Information processing device and information processing program

Abstract

To provide an information processing device and an information processing program that allow a user to select the balance of a plurality of effects including gradation and color reproducibility as conditions for creating a color conversion profile including spot colors.SOLUTION: An information processing device includes CPU for receiving values of a device-independent color system, displaying a plurality of creation conditions for a color conversion profile for outputting color values of a device-dependent color system including spot colors such that the plurality of creation conditions are acceptable as choices, the plurality of creation conditions having different balances among a plurality of effects including gradation and color reproducibility, and creating the color conversion profile based on the accepted creation condition as the choice.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an information processing device and an information processing program. [Background technology]

[0002] Patent Document 1 describes a color profile creation system having a profile creation condition input means for a user to input profile creation conditions, a profile creation algorithm determination means for determining a profile creation algorithm for color matching and color separation based on the profile creation conditions, an evaluation item determination means for determining evaluation items for evaluating the accuracy of the color matching and color separation profiles based on the profile creation conditions, an evaluation threshold determination means for determining evaluation thresholds for evaluating the accuracy of the color matching and color separation profiles based on the profile creation conditions, a profile creation means for creating color matching and color separation profiles based on the determined profile creation algorithm, and a profile evaluation means for evaluating the color matching and color separation profiles using the determined evaluation items and evaluation thresholds. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-119371 A Summary of the Invention [Problem to be solved by the invention]

[0004] There is a technique for displaying the conditions for creating a color conversion profile on a user interface and accepting a selection. In this technique, a selection as to whether or not tonality is to be emphasized is accepted as a condition for creating a color conversion profile.

[0005] However, the balance between color reproducibility and tonality cannot be accepted as an option. In particular, when the color conversion profile includes a spot color, the accuracy of the color conversion profile for the spot color is low, so the balance between tonality and color reproducibility becomes important.

[0006] The present invention aims to provide an information processing device and an information processing program that allow a user to select the balance of multiple effects, including gradation and color reproducibility, as a creation condition for a color conversion profile that includes spot colors. [Means for solving the problem]

[0007] An information processing device according to a first aspect includes a processor, which displays a plurality of creation conditions for a color conversion profile that takes values ​​in a device-independent color system as input and outputs color values ​​in a device-dependent color system including spot colors, the creation conditions having different balances of effects including gradation and color reproducibility, and creates the color conversion profile based on the creation conditions accepted as options.

[0008] In addition, in an information processing device according to a second aspect, in the information processing device according to the first aspect, the processor displays, as an option for the creation conditions, colors to be changed so as to smooth out changes in color values ​​of the device-dependent color system in response to changes in values ​​of the device-independent color system in the color conversion profile in a receptive manner.

[0009] In addition, in an information processing device according to a third aspect, in the information processing device according to the first or second aspect, the processor displays information indicating a balance of the multiple effects under the creation conditions together with the options.

[0010] In addition, an information processing device according to a fourth aspect is the information processing device according to the second aspect, wherein the processor further displays the strength of the smoothing in a selectable manner.

[0011] In addition, an information processing device according to a fifth aspect is an information processing device according to the second aspect, wherein the processor calculates values ​​of the selected colors in the device-dependent color system for each value of a target device-independent color system, changes the values ​​of the selected colors in the device-dependent color system so as to smooth changes in the values ​​of the selected colors in the device-dependent color system relative to changes in the values ​​of the device-independent color system, calculates values ​​of the remaining colors in the device-dependent color system based on the changed values ​​of the selected colors in the device-dependent color system for each value of the target device-independent color system, and creates a color conversion profile that uses the values ​​of the device-independent color system as input, and outputs the changed values ​​of the selected colors in the device-dependent color system and the values ​​of the remaining colors in the device-dependent color system.

[0012] In addition, an information processing program according to a sixth aspect displays a plurality of creation conditions for a color conversion profile that takes values ​​in a device-independent color system as input and outputs color values ​​in a device-dependent color system including spot colors, the creation conditions having different balances of effects including gradation and color reproducibility, and causes a computer to create the color conversion profile based on the creation conditions accepted as options. Effect of the Invention

[0013] According to the first aspect, the user can select the balance of multiple effects including gradation and color reproducibility as a creation condition for a color conversion profile including spot colors.

