JP4508953B2 - Image processing method and image processing apparatus - Google Patents

Description

  The present invention relates to a technique for performing color synthesis processing on objects of different colors when color space conversion is performed on a character or graphic object from a first color space to a second color space.

  Conventionally, color data to be handled in a color printer that prints graphics and image data is given as RGB values specified by a color mode or command in the case of graphics, and in the case of image data, RGB dot sequential or RGB plane sequential. Given in the form. In addition, the color space for handling color data is not limited to RGB, but includes a YMC color space (by ink characteristics or the like) unique to a color printer, an XYZ color space defined by CIE, or the like.

  In any case, when printing is performed inside the color printer, the input data is subjected to color reproduction processing corresponding to the color space defined by the color printer (for example, conversion from RGB to YMCK). ) Actual printout is performed.

  In general, when color matching between the color data handled by the above-described color printer and the color data handled by a color display such as a color scanner or CRT is taken into consideration, one reference color space is defined, and the color printer, the color scanner, Color correction that matches each light emission (color) characteristic is performed with the color display.

  In this case, the color processing inside the color printer also corresponds to the reference color space, and for example, even if an image displayed on the color display is output by the color printer, it can be faithfully reproduced.

  For example, in order to handle the same color data in devices such as a color scanner, a color display, and a color printer, a standard color space, that is, a device-independent color space is defined, and a color space conversion process corresponding to each device is performed. The color matching can be realized between the devices by using the color space that is specific to each device.

  Actually, the color reproduction range of each device is different due to the inherent physical characteristics of each device, so it is difficult to pursue a colorimetric match, but in general, CIE1976 L * Color correction that minimizes the color difference using color difference formulas such as a * b * has been proposed.

  However, many color difference formulas have been proposed for evaluating whether two colors expressed on different media, such as a screen for a color display and a recording paper for a color printer, are equal. In many cases, they are used properly depending on the purpose of use.

  At the same time, there are several methods for color reproduction, which are also properly used depending on the purpose. When the above-described color matching is taken into consideration, the evaluation method inevitably differs depending on what kind of color reproduction is intended. In particular, in a color printer, the internal color reproduction method is an important factor affecting the image quality of the printed matter to be output. In general, as described above, an attempt has been made to perform correction so as to minimize the color difference using the CIE1976 L * a * b * color difference formula or the like. This method is effective when color data read from a color scanner is reproduced by a color printer. This is because the original is a reflective original (color that has been reproduced on paper) and it is relatively easy to reproduce it with the ink of the printing apparatus. Since the mechanism of physical color development is basically the same, color reproduction is easier compared to other media even if there are differences in ink characteristics and problems in density (tone).

  However, colors that are emitted on the screen of a color display have physical properties that are different from those of reflective originals, and there is a limit to the pursuit of color reproducibility by a general color difference formula. When an image output on such a medium is a natural image, color reproduction called preferred matching is often used in many cases. This is intended to achieve more favorable color reproduction for some of the most important colors in the image (for example, human skin color) apart from the point of whether the reproduced image is the same color as the original image It is.

  However, when handling data such as natural images, even if such color reproduction is effective, color reproduction that does not consider uniform colors when handling data such as computer graphics (CG) images. Inconvenience occurs in processing.

Therefore, if the color reproduction process can be changed according to the data to be processed, the above problem can be solved. Therefore, it is possible to provide a multicolor printing apparatus that can print out with more preferable image quality by selecting a color reproduction process corresponding to the data to be handled.
Japanese Patent Laid-Open No. 2001-186365

  However, in the above-described conventional example, when processing data in which CG data and image data are combined, a different rendering intent corresponding to the data to be handled is applied, and whichever rendering intent is to be combined, There is a problem that it should be selected and applied or cannot be clearly defined.

The present invention designates a composite color processing method according to the purpose of image creation, and results of color matching by the first color matching method and color matching by the second color matching method by the designated composite color method The purpose is to synthesize .

