JP2013089119A - Printer driver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printer driver for enabling the user of a computer to designate a range in which the colors of pixels are adjusted in an image.SOLUTION: A printer driver makes a PC execute: a step of accepting the designation of a reference point 22g in an image; a step of accepting the designation of a first range 22h on image as a range surrounding the reference point 22g in the image; a step of accepting the designation of a second range 22i on image as a range excluding the first range 22h on image as a range surrounding the first range 22h on image in the image; and a pixel color adjustment step of adjusting the colors of pixels in the image. The pixel color adjustment step includes: adjusting the colors of the pixels in the first range 22h on image with the amount of adjustment of colors from the reference color to candidate colors; and adjusting the colors of the pixels in the second range 22i on image such that the amount of adjustment of the colors are gradually decreased from the first range 22h side on image toward an opposite side to the first range 22h on image.

Description

  The present invention relates to a printer driver for controlling an image forming apparatus.

  2. Description of the Related Art Conventionally, as a technique for adjusting the color of a pixel in an image, a technique for adjusting the color of a pixel in an image by adjusting a color in a color space in accordance with a user instruction is known (for example, Patent Document 1). 2).

JP 2007-143077 A Japanese Patent No. 4438741

  However, in the conventional technology, there is a problem that the color of the pixel in the range not intended by the user in the image is adjusted.

  SUMMARY An advantage of some aspects of the invention is that it provides a printer driver that allows a user of a computer to designate a range for adjusting a pixel color in an image.

  The printer driver of the present invention has a reference color receiving step for receiving designation of a reference color to be adjusted, and color adjustments when it is assumed that color adjustment has been performed on the reference color received by the reference color receiving step. A candidate color printing step for causing the image forming apparatus to print a plurality of types of candidate colors that are candidates for the reference color after adjustment, and designation of one candidate color from the plurality of types of the candidate colors printed by the candidate color printing step. A candidate color receiving step for accepting, a reference point accepting step for accepting designation of a reference point in the image, and designation of a first range on the image that is a range surrounding the reference point accepted by the reference point accepting step in the image The image first range receiving step to be received and the image received by the image first range receiving step. An image upper second range accepting step for accepting designation of an image upper second range which is a range surrounding the upper first range in the image and excluding the image upper first range, and adjusting a pixel color in the image A pixel color adjustment step to be executed by the computer, wherein the pixel color adjustment step is configured to change the color of the pixel within the first range on the image received by the first range reception step on the image to the reference color reception step. Is adjusted according to the amount of color adjustment from the reference color received by the candidate color receiving step to the candidate color received by the candidate color receiving step, and within the second range on the image received by the second on-image range receiving step. The color of the pixel is adjusted so that the amount of color adjustment gradually decreases from the first range on the image toward the opposite side of the first range on the image. Characterized in that it is a step for.

  With this configuration, the computer that executes the printer driver of the present invention receives the designation of the first range on the image and the second range on the image, and sets the colors of the pixels in the first range on the image and the second range on the image. Since the adjustment is performed, it is possible to allow the user to designate a range in which the pixel color is adjusted in the image. In particular, the computer that executes the printer driver of the present invention not only accepts the designation of the first range on the image for adjusting the pixel color by the color adjustment amount from the reference color to the candidate color, but also on the first range side on the image. Since the designation of the second range on the image for adjusting the color of the pixels so that the color adjustment amount gradually decreases toward the opposite side of the first range on the image from Compared to a configuration that accepts designation of only the range in which the pixel color is adjusted according to the color adjustment amount to the candidate color, the possibility that the color in the image changes unnaturally inside and outside the range in which the pixel color is adjusted is suppressed. be able to.

  Further, the printer driver of the present invention causes the computer to execute a color space range receiving step for receiving designation of a range on the color space, which is a range surrounding the reference color received in the reference color receiving step in a color space, In the pixel color adjustment step, the color space upper range accepted by the color space upper range acceptance step among the colors of the pixels in the first image upper range accepted by the image first range acceptance step. Are adjusted by the amount of color adjustment from the reference color received in the reference color receiving step to the candidate color received in the candidate color receiving step, and received in the second on-image range receiving step. Of the color of the pixel in the second range on the image, the range reception step on the color space. Adjusting the color within the range on the color space received by the color space so that the amount of color adjustment gradually decreases from the first range on the image toward the opposite side of the first range on the image. There may be.

  With this configuration, the computer that executes the printer driver of the present invention can specify the pixel whose color is to be adjusted not only by the range in the image but also by the range in the color space.

  The printer driver of the present invention can allow a computer user to specify a range for adjusting the pixel color in an image.

1 is a block diagram of an image forming system according to an embodiment of the present invention. It is a block diagram of PC shown in FIG. It is explanatory drawing of the reference | standard color shown in FIG. 2, and the range on color space. It is explanatory drawing of the reference point shown in FIG. 2, the 1st range on an image, and the 2nd range on an image. FIG. 2 is a block diagram of the MFP shown in FIG. 1. 6 is a flowchart of the operation of the PC shown in FIG. 1 when performing partial color adjustment. It is a flowchart of the initial process shown in FIG. 7 is a flowchart of partial color adjustment first screen display processing shown in FIG. 6. It is a figure which shows the partial color adjustment 1st screen displayed on the display part shown in FIG. 7 is a flowchart of a reference color acceptance process shown in FIG. FIG. 7 is a flowchart of a color space range acceptance process shown in FIG. 6. FIG. It is a flowchart of the reference point reception process shown in FIG. It is a flowchart of the 1st range reception process on an image shown in FIG. It is a flowchart of the 2nd range reception process on an image shown in FIG. It is a flowchart following the flowchart shown in FIG. It is a flowchart of the partial color adjustment 2nd screen display process shown in FIG. It is a figure which shows the partial color adjustment 2nd screen displayed on the display part shown in FIG. FIG. 16 is a flowchart of a test print process shown in FIG. 15. (A) It is a figure which shows the example of the patch printed by MFP shown in FIG. 1 when a candidate color is produced | generated by one parameter among hue, saturation, and lightness. FIG. 2B is a diagram illustrating an example of a patch printed by the MFP illustrated in FIG. 1 when a candidate color is generated with two parameters of hue, saturation, and brightness. FIG. 16 is a flowchart of additional parameter test print processing shown in FIG. 15. FIG. FIG. 16 is a flowchart of additional parameter patch cancellation processing shown in FIG. 15. FIG. It is a flowchart of the color adjustment process shown in FIG. It is a figure for demonstrating the adjustment amount for every pixel computed in the color adjustment process shown in FIG. It is a figure which shows the adjustment amount applied to a pixel in the color adjustment process shown in FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  First, the configuration of the image forming system according to the present embodiment will be described.

