JP2007053635A - Image processing method, image processing apparatus, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that image editing processing applied by a user cannot be faithfully reproduced in an image processing apparatus which subjects an original image to image editing processing to generate an edited image. <P>SOLUTION: A program for controlling the image processing apparatus which generates an edited image resulting from subjecting the original image to image editing processing causes the image processing apparatus to execute procedures of; acquiring color space identification information identifying a color space for representing the original image; performing image editing processing on the original image; generating editing history information which includes color space identification information identifying the color space for use in the image editing processing and designation of colors used in editing processing and shows a history of image editing processing, in association with the original image; reading out the color space identification information from the editing history information and converting the color space of the original image to a color space identified by the color space identification information when the color space identification information acquired with respect to the original image do not coincide with the color space identification information read from the editing history information; and reproducing image editing processing on the original image based on the editing history information to generate an edited image and outputting the edited image. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an image processing method, an image processing apparatus, and a program. In particular, the present invention relates to an image processing method, an image processing apparatus, and a program for generating an edited image obtained by subjecting an original image to image editing processing.

A technique for storing a history of image editing processing in an image processing apparatus that generates an edited image by performing image editing processing on an original image is known (see, for example, Patent Document 1). In the image processing apparatus described in Patent Document 1, after the image editing process, the history of the image editing process can be edited, and the original edited image can be re-edited.
JP 2001-243487 A

  However, there are a plurality of color spaces for representing an image, and the color space set for the original image may be different from the color space used for the image editing process. In this case, when an edited image based on the history of image editing processing is played back using the color space set for the original image, the color space at the time of image editing processing and the color space at the time of playback are different. There is a problem that the color does not match the processing and the edited image at the time of the image editing process cannot be reproduced faithfully.

  In order to solve the above-described problem, in the first embodiment of the present invention, there is provided a program for controlling an image processing device that generates an edited image obtained by subjecting an original image to image editing. A procedure for acquiring color space identification information for identifying a color space to be performed, a procedure for performing image editing processing on an original image, color space identification information for identifying a color space used for image editing processing, and a color used for editing processing Steps for generating editing history information including the designation and indicating the history of image editing processing in association with the original image, reading out the color space identification information from the editing history information, and the color space identification information and editing history acquired for the original image When the color space identification information read from the information does not match, the procedure for converting to the same color space and the image editing process based on the editing history information are reproduced for the original image after the color space conversion Generates edited image Te, to execute the steps of outputting. As a result, even if the color space of the original image and the color space of the editing history information are different, these different color spaces are matched, so that the edited image is generated by faithfully reproducing the image editing processing performed by the user. Can be output.

  In the procedure for outputting the edited image, when the designation of the color space identification information indicating the color space for outputting the edited image is received, the edited image is converted into the color space identified by the received color space identification information and output. You may have the procedure to do. As a result, even if the color space of the original image and the color space of the editing history information are different, these different color spaces are matched, so that the edited image is generated by faithfully reproducing the image editing processing performed by the user. Then, it can be output according to the designated color space.

  In the procedure for converting the color space, the color space of the original image may be converted to the color space of the editing history information. As a result, even if the color space of the original image and the color space of the editing history information are different, these different color spaces are aligned with the color space when the image editing process is performed. The edited image can be generated and output with faithful reproduction.

  In the procedure for converting the color space, the color space of the editing history information may be converted to the color space of the original image. As a result, even if the color space of the original image is different from the color space of the editing history information, these different color spaces are aligned with the color space of the original image. The image editing process can be reproduced to generate and output an edited image.

  In the procedure for converting the color space, the color space of the editing history information and the color space of the original image may be converted to the color space of the editing history information or a third color space different from the color space of the original image. Good. As a result, even if the color space of the original image and the color space of the editing history information are different, they are aligned with the third color space, so that the image editing process performed by the user is reproduced according to the color space of the output destination. An edited image can be generated and output.

  The procedure for performing the image editing process includes a patch process for extracting a part of the original image and pasting it on the other part of the original image, and the procedure for generating the editing history information is a process for generating one of the original images extracted in the patch process. Color history identification information indicating a color space used in patch processing may be included in the editing history information in association with the bitmap data of the copy. As a result, even when image editing processing is performed on a single original image in a plurality of different color spaces, the applied image editing processing can be reproduced according to each color space. Can be reproduced and the edited image can be generated and output.