[0014] According to the second aspect, by selecting the color to be smoothed, the user can select the balance between a number of effects including gradation and color reproducibility.

[0015] According to the third aspect, the user can directly select the balance between a number of effects including gradation and color reproducibility.

[0016] According to the fourth aspect, the user can select the strength of smoothing.

[0017] According to the fifth aspect, it is possible to achieve both gradation and color reproducibility.

[0018] According to the sixth aspect, the user can select the balance of a number of effects, including gradation and color reproducibility, as a creation condition for a color conversion profile including spot colors. [Brief description of the drawings]

[0019] [Figure 1] 1 is a block diagram showing a hardware configuration of an image forming apparatus according to an embodiment of the present invention; [Diagram 2] 1 is a functional block diagram of an image forming apparatus according to an embodiment of the present invention. [Diagram 3] 5A and 5B are diagrams illustrating an example of a display on a display of the image forming apparatus according to the first embodiment. [Figure 4] 6 is a flowchart showing an example of a specific process flow performed in the image forming apparatus according to the first embodiment. [Diagram 5] 13A and 13B are diagrams illustrating an example of a display on a display of an image forming apparatus according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings. In each drawing, the same or equivalent components and parts are given the same reference numerals. In addition, the dimensional ratios of the drawings are exaggerated for the convenience of explanation and may differ from the actual ratios.

[0021] [First embodiment] FIG. 1 is a block diagram showing the hardware configuration of an image forming apparatus serving as an information processing apparatus according to the first embodiment.

[0022] The image forming apparatus 10 is an apparatus that forms an image on a recording medium such as paper based on a print job, and may be any apparatus such as a printer or a multifunction machine.

[0023] The image forming apparatus 10 of this embodiment includes a CPU (Central Processing Unit) 10A as an example of a processor, a ROM (Read Only Memory) 10B, a RAM (Random Access Memory) 10C, a HDD (hard disk drive) 10D, a display 10F, a communication line I / F (interface) section 10G, and an output section 10H.

[0024] The CPU 10A controls the overall operation of the image forming apparatus 10. The ROM 10B stores various control programs and various parameters in advance. The RAM 10C is used as a work area when the CPU 10A executes various programs. The HDD 10D stores various data and application programs. The display 10F is a touch panel display and is used to input and display various information.

[0025] The communication line I / F unit 10G is connected to a communication line (not shown) and transmits and receives various data to and from other devices connected to the communication line.

[0026] The output section 10H forms an image on a recording medium such as paper using ink or toner of each color of CMYK (cyan, magenta, yellow, black) and a special color (for example, fluorescent pink) based on a print job.

[0027] The above-described components of the image forming apparatus 10 are electrically connected to each other via a system bus 10J. In the image forming apparatus 10 according to the present embodiment, the HDD 10D is used as a storage unit, but this is not limiting and other non-volatile storage units such as flash memory may be used.

[0028] With the above configuration, the image forming apparatus 10 according to this embodiment uses the CPU 10A to access the ROM 10B, the RAM 10C, and the HDD 10D, to obtain various data via the display 10F, and to display various information on the display 10F. The image forming apparatus 10 also uses the CPU 10A to control the transmission and reception of communication data via the communication line I / F unit 10G. For example, image data is received via the communication line I / F unit 10G from an information processing terminal realized by a PC (personal computer) or the like.

[0029] In the image forming apparatus 10 according to this embodiment, the CPU 10A executes a program pre-stored in the ROM 10B or the HDD 10D to perform processing to create a color conversion profile that takes values ​​in a device-independent color system as input and outputs values ​​in a device-dependent color system.

[0030] Next, the functional configuration of the image forming apparatus 10 according to the present embodiment configured as described above will be described. Fig. 2 is a functional block diagram of the image forming apparatus 10 according to the present embodiment. Each functional unit is realized by the CPU 10A executing a program prestored in the ROM 10B or the HDD 10D.