  FIG. 1 is a block diagram of an image forming system 10 according to the present embodiment.

  As illustrated in FIG. 1, the image forming system 10 includes a PC (Personal Computer) 20 as a computer and an MFP (Multifunction Peripheral) 40 as an image forming apparatus. The PC 20 and the MFP 40 are communicably connected to each other via a network 11 such as a LAN (Local Area Network) or the Internet.

  FIG. 2 is a block diagram of the PC 20.

  As shown in FIG. 2, the PC 20 includes a control unit 21 that controls the entire PC 20, a storage unit 22 that is a storage device such as an HDD (Hard Disk Drive) that stores various types of data, A network that communicates via the network 11 with an operation unit 23 that is an input device such as a keyboard and a mouse for inputting operations, and a display unit 24 that is a display device such as an LCD (Liquid Crystal Display) that displays various information. And a network communication unit 25 which is a communication device.

  The control unit 21 includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory) that stores programs and various data in advance, and a RAM (Random Access Memory) used as a work area of the CPU. ing. The CPU is configured to execute a program stored in the ROM or the storage unit 22.

  The storage unit 22 stores a printer driver 22 a for controlling the MFP 40. The storage unit 22 can store image data 22d including coordinate data 22b of each pixel of the image and RGB data 22c of each pixel of the image. The storage unit 22 includes a reference color 22e to be adjusted, a color space upper range 22f that surrounds the reference color 22e in the Lab color space, a reference point 22g in the image, and a range that surrounds the reference point 22g in the image. The RGB value of the RGB data 22c is defined as the first range 22h on the image, the second range 22i on the image that is the range surrounding the first range 22h on the image and excluding the first range 22h on the image. Lab data 22j converted into values and information for printing patches of candidate colors that are candidates for reference colors after color adjustment on the assumption that color adjustment has been performed on the reference color 22e. One patch information 22k and second patch information 22l can be stored. The coordinate data 22b, the reference point 22g, the first on-image range 22h, and the second on-image range 22i are represented by the coordinates on the image. The RGB data 22c is represented by RGB values. The reference color 22e, the color space upper range 22f, and the Lab data 22j are represented by Lab values.

  The printer driver 22a may be installed in the PC 20 at the manufacturing stage of the PC 20, or may be additionally installed on the PC 20 from a storage medium such as a CD (Compact Disk) and a DVD (Digital Versatile Disk) or from the network 11. May be.

  The control unit 21 executes the printer driver 22a stored in the storage unit 22 so as to receive the specification of the reference color to be adjusted and the reference color received by the reference color receiving unit 21a. In this case, the candidate color printing unit 21b that causes the MFP 40 to print a plurality of types of candidate colors that are candidates for the reference color after the color adjustment when the color adjustment is performed is performed. A candidate color receiving unit 21c that receives designation of one candidate color from candidate colors, a reference point receiving unit 21d that receives designation of a reference point in an image, and an image that is a range surrounding the reference point received by the reference point receiving unit 21d in the image Received by the upper first range receiving unit 21e and the upper first range receiving unit 21e for accepting designation of the upper first range A second on-image range accepting unit 21f that accepts designation of a second on-image range that is a range surrounding the first on-image range in the image and excluding the first on-image range, and a pixel that adjusts the color of the pixel in the image The color adjustment unit 21g and the color space range receiving unit 21h that receives designation of a range on the color space that is a range surrounding the reference color received by the reference color receiving unit 21a in the Lab color space.

  FIG. 3 is an explanatory diagram of the reference color 22e and the color space upper range 22f.

As shown in FIG. 3, the color space upper range 22f is a range including the reference color 22e in the Lab color space. The color space upper range 22f can be expressed by the following equation (1). In Equation 1, ΔE is a color difference that can be specified by a color space range specifying slider 54e described later. L ₁ , C ₁ , and H ₁ are the brightness, saturation, and hue of the reference color 22e in the Lab color space, respectively. L ₂ , C ₂ , and H ₂ are the brightness, saturation, and hue of the pixels that form the boundary of the upper color space range 22f in the Lab color space.

  FIG. 4 is an explanatory diagram of the reference point 22g, the first image range 22h, and the second image range 22i.

As shown in FIG. 4, the first range 22h on the image is a range surrounded by a circle whose radius is a predetermined distance and whose center is the reference point 22g. The image second range 22i is a first range on the image out of a range surrounded by a circle having a radius that is longer than the radius of the image first range 22h and centered on the reference point 22g. This is the range excluding 22h. The first range 22h on the image can be expressed by the following formula 2. In Equation 2, l is a value that can be specified by an on-image first range specifying slider 55b, which will be described later, and is the radius of a circle that forms the boundary of the on-image first range 22h in the image. x ₁ and y ₁ are the x coordinate and y coordinate of the reference point 22g on the xy plane of the image, respectively. x ₂ and y ₂ are the x coordinate and y coordinate of the pixels forming the boundary of the first range 22h on the image on the xy plane of the image, respectively. The first range 22h on the image has been described, but the same applies to the second range 22i on the image.

  FIG. 5 is a block diagram of the MFP 40.

  As shown in FIG. 5, the MFP 40 includes a control unit 41 that controls the entire MFP 40, a storage unit 42 that is a storage device such as an EEPROM (Electrically Erasable Programmable Read Only Memory) and HDD that stores various types of data, An operation unit 43 that is an input device such as buttons for inputting various operations by a user, a display unit 44 that is a display device such as an LCD that displays various information, and a printing device that executes printing on paper. A printer 45, a scanner 46 that is a reading device that reads an image from a document, a fax communication unit 47 that is a fax device that performs fax communication via a communication line such as a public telephone line, and a network communication device that performs communication via the network 11 And a network communication unit 48 which is a network.

  The control unit 41 includes, for example, a CPU, a ROM that stores programs and various data in advance, and a RAM that is used as a work area for the CPU. The CPU executes a program stored in the ROM or the storage unit 42.

  Next, the operation of the PC 20 will be described.