The present invention comprises a first object composed of a first color, designated with a first transparency and synthesis attribute and a first color matching method, and a second color overlapping the first object. An image processing method configured to process a second object having a second transparency, a synthesis attribute, and a second color matching method, and specifying a synthesis color processing method according to the purpose of image creation A workflow designation step, a synthesis step of obtaining a synthesized color by synthesizing the first color and the second color according to the first transparency, the synthesis attribute and the second transparency, and the synthesis attribute; and the synthesis to composite color obtained in step, a step of performing color matching in the first color matching method and the second color matching method, by the designated composite color processing method, the first color And having an arithmetic processing step of performing arithmetic processing for combining the results of etching process results of color matching and in the said color matching in the second color matching method.

The present invention also includes a first object configured with a first color, designated with a first transparency and composition attribute and a first color matching method, and overlapping the first object. is composed of a color, a second transmission, a synthetic attribute and an image processing apparatus in which the second color matching method to process a second object specified, the composite color processing method in accordance with the purpose of the image creation Workflow specifying means for specifying; combining means for determining a combined color by combining the first color and the second color according to the first transmission, the combining attribute and the second transmission, combining attribute; By means of color matching by the first color matching method and the second color matching method for the synthesized color obtained by the synthesizing means, and by the designated synthesized color processing method , Color And having a processing means for performing arithmetic processing for combining the results of etching process results of color matching and in the said color matching in the second color matching method.

According to the present invention, a composite color processing method corresponding to the purpose of image creation is designated, and the result of color matching by the first color matching method and color matching by the second color matching method are designated by the designated composite color method. By combining the results, two types of color matching results can be combined by a combined color method according to the purpose of image creation .

  The best mode for carrying out the invention will be described below in detail with reference to the drawings.

[First Embodiment]
FIG. 1 is a diagram illustrating main processing relating to color processing in the first embodiment. As shown in FIG. 1, input data is first temporarily stored in the input unit 101 and then sent to the data analysis unit 102. Then, the data analysis unit 102 analyzes what kind of data it is. Specifically, the data format of the input data is recognized, and if the pixel size and the RGB value of each pixel are arranged in a dot sequential format, it is analyzed as image data. If data representing the type of figure and its coordinate values and color specified RGB data are arranged in a format that matches the processing system, the data is analyzed as CG data.

  Next, based on the result analyzed by the data analysis unit 102, the input data is branched into a development system suitable for the processing of the data. That is, if the result analyzed by the data analysis unit 102 is image data, the input data is sent from the data analysis unit 102 to the image development system 103. The image development system 103 converts the image data into YMC data with reference to the color conversion processing unit 104, develops the drawing data, and renders the data in the page buffer 107.

  If the result analyzed by the data analysis unit 102 is CG data, the input data is sent from the data analysis unit 102 to the CG development system 105. The CG development system 105 converts the data into YMC data while referring to the color conversion processing unit 106, develops the drawing data, and renders the data in the page buffer 10.

  Here, the composite color processing when the above-described color processing is incorporated in the host-side application will be described.

  FIG. 2 is a diagram illustrating an example of the configuration of the application processing block. As shown in FIG. 2, the application processing block 220 includes several internal processing blocks. First, a new creation processing block 221 is a block for processing creation of a new document. When a user instructs to create a new document, an area such as a memory is secured, and various settings are made based on template information for the new document. Processing such as setting information is performed. The editing work processing block 222 accesses a document that is currently being edited, and executes transformation, change of arrangement, etc. on an already existing object in accordance with an instruction interactively designated by the user.

  In the printer device management block 223, the printer device defined as an output target in the currently created document is managed as information. At the stage of creating a new document, for example, the default printer specified in the system is specified, but if the printer device is switched during the document creation process or editing, the internal printer is It is configured to update information.

  The composite color processing block 224 obtains the value of the composite color included in the print data by the calculation process of this embodiment. The control block 225 is a block that controls whether or not the calculation process in the composite color processing block 224 can be executed.

  Reference numeral 210 denotes a user interface for providing the user with composite color settings, which are displayed on a display of a host computer (not shown). In the example shown in FIG. 2, “composite color processing” 211, “no composite color processing” 212, “default setting” 213, “detail setting” 214, “OK” 215, “apply” 216, “cancel” 217 Each instruction button is displayed.

  Next, a synthesis process for synthesizing two images of different colors when the above-described synthesis color process is designated will be described.