[0031] The image forming apparatus 10 has the functions of a reception unit 12, a profile creation unit 14, a profile storage unit 16, and a color conversion unit 18.

[0032] The reception unit 12 displays a selection screen for selecting the conditions for creating a color conversion profile on the display 10F. As shown in Fig. 3, this selection screen includes options 20A and 20B for selecting whether to smooth the color conversion profile, options 22A and 22B for selecting whether to smooth all colors of the device-dependent color system (for example, CMYK (cyan, magenta, yellow, black) and spot colors) or only spot colors, a balance display area 24 for displaying the balance between gradation and color reproducibility for the options 22A and 22B, and a slider bar 26 for selecting the strength of smoothing. Fig. 3 shows an example in which, when all colors of the device-dependent color system are smoothed, it is displayed that gradation is high but color reproducibility is low, and when only spot colors of the device-dependent color system are smoothed, it is displayed that gradation is relatively high and color reproducibility is relatively high. Also shown is an example in which option 20A for selecting to perform smoothing on the color conversion profile and option 22B for selecting to perform smoothing only on the spot colors of the device-dependent color system are selected, and a medium level of smoothing strength is selected using slider bar 26.

[0033] The profile creation unit 14 creates a color conversion profile that takes values ​​in a device-independent color system as input and outputs values ​​of each color in a second device-dependent color system (e.g., CMYK (cyan, magenta, yellow, black) and spot colors) including a spot color (fluorescent pink) according to the selected creation conditions.

[0034] Specifically, the profile creation unit 14 creates a device-dependent color system (e.g., L,R,G,B) corresponding to the values ​​of a first device-dependent color system (e.g., RGB (Red, Green, Blue)) of each grid point in the input color gamut of the information processing terminal. * a * b * Let each of the values ​​in the color space be a value in the target device-dependent color system.

[0035] If the creation condition is set to perform smoothing only on spot colors, the profile creation unit 14 performs the following process.

[0036] First, the profile creation unit 14 calculates the spot color values ​​of the second device-dependent color system for each of the target device-dependent color system values. Based on the calculation results of the spot color values, the profile creation unit 14 inputs the values ​​of the device-independent color system and outputs the spot color values ​​of the second device-dependent color system. The profile creation unit 14 changes the spot color values ​​so as to smooth the change in the spot color values ​​of the second device-dependent color system with respect to the change in the values ​​of the device-independent color system. The profile creation unit 14 calculates the CMYK color values ​​of the second device-dependent color system for each of the target device-independent color system values. Based on the calculation results of the changed spot color values ​​and CMYK color values, the profile creation unit 14 creates color conversion profiles for the spot color plate and the CMYK plate, which input the values ​​of the device-independent color system and output the changed spot color values ​​and CMYK color values ​​of the second device-dependent color system.

[0037] Moreover, when smoothing for all colors is selected as a creation condition, the profile creation unit 14 performs the following process.

[0038] First, the profile creation unit 14 calculates the values ​​of each of the CMYK colors and spot colors in the second device-dependent color system for each value in the target device-dependent color system. Based on the calculation results of the values ​​of each of the CMYK colors and spot colors, the profile creation unit 14 creates a color conversion profile for the spot color plate and the CMYK plate, which inputs the values ​​in the device-independent color system and outputs the values ​​of each of the CMYK colors and spot colors in the second device-dependent color system. The profile creation unit 14 changes the values ​​of the CMYK colors and spot colors in the color conversion profiles for the spot color plate and the CMYK plate so as to smooth the changes in the values ​​of the CMYK colors and spot colors in the second device-dependent color system in response to changes in the values ​​in the device-independent color system.

[0039] Moreover, when the creation condition indicates that no smoothing should be performed, the profile creation unit 14 performs the following process.

[0040] First, the profile creation unit 14 calculates the values ​​of each of the CMYK colors and spot colors in the second device-dependent color system for each value in the target device-dependent color system. Based on the calculation results of the values ​​of each of the CMYK colors and spot colors, the profile creation unit 14 creates a color conversion profile for the spot color plate and the CMYK plate that inputs the values ​​in the device-independent color system and outputs the values ​​of the CMYK colors and spot colors in the second device-dependent color system.