  The control unit 21 of the PC 20 can cause the MFP 40 to print an image in accordance with an instruction from the user by executing the printer driver 22a. A user who sees an image printed on a sheet by the MFP 40 may, for example, desire to change the color of at least a part of the image and cause the MFP 40 to print the image again. When an instruction to adjust the color of at least a part of the image (hereinafter referred to as “partial color adjustment”) is input from the operation unit 23, the control unit 21 executes the process shown in FIG. 6 by executing the printer driver 22a. Start. The partial color adjustment instruction includes designation of image data 22d on the storage unit 22 as image data to be subjected to partial color adjustment.

  FIG. 6 is a flowchart of the operation of the PC 20 when executing partial color adjustment.

  As shown in FIG. 6, the control unit 21 of the PC 20 executes the initial process shown in FIG. 7 (S101).

  FIG. 7 is a flowchart of the initial process shown in FIG.

  As illustrated in FIG. 7, the control unit 21 sets a default reference color, a color space range, a reference point, an image first range, and an image second range as a reference color 22e, a color space range 22f, and a reference point. 22g, the first on-image range 22h, and the second on-image range 22i are written in the storage unit 22 (S121).

  Next, the control unit 21 generates Lab data obtained by converting the RGB values of the RGB data 22c of the image data 22d specified as the image data to be subjected to partial color adjustment into Lab values (S122).

  Next, the control unit 21 writes the Lab data generated in S122 to the storage unit 22 as Lab data 22j (S123).

  When the process of S123 is completed, the control unit 21 ends the initial process shown in FIG.

  As shown in FIG. 6, when the initial process of S101 is completed, the control unit 21 executes the partial color adjustment first screen display process shown in FIG. 8 (S102).

  FIG. 8 is a flowchart of the partial color adjustment first screen display process shown in FIG.

  As shown in FIG. 8, the control unit 21 causes the display unit 24 to display the partial color adjustment first screen 50 shown in FIG. 9, which is a screen for executing partial color adjustment (S141).

  FIG. 9 is a diagram showing a partial color adjustment first screen 50 displayed on the display unit 24.

  In FIG. 9, the partial color adjustment first screen 50 is a pre-adjustment image preview area 51 for displaying the color adjustment target image in a state before the color adjustment, and the color adjustment of the color adjustment target image. An adjustment target pixel display area 52 for displaying the target pixel, a reference color display area 53 for displaying the reference color to be adjusted, and a GUI (Graphical User Interface) for specifying the color to be adjusted are displayed. An adjustment target color specification GUI area 54 to be adjusted, an adjustment target range specification GUI area 55 for displaying a GUI for specifying a color adjustment target range in an image to be adjusted, and specification of a pixel to be adjusted Next button 56, which is a button for accepting the above, and a cancel button 57, which is a button for canceling the execution of partial color adjustment.

  The adjustment target color designation GUI area 54 is an icon for making a reference color designation cursor appear as a cursor for directly designating the reference color to be adjusted on the image displayed in the pre-adjustment image preview area 51. A color designation cursor icon 54a, an R value spin box 54b that is a spin box for designating an R value of a reference color to be adjusted by direct input of an R value, and a reference of an adjustment target by direct input of a G value A G value spin box 54c which is a spin box for designating the G value of the color, and a B value spin box 54d which is a spin box for designating the B value of the reference color to be adjusted by direct input of the B value; A color space range specifying slider 54e that is a slider for specifying the color space range that is the range of the color to be adjusted.The color space range designation slider 54e is a GUI for designating the color difference ΔE that determines the boundary of the color space range in the Lab space.

  The adjustment target range specification GUI area 55 is a reference point specification cursor that is an icon for causing a reference point specification cursor to appear on the image displayed in the pre-adjustment image preview area 51. An icon 55a, an image first range designation slider 55b that is a slider for designating a first range on the image, and an image second range designation slider 55c that is a slider for designating the second range on the image. Is included. The image first range designation slider 55b is a GUI for designating the radius of a circle forming the boundary of the image first range 22h (see FIG. 4) in the image. The image second range designation slider 55c designates the radius of a circle forming a boundary different from the boundary of the image first range 22h among the boundaries of the image second range 22i (see FIG. 4) in the image. This is the GUI.

  As shown in FIG. 8, after executing S141, the control unit 21 generates a preview image for display in the pre-adjustment image preview area 51 and the adjustment target pixel display area 52 based on the image data 22d (S142). ).

  Next, the control unit 21 displays the preview image generated in S142 in both the pre-adjustment image preview area 51 and the adjustment target pixel display area 52 (S143).

  Next, the control unit 21 displays the first image range 22h and the second image range 22i in the adjustment target pixel display area 52 (S144). In the adjustment target pixel display region 52 shown in FIG. 9, the first image range 22h and the second image range 22i include a circle that forms a boundary between the first image range 22h and the second image range 22i. Among the boundaries, a circle forming a boundary different from the boundary of the first range 22h on the image is displayed by a broken line.

  Next, the control unit 21 detects pixels that are in the color space range 22f and within the first image range 22h or the second image range 22i in the image represented by the image data 22d (S145). ). Here, the control unit 21 can detect pixels in the color space range 22f in the image represented by the image data 22d based on the Lab data 22j and the color space range 22f. Further, the control unit 21 detects pixels in the first image range 22h in the image represented by the image data 22d based on the coordinate data 22b of the image data 22d and the first image range 22h. Can do. Moreover, the control part 21 can detect the pixel in the image 2nd range 22i among the images represented by the image data 22d based on the coordinate data 22b and the image 2nd range 22i.

  Next, the control unit 21 displays the pixels detected in S145 in the adjustment target pixel display area 52 (S146). In the adjustment target pixel display area 52 shown in FIG. 9, the image represented by the image data 22d is in the color space upper range 22f and in the first image upper range 22h or the second image upper range 22i. Pixels that are are indicated by hatching.

  Next, the control unit 21 displays the reference color 22e in the reference color display region 53 by filling the reference color display region 53 with the reference color 22e stored in the storage unit 22 (S147).

  Next, the control unit 21 changes the display of the R value spin box 54b, the G value spin box 54c, and the B value spin box 54d based on the reference color 22e (S148).

  Next, the control unit 21 changes the display of the color space range designation slider 54e based on the color space range 22f stored in the storage unit 22 (S149).

  Next, the control unit 21 changes the display of the on-image first range designation slider 55b based on the on-image first range 22h stored in the storage unit 22 (S150).