  FIG. 3 is a diagram for explaining a combining process for combining two graphic data. In general, an overlapping portion of colors of an image to be drawn can be calculated according to an arbitrary color mixture calculation expression. In this example, it is assumed that two figures 310 and 320 are input as images, one figure 310 is transparent and has α_CG1 as a synthesized attribute value, and another figure 320 has transparency and α_CG2 as a synthesized attribute value. Further, since the transparency and composite attribute values of each figure are set for each pixel forming the image, the composite pixel can be calculated for each pixel at the time of synthesis.

  Since this overlapping portion 342 and the other portions 341 and 343 are different in color matching processing, as shown in FIG. 3, the regions 331 to 333 are appropriately decomposed. In the first embodiment, this division processing is configured to be appropriately performed on the printer side that has received the data.

  In the printer, for the object that is divided and corresponds to the overlap area, the data type (TYPE), the number of overlap (NUMBER OF OBJECT), and the overlap target are processed for color matching processing in the subsequent stage. Each original color (RGB1, RGB2,...) Of the resulting object is recorded, and for example, the following data structure is generated.

FILL {
TYPE = COMPOSITING
NUMBER OF OBJECT WAS = 2
RGB1 = 0.458824 0.733334 0, INTENT = CM1
RGB2 = 0.0 0.458824 0.733334, INTENT = CM2
LINE START FROM (257.616 321.832)
(226.152 321.832), (226.152 292.618)
(257.616 292.618), (257.616 321.832)
END
}
Here, a case where the above-described composite color processing is executed as an extended image processing function of an application will be described.

  FIG. 4 is a block diagram showing a flow of processing of the data object in the first embodiment. In FIG. 4, a document is generated when the user selects new creation from the application menu, and is created by selecting and arranging objects such as characters and graphics within the document. Also, as shown in FIG. 4, in the process of creation, it is possible to save the work in a timely manner, such as an editing work such as changing the shape of each object or changing the arrangement.

  In the system according to the first embodiment, a workflow can be defined when a document creation operation is performed. The workflow is managed by the workflow information block 401. As shown in the workflow specification block 400, for example, when creation of a document is the purpose of WEB content, No. 1 is applied as the workflow ID.

  Similarly, when the creation of a document is for the purpose of printing, No. 2 is applied as the workflow ID. Furthermore, it is possible to customize a workflow other than the workflow prepared on the system side, and in this case, a workflow ID can be appropriately assigned.

  Here, a description will be given of processing in the case where a document with the workflow ID No. 1 is created and an object such as graphics overlaps with an already placed object. If the object has a transparent attribute in this condition, the extended image processing function 412 is called. In the extended image processing function 412, an extended function for processing an overlapping portion is provided in a plug-in format in the system.

  When the corresponding extended function is called from the application software, the presence or absence of the function is inspected, and the process is continued when the function is available. In order to execute the dividing process on the previous overlapping portion, the corresponding object data is appropriately transferred to the dividing block 420. In the divided block 420, the data scan block 421 searches for an area where the data should be divided.

  In the divided data creation block 422, data is reconstructed based on the above-described search, and divided data is created. At this time, with respect to the overlapping portion, the overlapping portion data is registered in a state where the information of color 1 and its rendering intent, and color 2 and its rendering intent are retained. For example, the following data is generated.

FILL {
WORK FLOW ID = 1
TYPE = COMPOSITING
NUMBER OF OBJECT WAS = 2
RGB1 = 0.458824 0.733334 0, INTENT = CM1
RGB2 = 0.0 0.458824 0.733334, INTENT = CM2
LINE START FROM (257.616 321.832)
(226.152 321.832), (226.152 292.618)
(257.616 292.618), (257.616 321.832)
END
}
Next, the data object is sent to the image composition processing block 430, where color composition processing is performed. Here, a case will be described in which different colors are designated for the two objects 432 and 434 and the designated color matching methods (rendering intents) are different.

  When a certain graphic object (for example, a rectangular image) is given, the image is once rendered, and RGB pixels are developed in a rectangular area. Here, the designated color of all the pixels in the rectangular area is color 1, RGB value = (Rc, Gc, Bc) is assigned, and the transmission and synthesis attribute values in the area are all α1. Further, it is assumed that this graphic object is handled as a CG image, and the method of “prioritizing hue” is designated as the color matching method.