[0041] The profile storage unit 16 stores the created color conversion profiles for the spot color and CMYK plates.

[0042] The color conversion unit 18 performs color conversion processing on the image data received from the information processing terminal using color conversion profiles for the spot color and CMYK colors, generates a print job represented by data on CMYK colors and spot colors, and outputs it to the output unit 10H.

[0043] Next, the processing performed in the image forming apparatus 10 according to the first embodiment configured as described above will be described. Fig. 4 is a flow chart showing an example of a specific processing flow performed in the image forming apparatus 10 according to the present embodiment. The processing in Fig. 4 starts when an instruction to create a color conversion profile is given in the image forming apparatus 10.

[0044] In step S100, the reception unit 12 displays, on the display 10F, a selection screen for selecting the conditions for creating a color transformation profile.

[0045] In step S102, the reception unit 12 determines whether or not a selection of an option for the creation conditions is accepted on the selection screen by a user operation. If the reception unit 12 accepts a selection of an option for the creation conditions on the selection screen by a user operation, the process proceeds to step S104.

[0046] In step S104, the profile creation unit 14 creates a color transformation profile that receives values ​​in the device-independent color system according to the selected creation conditions and outputs values ​​of each color in the second device-dependent color system.

[0047] The created color conversion profiles for the spot color and CMYK plates are stored in the profile storage unit 16, and the process ends.

[0048] As described above, when creating a color conversion profile that outputs values ​​of a device-dependent color system including spot colors from values ​​of a device-independent color system, multiple options for creation conditions of the color conversion profile, which have different balances of multiple effects including tonality and color reproducibility, are displayed in a selectable manner, allowing the user to select the balance of multiple effects including tonality and color reproducibility.

[0049] Furthermore, since the creation accuracy of the color conversion profile for spot colors is low, the user can select the balance between gradation and color reproducibility depending on the selection of the color to be smoothed in the color conversion profile.

[0050] In the above embodiment, the balance display area 24 on the display shows the balance between the gradation and color reproducibility when smoothing is performed, but the present invention is not limited to this and may show the balance between the gradation and color reproducibility when smoothing is not performed. In this case, it is sufficient to show that the gradation is low but the color reproducibility is high.

[0051] [Second embodiment] Next, an image forming apparatus according to a second embodiment will be described. Note that since the image forming apparatus according to the second embodiment has the same configuration as that of the first embodiment, the same reference numerals are used and the description thereof will be omitted.

[0052] The second embodiment differs from the first embodiment in that there are multiple spot colors in the device-dependent color system, and that the options for colors to be smoothed as a creation condition include a combination of spot colors and K color.

[0053] The reception unit 12 of the image forming apparatus 10 of the second embodiment displays a selection screen for selecting the conditions for creating a color conversion profile on the display 10F. As shown in Fig. 5, this selection screen includes options 20A and 20B for selecting whether or not to smooth the color conversion profile, options 22A, 22B, and 22C for selecting whether to smooth all colors of the device-dependent color system (for example, CMYK colors and special colors (fluorescent pink and green)), whether to smooth only the special colors, or whether to smooth only the special colors and K, options 26A, 26B, and 26C for selecting whether to smooth all the special colors, only the fluorescent pink color, or only the green color when smoothing only the special colors, a balance display area 24 that displays the balance between gradation and color reproducibility for the options 22A, 22B, and 22C, and a slider bar 26. 5 shows an example in which, when all colors of the device-dependent color system are smoothed, high gradation is obtained but color reproducibility is low, when only spot colors of the device-dependent color system are smoothed, relatively high gradation and color reproducibility are obtained, and when only spot colors of the device-dependent color system and K color are smoothed, relatively high gradation and color reproducibility are obtained. Also, when comparing the case in which only spot colors of the device-dependent color system are smoothed and the case in which spot colors of the device-dependent color system and K color are smoothed, an example is shown in which it is displayed that the case in which only spot colors of the device-dependent color system and K color are smoothed results in higher gradation and lower color reproducibility.