  Next, the control unit 21 changes the display of the on-image second range designation slider 55c based on the on-image second range 22i stored in the storage unit 22 (S151).

  When the process of S151 is completed, the control unit 21 ends the partial color adjustment first screen display process shown in FIG.

  As shown in FIG. 6, when the partial color adjustment first screen display process in S102 is completed, the control unit 21 determines whether or not a reference color change is instructed via the operation unit 23 (S103). Here, as a method of changing the reference color, a pixel is specified on the image displayed in the pre-adjustment image preview area 51 by the reference color specifying cursor that appears when the reference color specifying cursor icon 54a is pressed. Thus, the color of the pixel is designated as the reference color, and the RGB value of the reference color is directly input to the R value spin box 54b, the G value spin box 54c, and the B value spin box 54d. Is specified. When the reference color is designated by the reference color designation cursor, the control unit 21 converts the RGB value of the reference color designated by the reference color designation cursor into the R value spin box 54b, the G value spin box 54c, and the B value spin box. 54d.

  If the control unit 21 determines in S103 that the change of the reference color is instructed via the operation unit 23, the control unit 21 executes the reference color reception process shown in FIG. 10 (S104).

  FIG. 10 is a flowchart of the reference color acceptance process shown in FIG.

  As shown in FIG. 10, the reference color receiving unit 21a of the control unit 21 is instructed by a reference color designation cursor and a change instruction by any of the R value spin box 54b, the G value spin box 54c, and the B value spin box 54d. The RGB value of the designated reference color is converted into a Lab value (S161).

  Next, the reference color receiving unit 21a writes the reference color converted into the Lab value into the storage unit 22 as a new reference color 22e (S162).

  Next, the color space range accepting unit 21h of the control unit 21 sets a new color space range based on the reference color 22e and the distance in the Lab space currently designated by the color space range designation slider 54e. Calculate (S163).

  Next, the color space range receiving unit 21h writes the color space range calculated in S163 into the storage unit 22 as a new color space range 22f (S164).

  Next, the control unit 21 displays the reference color 22e in the reference color display area 53 by filling the reference color display area 53 with the reference color 22e (S165).

  Next, the control unit 21 is within the range on the color space 22f of the image represented by the image data 22d, and is within the first range 22h on the image or the second range 22i on the image stored in the storage unit 22. Are detected (S166).

  Next, the control unit 21 displays the pixels detected in S166 in the adjustment target pixel display area 52 as in the process of S146 (S167).

  When the process of S167 is finished, the control unit 21 finishes the reference color acceptance process shown in FIG.

  As shown in FIG. 6, the control unit 21 determines in S103 that the change of the reference color is not instructed via the operation unit 23 or ends the reference color reception process of S104 via the operation unit 23. It is determined whether or not a change in the color space range has been instructed (S105). Here, the change in the color space range is executed by operating the color space range designation slider 54e.

  If it is determined in S105 that the change in the color space range is instructed via the operation unit 23, the control unit 21 executes the color space range reception process shown in FIG. 11 (S106).

  FIG. 11 is a flowchart of the color space range acceptance process shown in FIG.

  As shown in FIG. 11, the on-color space range receiving unit 21h of the control unit 21 is on the Lab space currently designated by the reference color 22e stored in the storage unit 22 and the on-color space range designation slider 54e. Based on the distance, a new range on the color space is calculated (S181).

  Next, the color space range receiving unit 21h writes the color space range calculated in S181 into the storage unit 22 as a new color space range 22f (S182).

  Next, the control unit 21 is within the range on the color space 22f of the image represented by the image data 22d, and is within the first range 22h on the image or the second range 22i on the image stored in the storage unit 22. Is detected (S183).

  Next, the control unit 21 displays the pixels detected in S183 in the adjustment target pixel display area 52 as in the process of S146 (S184).

  When the process of S184 is completed, the control unit 21 ends the color space range reception process shown in FIG.

  As illustrated in FIG. 6, when the control unit 21 determines in S105 that the change of the color space range is not instructed via the operation unit 23 or ends the color space range reception process in S106, the operation unit It is determined whether or not a change of the reference point is instructed via the terminal 23 (S107). Here, the reference point is changed by specifying the reference point on the image displayed in the pre-adjustment image preview area 51 by the reference point specifying cursor that appears when the reference point specifying cursor icon 55a is pressed. Is executed by.

  If the control unit 21 determines in S107 that the change of the reference point has been instructed via the operation unit 23, the control unit 21 executes the reference point receiving process shown in FIG. 12 (S108).

  FIG. 12 is a flowchart of the reference point reception process shown in FIG.

  As shown in FIG. 12, the reference point receiving unit 21d of the control unit 21 writes the reference point designated by the change instruction by the reference point designation cursor into the storage unit 22 as a new reference point 22g (S201).

  Next, the first on-image range receiving unit 21e of the control unit 21 creates a new first on-image basis based on the reference point 22g and the distance on the image currently designated by the first on-image range designation slider 55b. The range is calculated (S202).

  Next, the first image upper range receiving unit 21e writes the first image upper range calculated in S202 to the storage unit 22 as a new first image upper range 22h (S203).

  Next, the second on-image range receiving unit 21f of the control unit 21 performs a new second on-image basis based on the reference point 22g and the distance on the image currently designated by the second on-image range designation slider 55c. The range is calculated (S204).

  Next, the second image upper range receiving unit 21f writes the second upper image range calculated in S204 to the storage unit 22 as a new second upper image range 22i (S205).

  Next, the control unit 21 displays the first on-image range 22h and the second on-image range 22i in the adjustment target pixel display area 52 in the same manner as the processing in S144 (S206).

  Next, the control unit 21 within the range 22f on the color space stored in the storage unit 22 among the images represented by the image data 22d, the first range 22h on the image or the second range 22i on the image. Is detected (S207).

  Next, the control unit 21 displays the pixels detected in S207 in the adjustment target pixel display area 52 as in the process of S146 (S208).

  When the control unit 21 ends the process of S208, the control point reception process illustrated in FIG.

  As shown in FIG. 6, the control unit 21 determines in S107 that the change of the reference point is not instructed via the operation unit 23 or ends the reference point reception process of S108 via the operation unit 23. It is determined whether or not an instruction to change the first range on the image is given (S109). Here, the change of the first range on the image is executed by operating the first range designation slider 55b on the image.