  When the graphic object is arranged on the print page, it is assumed that it overlaps the area of the image image due to the positional relationship. The image image is composed of pixel values (RGB), and the transmission and synthesis attribute values of all the pixels of the image image are all α2. As the color matching method, a method of “prioritizing minimum color difference” is designated.

  In order to synthesize the image image and the graphic data, it is necessary to repeat the synthesis calculation for each pixel with reference to each position information as appropriate.

  Here, the calculation method will be described by taking as an example the case where the pixel value of the image is color 2, that is, the case where the RGB value is (Ri, Gi, Bi).

  First, in the composite calculation 434, the following calculation is performed on the RGB values (Rc, Gc, Bc) of the color 1 (432) and the RGB values (Ri, Gi, Bi) of the color 2 (433) to obtain the composite color. RGB values (Rn, Gn, Bn) are obtained.

Rn = (Rc × α1 + Ri × α2) / (α1 + α2)
Gn = (Gc × α1 + Gi × α2) / (α1 + α2)
Bn = (Bc × α1 + Bi × α2) / (α1 + α2)
Next, a color matching process 436 is executed. When the color matching process of matching method 1 is applied to Rn, Gn, Bn obtained by the above calculation, (R1, G1, B1) is obtained.

  Apart from this, the color matching processing of the matching method 2 is applied to the previously obtained Rn, Gn, Bn. Similarly, (R2, G2, B2) can be obtained by this calculation. Then, the following calculation is applied to the two RGB values obtained, that is, (R1, G1, B) and (R2, G2, B2). In addition, calculation speed can be improved by using LUT437 for this calculation.

Rm = ( R1 × (α1 · W1) + R2 × (α2 · W2))
/ ((W1 · α1) + (α2 · W2))
Gm = ( G1 × (α1 · W1) + G2 × (α2 · W2))
/ ((W1 · α1) + (α2 · W2))
Bm = ( B1 × (α1 · W1) + B2 × (α2 · W2))
/ ((W1 · α1) + (α2 · W2))
Wi is a weighting factor for each matching method, and these are linked with the workflow ID 435. For example, when the workflow ID is “1”, the weighting factor W1 = 1.0 is applied to the method “prioritizing the hue”, and the weighting factor W1 = 0.5 is applied to the method “prioritizing the hue”. It is configured to be. The above-described workflow is a configuration that provides a combination of an optimal composition method (alpha blend, subtractive color mixture, additive color mixture) and a color matching method depending on the purpose of the image created. In FIG. 4, a user custom work in which a combination of a combination method and a color matching method that suits the user's preference is registered can be selected as a workflow.

  Since (Rm, Gm, Bm) calculated as described above becomes the color value in the overlap region, this result is returned to the extended image processing function 412 on the application side, and the document is one of the data elements constituting the document. Configure to store inside data. Then, when printing of the document is started from the application, these data are transferred to the printer, and a rendering process is appropriately executed to form a print image.

[Second Embodiment]
Next, a second embodiment according to the present invention will be described in detail with reference to the drawings.

  FIG. 5 is a block diagram showing a flow of processing of a data object in the second embodiment. As in the first embodiment, a document is generated when the user selects new creation from the application menu, and is created by selecting and arranging objects such as characters and graphics within the document. In addition, as shown in FIG. 5, in the creation process, it is possible to perform an editing operation such as an operation of changing the shape of each object or an arrangement of the object, or an appropriate time saving.

  In the system of the second embodiment, it is possible to define a workflow when performing document creation work. The workflow is managed by a workflow information block 501. As shown in the workflow designation block 500, for example, when the document creation is “document for general office”, 2 is substituted into the variable THP.

  Similarly, if the creation of the document is for the purpose of high-end printing such as POD printing, 4 is substituted into the variable THP.

  Here, a case where a document is created and an object such as graphics overlaps with an already placed object will be described. In this condition, if the object has a transparency attribute, the extended image processing function 512 is called, and the division process is executed on the overlapping portion.

  In addition, in order to perform the division process, the corresponding object data is appropriately transferred to the division block 520. In the divided block 520, the data scan block 521 searches for an area to be divided of data.

  In 522, data is reconstructed based on the above-described processing, and divided data is created. At this time, with respect to the overlapping portion, the overlapping portion data is registered in a state where the information of the color 1 and the rendering intent, and the color 2 and the rendering intent are retained. For example, the following data is generated.