[0054] In addition, FIG. 5 above shows an example in which option 20A for selecting to perform smoothing on the color conversion profile, option 22B for selecting to perform smoothing only on the spot colors of the device-dependent color system, and option 26B for selecting to perform smoothing only on fluorescent pink are selected, and a medium level of smoothing strength is selected using slider bar 26.

[0055] The profile creation unit 14 creates a color conversion profile that takes values ​​in a device-independent color system as input and outputs values ​​of each color in a second device-dependent color system, including spot colors (fluorescent pink, green), according to the selected creation conditions.

[0056] Specifically, the profile creation unit 14 sets each of the values ​​in the device-dependent color system corresponding to the values ​​in the first device-dependent color system of each lattice point in the input color gamut of the information processing terminal as a value in the target device-dependent color system.

[0057] If the creation condition is set to perform smoothing only on all spot colors, the profile creation unit 14 performs the following process.

[0058] First, the profile creation unit 14 calculates the values ​​of all the spot colors (fluorescent pink, green) in the second device-dependent color system for each of the target values ​​in the device-dependent color system. The profile creation unit 14 changes the value of fluorescent pink so as to smooth the change in the value of fluorescent pink in the second device-dependent color system in response to the change in the value in the device-independent color system. The profile creation unit 14 changes the value of green so as to smooth the change in the value of green in the second device-dependent color system in response to the change in the value in the device-independent color system. The profile creation unit 14 calculates the values ​​of CMYK colors in the second device-dependent color system for each of the target values ​​in the device-independent color system based on the changed value of fluorescent pink and the changed value of green. Based on the calculation results of the changed fluorescent ink color value, the changed green color value, and the CMYK color value, the profile creation unit 14 creates color conversion profiles for the fluorescent pink plate, the green plate, and the CMYK plate, which take the device-independent color system values ​​as input and output the changed fluorescent ink color value, the changed green color value, and the CMYK color values ​​of the second device-dependent color system.

[0059] Furthermore, when the creation condition is selected to perform smoothing only on fluorescent pink among the special colors, the profile creation unit 14 performs the following process.

[0060] First, the profile creation unit 14 calculates the fluorescent pink value of the second device-dependent color system for each of the target values ​​of the device-dependent color system. The profile creation unit 14 changes the fluorescent pink value so as to smooth the change in the fluorescent pink value of the second device-dependent color system relative to the change in the device-independent color system value. The profile creation unit 14 calculates the green and CMYK color values ​​of the second device-dependent color system for each of the target values ​​of the device-independent color system based on the changed fluorescent pink value. The profile creation unit 14 creates color conversion profiles for the fluorescent pink plate, the green plate, and the CMYK plate that input the device-independent color system values ​​and output the fluorescent pink value, the green color value, and the CMYK color value of the second device-dependent color system based on the calculation results of the changed fluorescent pink value, the green color value, and the CMYK color value.

[0061] Furthermore, when the creation conditions include selecting smoothing only for green among the spot colors, the profile creation unit 14 creates a color conversion profile such that smoothing is performed only on green, in the same way as when smoothing is selected only on fluorescent pink.

[0062] Furthermore, when smoothing is selected as a creation condition only for the spot color and K color, the profile creation unit 14 performs the following process.

[0063] First, the profile creation unit 14 calculates the values ​​of all the feature colors in the second device-dependent color system for each of the values ​​in the target device-dependent color system. The profile creation unit 14 changes the value of fluorescent pink so as to smooth the change in the value of fluorescent pink in the second device-dependent color system with respect to the change in the value of the device-independent color system. The profile creation unit 14 changes the value of green so as to smooth the change in the value of green in the second device-dependent color system with respect to the change in the value of the device-independent color system. The profile creation unit 14 calculates the value of K in the second device-dependent color system based on the changed value of fluorescent pink and the changed value of green for each of the values ​​in the target device-independent color system. The profile creation unit 14 changes the value of K so as to smooth the change in the value of K in the second device-dependent color system with respect to the change in the value of the device-independent color system. The profile creation unit 14 calculates the CMY color values ​​of the second device-dependent color system based on the calculation results of the changed fluorescent pink value, the changed green value, and the K value for each of the target device-independent color system values. Based on the calculation results of the changed fluorescent pink value, the changed green value, the K value, and the CMY color value, the profile creation unit 14 creates color conversion profiles for the fluorescent pink plate, the green plate, and the CMYK plate that input the device-independent color system values ​​and output the changed fluorescent pink value, the changed green value, the K value, and the CMY color value of the second device-dependent color system.