  When determining in S109 that the change of the first range on the image has been instructed via the operation unit 23, the control unit 21 executes the first on-image range reception process shown in FIG. 13 (S110).

  FIG. 13 is a flowchart of the on-image first range acceptance process shown in FIG.

  As illustrated in FIG. 13, the first on-image range receiving unit 21e of the control unit 21 includes the reference point 22g stored in the storage unit 22 and the on-image first designated by the on-image first range designation slider 55b. The first range on the image is calculated based on the distance (S221).

  Next, the first on-image range receiving unit 21e writes the first on-image range calculated in S221 to the storage unit 22 as a new first on-image range 22h (S222).

  Next, the control unit 21 displays the first on-image range 22h in the adjustment target pixel display area 52 in the same manner as the process of S144 (S223).

  When the control unit 21 ends the process of S223, the first on-image range reception process illustrated in FIG. 13 ends.

  As illustrated in FIG. 6, when the control unit 21 determines in S109 that the change of the first range on the image is not instructed via the operation unit 23 or ends the first range on image reception process in S110, It is determined whether or not an instruction to change the second range on the image is given via the operation unit 23 (S111). Here, the change of the second range on the image is executed by operating the second range designation slider 55c on the image.

  If the control unit 21 determines in S111 that the change of the second range on the image has been instructed via the operation unit 23, the control unit 21 executes the second range on image reception process illustrated in FIG. 14 (S112).

  FIG. 14 is a flowchart of the on-image second range acceptance process shown in FIG.

  As illustrated in FIG. 14, the second on-image range receiving unit 21 f of the control unit 21 includes the reference point 22 g stored in the storage unit 22 and the on-image currently designated by the on-image second range designation slider 55 c. Based on the distance and the first on-image range 22h stored in the storage unit 22, a new second on-image range is calculated (S241).

  Next, the second on-image range receiving unit 21f writes the second on-image range calculated in S241 to the storage unit 22 as a new second on-image range 22i (S242).

  Next, the control unit 21 displays the second range 22i on the image in the adjustment target pixel display area 52 in the same manner as the process of S144 (S243).

  Next, the control unit 21 in the image space 22d within the color space upper range 22f stored in the storage unit 22 among the images represented by the image data 22d, the first image upper range 22h stored in the storage unit 22. Alternatively, pixels within the second range 22i on the image are detected (S244).

  Next, the control unit 21 displays the pixels detected in S244 in the adjustment target pixel display area 52 as in the process of S146 (S245).

  When the process of S245 is completed, the control unit 21 ends the second on-image range reception process illustrated in FIG.

  As illustrated in FIG. 6, the control unit 21 determines in S111 that the change of the second range on the image is not instructed via the operation unit 23, or ends the second range on image reception process in S112. It is determined whether or not the next button 56 has been pressed via the operation unit 23 (S113).

  When determining in S113 that the next button 56 has not been pressed via the operation unit 23, the control unit 21 determines whether or not the cancel button 57 has been pressed via the operation unit 23 (S114).

  If the control unit 21 determines in S114 that the cancel button 57 has not been pressed via the operation unit 23, the control unit 21 returns to the process of S103 again.

  On the other hand, when determining in S114 that the cancel button 57 has been pressed via the operation unit 23, the control unit 21 ends the display of the partial color adjustment first screen 50 on the display unit 24 (S115).

  Next, the control unit 21 deletes unnecessary information from the storage unit 22 (S116). Here, unnecessary information includes the reference color 22e, the color space upper range 22f, the reference point 22g, the image first range 22h, the image upper range 22i, and the Lab data 22j.

  When the control section 21 finishes the process of S116, the control section 21 ends the process shown in FIG.

  If the control unit 21 determines in S113 that the next button 56 has been pressed via the operation unit 23, the control unit 21 ends the display of the partial color adjustment first screen 50 on the display unit 24 (S117).

  FIG. 15 is a flowchart subsequent to the flowchart shown in FIG.

  When the process of S117 shown in FIG. 6 ends, the control unit 21 executes the partial color adjustment second screen display process shown in FIG. 16 as shown in FIG. 15 (S261).

  FIG. 16 is a flowchart of the partial color adjustment second screen display process shown in FIG.

  As illustrated in FIG. 16, the control unit 21 causes the display unit 24 to display a partial color adjustment second screen 60 illustrated in FIG. 17, which is a screen for executing partial color adjustment (S <b> 281).

  FIG. 17 is a diagram showing a partial color adjustment second screen 60 displayed on the display unit 24.

  In FIG. 17, the partial color adjustment second screen 60 is generated by a candidate color designation GUI first area 61 that displays a GUI for designating a candidate color that is a candidate for a reference color after color adjustment, and an additional parameter. A candidate color designation GUI second area 62 for displaying a GUI for designating the candidate color, a return button 63 that is a button for returning to the partial color adjustment first screen 50, and for executing partial color adjustment. And an adjustment execution button 64 which is a button.

  The candidate color designation GUI first area 61 includes a hue check box 61a that is a check box for designating a hue as a parameter for color adjustment, and a check box for designating saturation as a parameter for color adjustment. It is specified in a certain saturation check box 61b, a brightness check box 61c that is a check box for designating brightness as a parameter for color adjustment, a hue check box 61a, a saturation check box 61b, and a brightness check box 61c. A test print button 61d which is a button for printing a candidate color patch (hereinafter referred to as “selected parameter patch”) generated by a parameter (hereinafter referred to as “selected parameter”), a hue check box 61a, and a saturation check box 1b and additional parameter test which is a button for printing a patch of candidate color (hereinafter referred to as “additional parameter patch”) generated by a parameter not specified in the brightness check box 61c (hereinafter referred to as “additional parameter”) A print button 61e, a selection parameter patch vertical position spin box 61f that is a spin box for designating a vertical position of a desired candidate color among the selected parameter patches, and a horizontal position of the desired candidate color among the selection parameter patches And a selection parameter patch lateral position spin box 61g, which is a spin box for designating. The hue check box 61a, the saturation check box 61b, and the lightness check box 61c are configured such that all check boxes cannot be deselected and all check boxes cannot be selected. That is, only one of the hue check box 61a, the saturation check box 61b, and the lightness check box 61c, or a state in which only two of them are selected can be taken.

