yellow and the black data of conversion, compare with the colouring information item in the halftoning table of setting up before, with output with store composite value " 1 ".
Output image data can be that the unit produces with the pixel, and this pixel represented by the place value in the byte that is assigned to image, and therefore composite value represent by the binary value of " 0 " and " 1 ", so that represent the state of output pixel.
Therefore, when the colouring information item of determining cyan, magenta, yellow and black data during more than or equal to the colouring information item in the halftoning table, output composite value " 1 ".Therefore, as mentioned above, the value defined in the halftoning table specify the threshold level of output valve " 1 " for pixel.
When the colouring information item of determining cyan, magenta, yellow and black data during less than the colouring information item in the halftoning table, exemplary halftone process device 140 with the colouring information item of cyan, magenta, yellow and the black data of conversion, compare with the colouring information item in the halftoning table of setting up before, to export composite value " 0 ".
Then, exemplary extractor 150 extracts the composite value of the single color of polychrome output image form respectively, for example black in the composite value of cyan, magenta, yellow and the black of storage.
That is to say, opposite in order to export the single color of multicolor image form with the color combinations of utilizing the multicolor image form, from the composite value of cyan, magenta, yellow and black, only extract the composite value of single color (for example black).
In some embodiment of this total inventive concept, by from output image data, removing the composite value that cyan, magenta and yellow composite value extract black.
On the other hand, when controller 120 determines that image is multicolor image, image as shown in Figure 3, according to this total inventive concept, by with the colouring information item of cyan, magenta, yellow and black data, comparing, obtain composite value with the colouring information item in the halftoning table of setting up with color separately before.As shown in Figure 5, when the view data that receives is not the view data of monochrome image, as determining by for example controller 120, transducer 130 is converted to cyan, magenta, yellow and black data with view data, and halftone process device 140 is being respectively with the colouring information item of cyan, magenta, yellow and the black data of conversion, comparing with the colouring information item in the halftoning table of setting up with color separately before, with output with store the composite value of cyan, magenta, yellow and black.
Particularly, the colouring information item of cyan data is compared with the colouring information item corresponding to cyan in the halftoning table of setting up before, with the composite value of output and storage cyan.The colouring information item of magenta, yellow and black is compared respectively with corresponding to the colouring information item of the halftoning table of setting up before magenta, yellow and the black, to export and to store its composite value separately.
Therefore, colored view data utilization is stored in the composite value of cyan, magenta, yellow and black in the memory and exports, and produces output image according to the polychrome scheme.
After this, be fit to the exemplary compensation deals that the image processing system of this total inventive concept is put into practice in configuration with describing.
Fig. 6 is the flow chart that illustrates according to selectivity output image color process exemplary embodiment, image processing system of this total inventive concept.In operation 500, the view data that acquisition is represented by the combination of RGB color value, and determine whether the view data that receives is the view data of monochrome image.
For example, whether be equal to each other with definite appointed rgb value by the RGB colouring information item of controller 120 check image data.As mentioned above, when RGB colouring information item is identical, determine that view data is a monochrome image.
When view data was confirmed as monochrome, process forwarded operation 510 to, and view data for example is converted into cyan, magenta, yellow and black data by transducer 130 thus.
In the exemplary embodiment, cyan, magenta, yellow and black data utilize following formula conversion:
C(＝M＝Y＝K)＝255-R(＝G＝B)
As mentioned above, in case view data is converted into cyan, magenta, yellow and black data, process just forwards operation 520 to, wherein the colouring information item of Zhuan Huan cyan, magenta, yellow and black data, compare with the colouring information item in the halftoning table of the single output color of setting up before, with the colouring information item of determining cyan, magenta, yellow and black data whether more than or equal to the colouring information item in the single color halftoning table (for example black halftoning table).
When the colouring information item of determining cyan, magenta, yellow and black data during more than or equal to the colouring information item in the single color halftoning table, process forwards operation 530 to, exports composite values " 1 " and is stored in the memory by for example halftone process device 140 thus.
When the colouring information item of determining cyan, magenta, yellow and black data during less than the colouring information item in the halftoning table, process forwards operation 540 to, wherein exports and store composite value " 0 ".
Process can forward operation 550 then to, wherein extracts the composite value of black from the composite value of cyan, magenta, yellow and the black of storage by for example extractor 150.
In some embodiment of this total inventive concept, from the composite value of cyan, magenta, yellow and the black of storage, delete cyan, magenta and yellow composite value, only stay the composite value of remaining black thus.
On the other hand, if determined that in operation 500 view data is not a monochrome image, this process forwards operation 560 to, and view data is converted to cyan, magenta, yellow and black data by for example transducer 130 thus.