FILL {
WORK FLOW ID = 2
TYPE = COMPOSITING
NUMBER OF OBJECT WAS = 2
RGB1 = 0.458824 0.733334 0.0, INTENT = Prefer hue
RGB2 = 0.0 0.458824 0.733334, INTENT = Prefer minimum color difference
LINE START FROM (257.616 321.832)
(226.152 321.832), (226.152 292.618)
(257.616 292.618), (257.616 321.832)
END
}
Next, the data object is sent to the image composition processing block 530, where color composition processing is performed. In the image composition processing block 530, processing is performed as in the first embodiment, and the value of the THP variable is examined in a determination 534. Here, the number of objects constituting the overlapping portion is compared with the THP variable. Here, when the number of overlapping objects is smaller than THP, the process branches to the normal color process 535, and otherwise, the process branches to the composite color process 536.

  In the normal color processing 535, the following calculation is performed for the color (RDi, GDi, BDi) (i = 1 to N) and the composite attribute (αDi, αDi, αDi) (i = 1 to N) of each object. Then, a composite color (RF, GF, BF) is obtained.

RF = Σ (RDi × αDi) / Σ (αDi)
GF = Σ (GDi × αDi) / Σ (αDi)
BF = Σ (BDi × αDi) / Σ (αDi)
Color matching processing is applied to these values (RF, GF, BF). In this case, the color matching method for the object registered first is applied. For example, in the previous data, the method of “prioritizing the hue” is specified, and this is applied to the color matching process for the composite color of the overlapping portion.

  Here, when the color matching process of the matching method 1 is applied to the composite color (RF, GF, BF) obtained by the above calculation, when (Rm, Gm, Bm) is obtained, this value is expanded. It is configured to return to the image processing function 512.

  On the other hand, if the number of overlapping objects is equal to or greater than THP, the process branches to the composite color processing 536. Here, a case will be described in which two objects are in the synthesis area, different colors are designated, and the designated color matching methods (rendering intents) are different.

  A specified color of a certain graphic object (for example, a rectangular image) is assigned color 1, RGB values are assigned by (Rc, Gc, Bc), and the transparency and composition attribute value is α1. Further, it is assumed that this graphic object is handled as a CG image, and the method of “prioritizing hue” is designated as the matching method.

  It is assumed that this graphic object overlaps the area of the image image. The permeation / composition attribute value corresponding to the image is α2. As the color matching method, a method of “prioritizing minimum color difference” is designated. In order to synthesize the image image and the graphic data, it is necessary to execute synthesis calculation for each.

  Here, the calculation method will be described by taking as an example the case where the pixel value of the image is color 2, that is, the case where the RGB value is (Ri, Gi, Bi).

  First, the following calculation is performed on the RGB value (Rc, Gc, Bc) of color 1 and the RGB value (Ri, Gi, Bi) of color 2, and the RGB values (Rn, Gn, Bn) of the composite color are calculated. Ask.

Rn = (Rc × α1 + Ri × α2) / (α1 + α2)
Gn = (Gc × α1 + Gi × α2) / (α1 + α2)
Bn = (Bc × α1 + Bi × α2) / (α1 + α2)
Next, color matching processing is executed. When the color matching process of matching method 1 is applied to Rn, Gn, Bn obtained by the above calculation, (R1, G1, B1) is obtained.

  Apart from this, the color matching processing of the matching method 2 is applied to the previously obtained Rn, Gn, Bn. By this calculation, (R2, G2, B2) can be similarly obtained. Then, the following calculation is applied to the two RGB values obtained, that is, (R1, G1, B) and (R2, G2, B2).

Rm = ( R1 × (α1 · W1) + R2 × (α2 · W2))
/ ((W1 · α1) + (α2 · W2))
Gm = ( G1 × (α1 · W1) + G2 × (α2 · W2))
/ ((W1 · α1) + (α2 · W2))
Bm = ( B1 × (α1 · W1) + B2 × (α2 · W2))
/ ((W1 · α1) + (α2 · W2))
Wi is a weighting factor for each matching method, and these are linked with the variable THP. For example, when the THP value is 2, the weighting factor W1 = 1.0 is applied to the method of “prioritizing the hue”, and the weighting factor W1 = 0.5 is applied to the method of “prioritizing the hue”. It is like that.