  The candidate color designation GUI second area 62 designates a cancel button 62a that is a button for canceling designation of a candidate color generated by an additional parameter, and a vertical position of a desired candidate color among additional parameter patches. An additional parameter patch vertical position spin box 62b, and an additional parameter patch horizontal position spin box 62c that is a spin box for designating a horizontal position of a desired candidate color among the additional parameter patches. .

  As shown in FIG. 16, when the control unit 21 finishes the processing of S281, the additional parameter test print button 61e, the selected parameter patch vertical position spin box 61f, the selected parameter patch horizontal position spin box 61g, the candidate color designation GUI second The GUI in the area 62 and the adjustment execution button 64 are grayed out to disable operation (S282). That is, only the hue check box 61a, the saturation check box 61b, the lightness check box 61c, the test print button 61d, and the return button 63 are operable.

  Next, the control unit 21 sets, for example, only the hue check box 61a among the hue check box 61a, the saturation check box 61b, and the lightness check box 61c (S283). In S283, the control unit 21 causes only one or only two of the hue check box 61a, the saturation check box 61b, and the lightness check box 61c to be selected. It only has to be.

  If the hue check box 61a, the saturation check box 61b, and the lightness check box 61c are operable thereafter, the control unit 21 selects the hue check box 61a, the saturation check box 61b, and the lightness check box 61c. Can be changed according to an instruction from the operation unit 23.

  When the process of S283 is completed, the control unit 21 ends the partial color adjustment second screen display process shown in FIG.

  As shown in FIG. 15, when the partial color adjustment second screen display process of S261 is completed, the control unit 21 determines whether or not the test print button 61d is pressed (S262).

  If the control unit 21 determines in S262 that the test print button 61d has been pressed, it executes the test print process shown in FIG. 18 (S263).

  FIG. 18 is a flowchart of the test print process shown in FIG.

  As illustrated in FIG. 18, the candidate color printing unit 21 b of the control unit 21 includes a reference color 22 e stored in the storage unit 22, a hue check box 61 a, a saturation check box 61 b, among hue, saturation, and brightness. First patch information is generated based on the parameter selected in the lightness check box 61c (S301). Here, the first patch information is information obtained by collecting a plurality of types of candidate colors that are candidates for the reference color after color adjustment when it is assumed that color adjustment has been performed on the reference color 22e. This is information including the printing position on the paper for each candidate color when the type of candidate color is printed on the paper as a patch. The candidate color printing unit 21b can also allow the user to set the adjustment amount used when generating the candidate color in advance.

  Next, the candidate color printing unit 21b writes the first patch information generated in S301 to the storage unit 22 as the first patch information 22k (S302).

  Next, the candidate color printing unit 21b prints a patch based on the first patch information 22k (S303). That is, the candidate color printing unit 21b transmits the patch print data to the MFP 40, and causes the MFP 40 to print the patch.

  FIG. 19A is a diagram illustrating an example of a patch printed by the MFP 40 when a candidate color is generated with one parameter of hue, saturation, and lightness. FIG. 19B is a diagram illustrating an example of a patch printed by the MFP 40 when a candidate color is generated with two parameters of hue, saturation, and lightness.

  When the candidate color printing unit 21b generates a candidate color with one parameter of hue, saturation, and lightness, as shown in FIG. 19A, a plurality of types of candidate colors are arranged in a line in order of the amount of the parameter. Generate a patch. In FIG. 19A, the center candidate color, that is, the candidate color whose vertical position is A and whose horizontal position is 6, is the reference color 22e. When the candidate color printing unit 21b generates a candidate color with two parameters of hue, saturation, and brightness, as shown in FIG. 19B, a plurality of types of candidate colors are arranged in the order of the amount of the first parameter. Patches are generated that are arranged in columns and arranged in rows in the order of the amount of the second parameter. In FIG. 19B, the center candidate color, that is, the candidate color whose vertical position is F and whose horizontal position is 6 is the reference color 22e.

  As illustrated in FIG. 18, when the processing of S303 is completed, the control unit 21 operates the additional parameter test print button 61e, the selected parameter patch vertical position spin box 61f, the selected parameter patch horizontal position spin box 61g, and the adjustment execution button 64. Enable (S304). That is, hue check box 61a, saturation check box 61b, lightness check box 61c, test print button 61d, additional parameter test print button 61e, selected parameter patch vertical position spin box 61f, selected parameter patch horizontal position spin box 61g, and return button Only the operation button 63 and the adjustment execution button 64 are operable.

  Next, the control unit 21 sets the values of the selected parameter patch vertical position spin box 61f and the selected parameter patch horizontal position spin box 61g to the values of the reference color 22e (S305).

  When the process of S305 is completed, the control unit 21 ends the test print process shown in FIG.

  As shown in FIG. 15, the control unit 21 determines in S262 that the test print button 61d has not been pressed, or determines whether or not the additional parameter test print button 61e has been pressed when the test print process in S263 is completed. Judgment is made (S264).

  If the control unit 21 determines in S264 that the additional parameter test print button 61e has been pressed, it executes the additional parameter test print process shown in FIG. 20 (S265).

  FIG. 20 is a flowchart of the additional parameter test printing process shown in FIG.

  As shown in FIG. 20, the candidate color printing unit 21b of the control unit 21 includes first patch information 22k stored in the storage unit 22, a selected parameter patch vertical position spin box 61f, and a selected parameter patch horizontal position spin box 61g. In step S321, the designated candidate color is identified from among a plurality of types of candidate colors included in the first patch information 22k.

  Next, the candidate color printing unit 21b is based on the candidate color specified in S321 and the parameters not selected in the hue check box 61a, the saturation check box 61b, and the brightness check box 61c among the hue, saturation, and brightness. Second patch information is generated (S322). Here, the second patch information is information obtained by collecting a plurality of candidate colors that are candidates for the reference color after color adjustment on the assumption that color adjustment is further performed on the candidate color specified in S321. The information includes the print position on the paper for each candidate color when a plurality of types of candidate colors are printed on the paper as patches. The candidate color printing unit 21b can also allow the user to set the adjustment amount used when generating the candidate color in advance.

  Next, the candidate color printing unit 21b writes the second patch information generated in S322 to the storage unit 22 as the second patch information 22l (S323).

  Next, the candidate color printing unit 21b prints a patch based on the second patch information 22l (S324). That is, the candidate color printing unit 21b transmits the patch print data to the MFP 40, and causes the MFP 40 to print the patch. Note that the patches printed in S324 are the same as the patches shown in FIG. However, the candidate color at the center of the patch is the candidate color specified in S321.