In case view data is converted into cyan, magenta, yellow and black data, process just forwards operation 570 to, thus the colouring information item of Zhuan Huan cyan, magenta, yellow and black data, comparing with the colouring information item in the halftoning table of setting up with color separately before, with the colouring information item of determining cyan, magenta, yellow and black data whether more than or equal to the colouring information item in the halftoning table.
When the colouring information item of determining cyan, magenta, yellow and black data during more than or equal to the colouring information item in the halftoning table, process forwards operation 580 to, exports composite values " 1 " and is stored in the memory by for example halftone process device 140 thus.
When the colouring information item of determining cyan, magenta, yellow and black data during less than the colouring information item in the halftoning table, process forwards operation 590 to, exports and store composite value " 0 " thus.
Some embodiment of this total inventive concept provides for the functional unit of making, transmit, concluding the business and/or sell as the processor instruction of encoding on the computer-readable medium.When such embodiment, total can put into practice this inventive concept, and no matter carry out the processing platform of processor instruction on it, also no matter the mode that encode processor instructs on medium.
Be appreciated that computer-readable medium can be any medium that instruction can be retrieved then, decode and be carried out by processor coding on it, comprise electricity, magnetic and light storage device, and wired, wireless, optics and acoustics communication channel.Computer-readable medium can comprise here the permanent storage that is called as " computer readable recording medium storing program for performing " and be called as here " computer-readable transmission medium " as the arbitrary of space-time storage or both.The example of computer readable recording medium storing program for performing includes but not limited to, read-only memory (ROM), random-access memory (ram) and other electricity storage; CD-ROM, DVD and other optical storage; And tape, floppy disk, hard disk and other magnetic storage.Computer readable recording medium storing program for performing can be crossed over assembly and distribute, to comprise this distribution by the storage system of interconnection of telecommunication network.The computer-readable transmission medium can transmit coded command on electromagnetic carrier or signal, perhaps as the acoustic signal by the acoustics transmission medium.In addition, processor instruction can obtain with the algorithm construction of various programming languages from this total inventive concept, and it is only expected the multiple attainable abstract of this total inventive concept is shown.
Although illustrated and described some embodiment of this total inventive concept, but those skilled in the art will recognize that, can make amendment in these embodiments and do not deviate from the principle and the spirit of this total inventive concept, scope of the present invention is by claims and the definition of its equivalent.
As mentioned above, by image processing system, can produce single color and need not to make up multiple color with single color output monochrome image according to this total inventive concept.As a result, can improve print quality.
Claims (19)
1, a kind of method that is used for the color of output image formation device, this method comprises:
Determine whether view data is monochromatic;
When view data is monochrome, view data is converted to cyan, magenta, yellow and black data;
The colouring information of cyan, magenta, yellow and black data of conversion is compared with the colouring information in being arranged on the halftoning table before, with output and store the composite value of cyan, magenta, yellow and black; And
From the composite value of the cyan, magenta, yellow and the black that generate, extract the composite value of black.
2, the method for claim 1, wherein in determining operation, the value of the redness in the view data, green and blue RGB compares mutually, and when rgb value was equal, view data was confirmed as monochrome.
3, the method for claim 1, wherein, in compare operation, with the colouring information of cyan, magenta, yellow and the black data of conversion, compare, with output and store the composite value of cyan, magenta, yellow and black with the colouring information that is provided with in the halftoning table corresponding to black.
4, method as claimed in claim 3 wherein, in extracting operation, is deleted cyan, magenta and yellow composite value, to extract the composite value of black from the composite value of the cyan, magenta, yellow and the black that generate.
5, the method for claim 1, wherein the combination by red R, green G and blue B comes the presentation video data.
6, a kind of image processing system comprises:
Controller determines whether view data is monochromatic;
Transducer when view data is monochrome, is converted to cyan, magenta, yellow and black data with view data;
The halftone process device is compared the colouring information that the colouring information of cyan, magenta, yellow and the black data of conversion is provided with in the halftoning table, with the composite value of output cyan, magenta, yellow and black; And
Extractor extracts the composite value of black from the composite value of the cyan, magenta, yellow and the black that generate.
7, image processing system as claimed in claim 6, wherein, the value of the red R of controller movement images data, green G and blue B, and determine that when R, the G of view data equate with B view data is monochromatic.
8, image processing system as claimed in claim 6, wherein the halftone process device with the colouring information of cyan, magenta, yellow and the black data of conversion, with the halftoning table in before the colouring information that is provided with corresponding to black compare, with the composite value of generation cyan, magenta, yellow and black.
9, image processing system as claimed in claim 8, wherein, extractor is deleted cyan, magenta and yellow composite value from the composite value of cyan, magenta, yellow and the black of generation, to extract the composite value of black.
10, a kind of image processing system comprises:
Processor according to the colouring information item of color data with reference to the colouring information item in the halftoning table, generates the composite value of a plurality of color data; And
Extractor, the composite value of extraction black from the composite value of color data.