[0064] Furthermore, when smoothing of all colors is selected as a creation condition, the profile creation unit 14 creates a color conversion profile so as to smooth all colors of the second device-dependent color system using the method described in the first embodiment above.

[0065] Furthermore, if no smoothing is selected as a creation condition, the profile creation unit 14 creates a color transformation profile without smoothing using the method described in the first embodiment.

[0066] Other configurations and operations of the image forming apparatus 10 according to the second embodiment are similar to those of the first embodiment, and therefore will not be described.

[0067] As described above, when creating a color conversion profile that outputs values ​​of a device-dependent color system including multiple spot colors from values ​​of a device-independent color system, multiple options for creation conditions of the color conversion profile, which have different balances of multiple effects including tonality and color reproducibility, are displayed in a selectable manner, allowing the user to select the balance of multiple effects including tonality and color reproducibility.

[0068] In the first and second embodiments, the device-independent color system is L * a * b * Although the above description has been given taking a spatial color system as an example, the present invention is not limited to this, and other device-independent color systems may also be used.

[0069] In addition, the second device-dependent color system is described as including spot colors and CMYK colors, but is not limited to this, and colors other than the spot colors may be colors other than CMYK colors. In addition, in this embodiment, fluorescent pink and green are given as spot colors, but are not limited to these, and may be other spot colors, such as violet and orange.

[0070] Although the present invention has been described with reference to an image forming apparatus, the present invention is not limited to this example and may be applied to an information processing apparatus such as a smartphone or a computer.

[0071] In addition, in the above embodiment, CPU10A has been described as an example of a processor, but the term "processor" refers to a processor in a broad sense, and includes general-purpose processors (e.g., CPU: Central Processing Unit, etc.) and dedicated processors (e.g., GPU: Graphics Processing Unit, ASIC: Application Specific Integrated Circuit, FPGA: Field Programmable Gate Array, programmable logic device, etc.).

[0072] In addition, the operations of the processor in each of the above embodiments may be performed not only by one processor, but also by multiple processors located at physically separate locations working together. Furthermore, the order of the operations of the processor is not limited to the order described in each of the above embodiments, and may be changed as appropriate.

[0073] The processes performed by the image forming apparatus 10 according to the above embodiment may be processes performed by software, hardware, or a combination of both. The processes performed by the image forming apparatus 10 may be stored as a program in a storage medium and distributed.

[0074] Furthermore, the present invention is not limited to the above, and it goes without saying that various modifications can be made without departing from the spirit and scope of the present invention. [Explanation of symbols]

[0075] 10 Image forming device 10A CPU 10F Display 12 Reception 14 Profile Creation Section 16 Profile storage section 18 Color conversion section 20A, 20B, 22A, 22B, 26A, 26B options 24 Balance display area 26 Slider Bar