  Next, the control unit 21 grays out the GUI of the candidate color designation GUI first area 61 to make the operation impossible (S325). That is, only the return button 63 and the adjustment execution button 64 are operable.

  Next, the control unit 21 enables the GUI of the candidate color designation GUI second area 62 (S326). That is, only the cancel button 62a, the additional parameter patch vertical position spin box 62b, the additional parameter patch horizontal position spin box 62c, the return button 63, and the adjustment execution button 64 are operable.

  Next, the control unit 21 sets the values of the additional parameter patch vertical position spin box 62b and the additional parameter patch horizontal position spin box 62c to the values of the candidate colors specified in S321 (S327).

  When the process of S327 is completed, the control unit 21 ends the additional parameter test printing process shown in FIG.

  As shown in FIG. 15, the control unit 21 determines in S264 that the additional parameter test print button 61e has not been pressed, or whether or not the cancel button 62a has been pressed when the additional parameter test print process in S265 is completed. Is determined (S266).

  If it is determined in S266 that the cancel button 62a has been pressed, the control unit 21 executes an additional parameter patch cancellation process shown in FIG. 21 (S267).

  FIG. 21 is a flowchart of the additional parameter patch cancellation process shown in FIG.

  As shown in FIG. 21, the control unit 21 deletes the second patch information 22l from the storage unit 22 (S341).

  Next, the control unit 21 grays out the GUI of the candidate color designation GUI second area 62 to make the operation impossible (S342). That is, only the return button 63 and the adjustment execution button 64 are operable.

  Next, the control unit 21 enables the GUI of the candidate color designation GUI first area 61 (S343). That is, hue check box 61a, saturation check box 61b, lightness check box 61c, test print button 61d, additional parameter test print button 61e, selected parameter patch vertical position spin box 61f, selected parameter patch horizontal position spin box 61g, and return button Only the operation button 63 and the adjustment execution button 64 are operable.

  When the process of S343 is completed, the control unit 21 ends the additional parameter patch cancel process shown in FIG.

  As shown in FIG. 15, the control unit 21 determines in S266 that the cancel button 62a has not been pressed, or determines whether or not the return button 63 has been pressed when the additional parameter patch cancellation processing in S267 is completed. (S268).

  When determining in S268 that the return button 63 has been pressed, the control unit 21 ends the display of the partial color adjustment second screen 60 on the display unit 24 (S269).

  Next, the control unit 21 deletes the first patch information 22k from the storage unit 22, and further deletes the second patch information 22l from the storage unit 22 when the second patch information 22l is stored in the storage unit 22. (S270).

  When the process of S270 is completed, the control unit 21 returns to the process of S102 shown in FIG.

  When determining in S268 that the return button 63 has not been pressed, the control unit 21 determines whether or not the adjustment execution button 64 has been pressed (S271).

  If the control unit 21 determines in S271 that the adjustment execution button 64 has not been pressed, the control unit 21 returns to the process of S262 again.

  On the other hand, when determining in S271 that the adjustment execution button 64 has been pressed, the control unit 21 executes the color adjustment process shown in FIG. 22 (S272).

  FIG. 22 is a flowchart of the color adjustment process shown in FIG.

  As illustrated in FIG. 22, the candidate color receiving unit 21c of the control unit 21 determines whether or not the second patch information 22l is stored in the storage unit 22 (S361).

  If the candidate color receiving unit 21c determines in S361 that the second patch information 22l is not stored in the storage unit 22, the first patch information 22k stored in the storage unit 22 and the selected parameter patch vertical position spin box 61f Based on the position specified in the selected parameter patch lateral position spin box 61g, the specified candidate color is specified among the plurality of types of candidate colors included in the first patch information 22k (S362).

  On the other hand, if the candidate color receiving unit 21c determines in S361 that the second patch information 22l is stored in the storage unit 22, the candidate color receiving unit 21c and the second parameter information 22l stored in the storage unit 22 and the additional parameter patch vertical position spin Based on the position designated in the box 62b and the additional parameter patch lateral position spin box 62c, the designated candidate color is specified among the plural types of candidate colors included in the second patch information 22l (S363). ).

  When the processing of S362 or S363 ends, the pixel color adjustment unit 21g of the control unit 21 calculates an adjustment amount from the reference color 22e stored in the storage unit 22 to the candidate color specified in S362 or S363 (S364). ).

  Next, the pixel color adjustment unit 21g is an image stored in the storage unit 22 within the range 22f in the color space stored in the storage unit 22 among the image data 22d stored in the storage unit 22. The color of the pixel in the upper first range 22h is adjusted based on the adjustment amount calculated in S364 (S365). Here, the pixel color adjustment unit 21g uniformly adjusts the colors of all the pixels in the color space range 22f and the image first range 22h in the image data 22d with the adjustment amount calculated in S364. To do. That is, the pixel color adjusting unit 21g translates the color of the pixel to be adjusted in the lightness direction according to the lightness component of the adjustment amount calculated in S364 in the Lab color space, and the color of the adjustment amount calculated in S364. The color component is translated in the saturation direction according to the degree component, and is rotated in the hue direction according to the hue component of the adjustment amount calculated in S364.

  Next, the pixel color adjustment unit 21g is an image stored in the storage unit 22 within the range 22f in the color space stored in the storage unit 22 among the image data 22d stored in the storage unit 22. The color of the pixel in the upper second range 22i is adjusted based on the adjustment amount calculated in S364 (S366). Here, the pixel color adjustment unit 21g uses the adjustment amount calculated in S364 according to the position on the image of the pixel to be adjusted (hereinafter referred to as “the adjustment amount for each pixel”), and the image data 22d. Among them, the colors of all the pixels in the color space range 22f and in the image second range 22i are adjusted. In other words, the pixel color adjustment unit 21g translates the color of the pixel to be adjusted in the Lab color space in the lightness direction according to the lightness component of the adjustment amount for each pixel, and according to the saturation component of the adjustment amount for each pixel. The image is translated in the saturation direction and rotated in the hue direction according to the hue component of the adjustment amount for each pixel.