11, image processing system as claimed in claim 10, wherein, a plurality of color data comprise cyan, magenta, yellow and black data.
12, image processing system as claimed in claim 10, wherein, processor generates first value and second value as composite value according at each colouring information item of color data with reference to the comparative result between the respective color item of information of halftoning table.
13, image processing system as claimed in claim 12, wherein, only when color data was monochrome, extractor extracted the composite value of black.
14, a kind of image processing apparatus comprises:
Image source provides the image that comprises a plurality of colouring information items, and these a plurality of colouring information items comprise the color of the first multicolor image form respectively; And
Whether processor, the colouring information item of determining image corresponding to the monochrome image form, and behind the determining certainly of monochrome image form, with the single color reproduction image of the second multicolor image form.
15, image processing apparatus as claimed in claim 14, wherein, processor is converted to a plurality of colouring information items of the second multicolor image form with a plurality of colouring information items of the first multicolor image form, and the colouring information item of the first multicolor image form is determined the monochrome image form.
16, image processing apparatus as claimed in claim 14, wherein, the state of the pixel of the second multicolor image form is determined in the comparison of the analog value of processor from the halftoning look-up table of a plurality of colouring information items and single color.
17, image processing apparatus as claimed in claim 14, wherein, behind negate the determining of monochrome image form, processor comes reproduced image with the second multicolor image form, and by with the comparison of the halftoning look-up table of the respective color of the second multicolor image form, determine the state of the pixel in the respective color of the second multicolor image form.
18, a kind of image forming method comprises:
Relatively whether the colouring information item of the image of the first multicolor image form is the monochrome image form with definite image;
The colouring information item is converted to the colouring information item of the second multicolor image form, and this second multicolor image form comprises the color that can represent the monochrome image form;
Remove except can in response to image be the monochrome image form determine to represent colouring information item the color of monochrome image form, the second multicolor image form; And
Utilize the residue colouring information item of the second multicolor image form to come reproduced image.
19, image forming method as claimed in claim 18, wherein, the reproduction of image comprises: in response to the halftoning look-up table in the comparison of the corresponding value of pixel, the pixel status of the residue colouring information item of the second multicolor image form is set, and this halftoning look-up table is corresponding with remaining colouring information item.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20070001488 | 2007-01-05 | ||
| KR1488/07 | 2007-01-05 | ||
| KR130572/07 | 2007-12-14 |
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| Publication Number | Publication Date |
|---|---|
| CN101247464A true CN101247464A (en) | 2008-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100881403A Pending CN101247464A (en) | 2007-01-05 | 2008-01-04 | Apparatus and method for processing an image |
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| Country | Link |
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| KR (1) | KR20080064711A (en) |
| CN (1) | CN101247464A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102375380A (en) * | 2010-08-23 | 2012-03-14 | 富士施乐株式会社 | Image forming apparatus and image processing device |
| CN102572208A (en) * | 2010-12-31 | 2012-07-11 | 北京大学 | Method and system for converting four-color blackness of image into single-color blackness |
| CN105306915A (en) * | 2014-07-29 | 2016-02-03 | 深圳市新万像科技有限公司 | Monochrome image identification method and monochrome image identification device for medical display |
| CN110870294A (en) * | 2017-07-24 | 2020-03-06 | 惠普发展公司，有限责任合伙企业 | Feature-based operation of an image forming apparatus |
-
2007
- 2007-12-14 KR KR1020070130572A patent/KR20080064711A/en not_active Application Discontinuation
-
2008
- 2008-01-04 CN CNA2008100881403A patent/CN101247464A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102375380A (en) * | 2010-08-23 | 2012-03-14 | 富士施乐株式会社 | Image forming apparatus and image processing device |
| CN102375380B (en) * | 2010-08-23 | 2015-10-21 | 富士施乐株式会社 | Image processing system and image processing apparatus |
| CN102572208A (en) * | 2010-12-31 | 2012-07-11 | 北京大学 | Method and system for converting four-color blackness of image into single-color blackness |
| CN105306915A (en) * | 2014-07-29 | 2016-02-03 | 深圳市新万像科技有限公司 | Monochrome image identification method and monochrome image identification device for medical display |
| CN110870294A (en) * | 2017-07-24 | 2020-03-06 | 惠普发展公司，有限责任合伙企业 | Feature-based operation of an image forming apparatus |
| US11095797B2 (en) | 2017-07-24 | 2021-08-17 | Hewlett-Packard Development Company, L.P. | Characteristics based operation of image forming apparatus |
| CN110870294B (en) * | 2017-07-24 | 2021-12-10 | 惠普发展公司，有限责任合伙企业 | Feature-based operation of an image forming apparatus |
| US11595547B2 (en) | 2017-07-24 | 2023-02-28 | Hewlett-Packard Development Company, L.P. | Characteristics based operation of image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080064711A (en) | 2008-07-09 |
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