  Since (Rm, Gm, Bm) calculated as described above becomes the color value in the overlap region, this result is returned to the extended image processing function 512 on the application side, and the document is one of the data elements constituting the document. Configure to store inside data. Then, when printing of the document is started from the application, these data are transferred to the printer, the rendering process is executed as appropriate, and a print image is formed.

  As described above, even when different rendering intents are applied to a plurality of objects and when they are intended to be combined, the correct rendering intent can be processed.

  That is, in the case of color conversion for converting from the first color space to the second color space, and corresponding to a plurality of intents, first, the composite color is calculated and then obtained. The color matching process of method 1 and the color matching process of method 2 are provided for each synthesized color, and based on the two different color matching colors obtained, the weighting factor composed of this and the transmission attribute value By using the color value calculated by the above, it is possible to realize effective color reproduction.

  Further, when the above-described processing is realized, a part of the processing is executed on the application side (as a part of the extended function), and the workflow information is added to the print job. It is possible to apply optimum processing to each workflow while preventing a decrease or the like.

  Furthermore, based on the workflow information, if the number of overlapping objects is determined to be less than the specified number, the composition color is calculated, otherwise simple composition color calculation is performed. As a result, even when processing a complex document, it can be processed without causing a decrease in processing speed.

  Even if the present invention is applied to a system composed of a plurality of devices (for example, a host computer, an interface device, a reader, a printer, etc.), it is applied to an apparatus (for example, a copier, a facsimile machine, etc.) composed of a single device. It may be applied.

  Another object of the present invention is to supply a recording medium that records software program codes for realizing the functions of the above-described embodiments to a system or apparatus, and the computer (CPU or MPU) of the system or apparatus uses the recording medium as a recording medium. Needless to say, this can also be achieved by reading and executing the stored program code.

  In this case, the program code itself read from the recording medium realizes the functions of the above-described embodiment, and the recording medium storing the program code constitutes the present invention.

  As a recording medium for supplying the program code, for example, a floppy (registered trademark) disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like is used. be able to.

  Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (operating system) operating on the computer based on the instruction of the program code. It goes without saying that a case where the function of the above-described embodiment is realized by performing part or all of the actual processing and the processing is included.

  Further, after the program code read from the recording medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function expansion is performed based on the instruction of the program code. It goes without saying that the CPU or the like provided in the board or the function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing.

It is a figure which shows the main processes regarding the color process in 1st Embodiment. It is a figure which shows an example of a structure of an application process block. It is a figure for demonstrating the synthetic | combination process which synthesize | combines two figure data. It is a block diagram which shows the flow of a process of the data object in 1st Embodiment. It is a block diagram which shows the flow of a process of the data object in 2nd Embodiment.

Claims (3)

A first object composed of a first color, designated with a first transparency, composite attribute and a first color matching method, and a second color overlapping the first object, An image processing method for processing a second object for which a second transparency, a composite attribute, and a second color matching method are designated,
A workflow specifying step for specifying a composite color processing method according to the purpose of image creation;
Combining the first color and the second color in accordance with the first transmission, the composite attribute and the second transmission, the composite attribute to determine a composite color; and
A step of performing color matching in the first color matching method and the second color matching method for the synthesized color obtained in the synthesis step;
An arithmetic processing step for performing arithmetic processing for combining the result of color matching by the first color matching method and the result of color matching by the second color matching method by the designated composite color processing method; A featured image processing method. A first object composed of a first color, designated with a first transparency, composite attribute and a first color matching method, and a second color overlapping the first object, An image processing apparatus that processes a second object for which a second transparency, a composite attribute, and a second color matching method are designated,
A workflow specifying means for specifying a composite color processing method according to the purpose of image creation;
A synthesis means for obtaining a synthesized color by synthesizing the first color and the second color according to the first transmission, the synthesis attribute and the second transmission, the synthesis attribute;
Means for performing color matching in the first color matching method and the second color matching method for the combined color obtained by the combining means;
An arithmetic processing means for performing arithmetic processing for combining the result of color matching by the first color matching method and the result of color matching by the second color matching method by the designated composite color processing method; A featured image processing apparatus.   A program for causing a computer to execute the image processing method according to claim 1.

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