The pixel color adjustment unit 21g can calculate the adjustment amount for each pixel by the following equation (3). In Equation 3, Y is a pixel-by-pixel adjustment amount for pixels in the image data 22d that are in the color space range 22f and in the image second range 22i. y is the adjustment amount calculated in S364. l ₁ is the radius of a circle forming the boundary of the first range 22h on the image as shown in FIG. As shown in FIG. 23, l ₂ is a radius of a circle that forms a boundary different from the boundary of the first image range 22 h among the boundaries of the second image range 22 i in the image. l _x is a distance from the reference point 22g to the pixel to be adjusted in the image as shown in FIG.

  Note that the adjustment amounts applied to the pixels in S365 and S366 are as shown in FIG. 24 according to the distance from the reference point 22g to the pixel in the image. That is, the process of S365 is a process of adjusting the color in the color space range 22f among the colors of the pixels in the first range 22h on the image according to the color adjustment amount from the reference color 22e to the candidate color. In the process of the above, the colors in the color space range 22f among the colors of the pixels in the image second range 22i are changed from the first image range 22h toward the opposite side of the image first range 22h. This is a process of adjusting so that the adjustment amount gradually decreases.

  As illustrated in FIG. 22, when the process of S <b> 366 ends, the control unit 21 ends the color adjustment process illustrated in FIG. 22.

  As shown in FIG. 15, when the control unit 21 finishes the color adjustment process in S272, the control unit 21 determines whether or not there is a pixel that cannot be adjusted in S365 or S366 (S273). Here, the control unit 21 determines that there is a pixel that cannot be adjusted when one of the adjusted pixels is out of the Lab space in S365 or S366. On the other hand, when all the adjusted pixels are in the Lab space in S365 or S366, the control unit 21 determines that there is no pixel that cannot be adjusted.

  When the control unit 21 determines in S273 that there is a pixel that cannot be adjusted, for example, a warning that “color adjustment has failed. Change the setting and try again” is displayed on the display unit 24 (S274). ), The process returns to S262.

  On the other hand, when determining in S273 that there is no pixel that cannot be adjusted, the control unit 21 overwrites the storage unit 22 with the image data after color adjustment in S365 or S366 as image data 22d (S275).

  Next, the control unit 21 ends the display of the partial color adjustment second screen 60 on the display unit 24 (S276).

  Next, the control unit 21 deletes unnecessary information from the storage unit 22 (S277). Here, unnecessary information includes the reference color 22e, the color space upper range 22f, the reference point 22g, the image first range 22h, the image upper range 22i, the Lab data 22j, and the first patch information 22k. When the second patch information 22l is stored in the storage unit 22, the second patch information 22l is also included.

  When the control unit 21 ends the process of S277, the control unit 21 ends the process illustrated in FIG.

  As described above, the PC 20 that executes the printer driver 22a accepts the designation of the first upper image range 22h and the second upper image range 22i (YES in S107, YES in S109, YES in S111), and Since the colors of the pixels in the first range 22h and the second range 22i on the image are adjusted (S365, S366), the range for adjusting the pixel color in the image can be specified by the user.

  In particular, the PC 20 that executes the printer driver 22a adjusts the pixel color according to the color adjustment amount from the reference color 22e to the candidate color (S365), and accepts designation of the first range 22h on the image (YES in S107, S109) (YES), the pixel color is adjusted so that the amount of color adjustment gradually decreases from the first image range 22h to the opposite side of the first image range 22h (S366). Since the specification of the two ranges 22i is also accepted (YES in S107, YES in S109, YES in S111), only the range in the image where the pixel color is adjusted by the color adjustment amount from the reference color 22e to the candidate color. Compared to a configuration that accepts designation, it is possible to suppress the possibility that the color in the image changes unnaturally within and outside the range in which the pixel color is adjusted.

  Further, the PC 20 that executes the printer driver 22a accepts the designation of the range 22f in the color space (YES in S103, YES in S105), and the color of the pixel in the first range 22h on the image or the second range 22i on the image Of these, the color within the range 22f in the color space is adjusted (S365, S366), so that the pixel whose color is to be adjusted can be specified not only by the range in the image but also by the range in the color space.

  The PC 20 uses two ranges, the first range on the image and the second range on the image, in this embodiment as the range on the image on which the color adjustment is performed. Three or more ranges may be used as the range.

  The computer of the present invention is a PC in the present embodiment, but may be a computer other than a PC.

  The image forming apparatus of the present invention is an MFP in the present embodiment, but may be an image forming apparatus other than the MFP, such as a printer dedicated machine, a fax dedicated machine, and a copy dedicated machine.

20 PC (computer)
22a printer driver 22e reference color 22f color space range 22g reference point 22h first range on image 22i second range on image 40 MFP (image forming apparatus)

Claims (2)

A reference color receiving step for receiving designation of a reference color to be adjusted, and the reference color after color adjustment on the assumption that color adjustment has been performed on the reference color received by the reference color receiving step A candidate color printing step for causing the image forming apparatus to print a plurality of types of candidate colors as candidates; a candidate color receiving step for accepting designation of one candidate color from the plurality of types of candidate colors printed by the candidate color printing step; A reference point receiving step for receiving specification of a reference point in the image, and a first range on image for receiving a specification of a first range on the image that is a range surrounding the reference point received by the reference point receiving step in the image And the first range on the image received in the first range reception step on the image is enclosed in the image. An image second range receiving step for receiving designation of a second image upper range that is a range and excluding the first image upper range, and a pixel color adjustment step for adjusting the color of the pixel in the image Let it run
The pixel color adjustment step receives the candidate color from the reference color received by the reference color reception step, the color of the pixel within the first range on the image received by the first range reception step on the image. The color of the pixel in the second range on the image received by the second range receiving step on the image is adjusted by the color adjustment amount to the candidate color received by the step, and the first range on the image A printer driver, comprising: a step of adjusting the color adjustment amount to gradually decrease from the side toward the opposite side of the first range on the image. Causing the computer to execute an on-color space range receiving step of accepting designation of a range on the color space that is a range surrounding the reference color received in the reference color in the color space;
In the pixel color adjustment step, the color space upper range accepted by the color space upper range acceptance step among the colors of the pixels in the first image upper range accepted by the image first range acceptance step. Are adjusted by the amount of color adjustment from the reference color received in the reference color receiving step to the candidate color received in the candidate color receiving step, and received in the second on-image range receiving step. Out of the colors of the pixels in the second range on the image, the colors in the range on the color space received by the range reception step on the color space are changed from the first range on the image to the image on the image. 2. The printer according to claim 1, wherein the adjustment is performed so that a color adjustment amount gradually decreases toward a side opposite to the one range. Iba.