Claims

1. A processor is provided. The processor, a color conversion profile outputting a color space value of a device-independent color system and a color conversion profile outputting a color space value of each color of a device-dependent color system including CMYK colors and spot colors different from the CMYK colors, the color conversion profile outputting a color space value of each color of the device-dependent color system including CMYK colors and spot colors different from the CMYK colors, the color conversion profile outputting a color space value of each color of the device-dependent color system including CMYK colors and spot colors different from the CMYK colors, the color conversion profile outputting a color space value of each color of the device-dependent color system including CMYK colors and a spot color space value of each color of the device-dependent color system including CMYK colors and the spot colors ... The color conversion profile is created based on the creation conditions accepted as the options. An information processing device, The processor, As options for the creation conditions, an option of selecting all colors of the device-dependent color system as the target colors to be smoothed so that the change in the value of the target color in the device-dependent color system becomes smooth when the value of the color space of the device-independent color system changes in the color conversion profile; an option for selecting a spot color of the device-dependent color system as the target color to be smoothed; and displaying information indicating a combination of high gradation and high color reproducibility under the creation conditions together with the options; When an option to select all colors of the device-dependent color system as the target colors to be smoothed is received, calculating color values ​​of all colors in the device-dependent color system corresponding to each value of a color space of a target device-independent color system, and performing the smoothing on the calculated color values ​​of all colors in the device-dependent color system; A color conversion profile is created in which the values ​​in the color space of the device-independent color system are input, and the values ​​of each color of all colors in the device-dependent color system after smoothing are output. When an option to select a spot color of the device-dependent color system as the target color to be smoothed is received, calculating spot color values ​​of the device-dependent color system corresponding to each color space value of the target device-independent color system, and performing the smoothing on the calculated spot color values ​​of the device-dependent color system; calculating values ​​of each of the CMYK colors in the device-dependent color system corresponding to each of the color space values ​​of the target device-independent color system based on values ​​of the spot colors in the changed device-dependent color system corresponding to each of the color space values ​​of the target device-independent color system; a color conversion profile is created that receives a color space value of the device-independent color system as an input, and outputs a smoothed value of the spot color of the device-dependent color system and a value of each color of the CMYK color of the device-dependent color system; The device is an information processing apparatus that is an image forming apparatus that forms an image on a recording medium using CMYK colors and the spot colors.

2. The processor, 2. The information processing apparatus according to claim 1, further comprising: displaying the smoothing strength in a selectable manner.

3. a color conversion profile outputting a color space value of a device-independent color system and a color conversion profile outputting a color space value of each color of a device-dependent color system including CMYK colors and spot colors different from the CMYK colors, the color conversion profile outputting a color space value of each color of the device-dependent color system including CMYK colors and spot colors different from the CMYK colors, the color conversion profile outputting a color space value of each color of the device-dependent color system including CMYK colors and spot colors different from the CMYK colors, the color conversion profile outputting a color space value of each color of the device-dependent color system including CMYK colors and a spot color space value of each color of the device-dependent color system including CMYK colors and the spot colors ... The color conversion profile is created based on the creation conditions accepted as the options. Including, As options for the creation conditions, an option of selecting all colors of the device-dependent color system as the target colors to be smoothed so that the change in the value of the target color in the device-dependent color system becomes smooth when the value of the color space of the device-independent color system changes in the color conversion profile; an option for selecting a spot color of the device-dependent color system as the target color to be smoothed; and displaying information indicating a combination of high gradation and high color reproducibility under the creation conditions together with the options; When an option to select all colors of the device-dependent color system as the target colors to be smoothed is received, calculating color values ​​of all colors in the device-dependent color system corresponding to each value of a color space of a target device-independent color system, and performing the smoothing on the calculated color values ​​of all colors in the device-dependent color system; A color conversion profile is created in which the values ​​in the color space of the device-independent color system are input, and the values ​​of each color of all colors in the device-dependent color system after smoothing are output. When an option to select a spot color of the device-dependent color system as the target color to be smoothed is received, calculating spot color values ​​of the device-dependent color system corresponding to each color space value of the target device-independent color system, and performing the smoothing on the calculated spot color values ​​of the device-dependent color system; calculating values ​​of each of the CMYK colors in the device-dependent color system corresponding to each of the color space values ​​of the target device-independent color system based on values ​​of the spot colors in the changed device-dependent color system corresponding to each of the color space values ​​of the target device-independent color system; a color conversion profile is created that receives a color space value of the device-independent color system as an input, and outputs a smoothed value of the spot color of the device-dependent color system and a value of each color of the CMYK color of the device-dependent color system; The device is an image forming apparatus that forms an image on a recording medium using CMYK colors and the spot colors. An information processing program that causes a computer to execute

Images