  In order to solve the above problem, according to a second aspect of the present invention, there is provided an image processing method for generating an edited image obtained by subjecting an original image to image editing, and a color space identification for identifying a color space expressing the original image Information is acquired, image editing processing is performed on the original image, color space identification information for identifying the color space used for the image editing processing, and specification of the color used for the editing processing, and a history of the image editing processing is shown. Editing history information is generated in association with the original image, color space identification information is read from the editing history information, and color space identification information acquired for the original image and color space identification information read from the editing history information are If they do not match, they are converted to the same color space, and after the color space conversion, an image editing process based on the editing history information is reproduced for the original image to generate and output an edited image. Thereby, the effect similar to a 1st form can be acquired.

  In order to solve the above problem, according to a third aspect of the present invention, there is provided an image processing apparatus for generating an edited image obtained by editing an original image, wherein the color space identification for identifying a color space expressing the original image A color space information acquisition unit for acquiring information, an image editing processing unit for performing image editing processing on the original image, color space identification information for identifying a color space used for the image editing processing, and a color used for the editing processing An editing history generation unit that generates the editing history information including the designation and indicating the history of image editing processing in association with the original image, and the color space identification acquired from the original image by reading out the color space identification information from the editing history information A color space conversion unit that converts the information into the same color space when the color space identification information read from the editing history information does not match, and the image editing processing unit includes: After conversion, the original image It generates edited image by reproducing the image editing processing based on the edit history information for outputs. Thereby, the effect similar to a 1st form can be acquired.

  The above summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.

  Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the invention according to the scope of claims, and all combinations of features described in the embodiments are included. It is not necessarily essential for the solution of the invention.

  FIG. 1 shows an image processing apparatus 10 as an example. The image processing apparatus 10 generates an edited image 120 obtained by performing an image editing process on the original image 110. For example, the image processing apparatus 10 can generate a retouched image subjected to the retouching process as an example of the image editing process.

  The image processing apparatus 10 includes a main body 12 that executes a program for controlling the image processing apparatus 10 that generates an edited image 120 obtained by performing image editing processing on the original image 110. The image processing apparatus 10 includes a display 14 that has a display screen and displays to the user based on the output from the main body 12, and a keyboard 16 and a mouse 18 as an example of input means from the user to the main body 12. It is preferable. The digital camera 30 and the scanner 40 are connected to the main body 12 as an example of means for reading the original image 110.

  The main body 12 includes a hard disk and a memory (RAM), and stores, for example, the original image 110 read from the digital camera 30 or the scanner 40 in the hard disk or the like. In the present embodiment, an image processing apparatus 10 capable of generating and outputting an edited image 120 by faithfully reproducing the image editing process performed by the user when the edited image 120 subjected to the image editing process is output. The purpose is to provide.

  FIG. 2 shows a block diagram of the main body 12 as an example. The main body 12 includes an image storage unit 100 that stores original image information acquired from the digital camera 30 or the scanner 40, and color space identification information that identifies a color space that represents the original image 110 (hereinafter referred to as “original image color space ID”). Color space information acquisition unit 300 that acquires the image space, image editing processing unit 400 that performs image editing processing on the original image 110, and color space identification information that identifies the color space used for the image editing processing (hereinafter, “ Edit history information 500 including an edit color space ID ”and indicating the history of image editing processing in association with the original image 110, and an edit color space ID from the edit history information 130. If the original image color space ID read out and the original image 110 acquired for the original image 110 does not match the edit color space ID read out from the edit history information 130, it is converted into the same color space. Provided that the color space conversion unit 600, the color conversion information storage unit 200 that stores color conversion information 210 to be converted in the same color space.

  The image storage unit 100 further stores the editing history information 130 in association with the original image 110. Specifically, the image storage unit 100 stores the editing history information 130 in association with original image identification information (hereinafter referred to as “image ID”) for identifying the original image 110. The image storage unit 100 will also be described with reference to FIG.

  The image editing processing unit 400 further outputs the original image 110 or the edited image 120 to the display 14. In addition, the image editing processing unit 400 receives an input related to the image editing process from the user via the keyboard 16 or the mouse 18. Then, for example, the image editing processing unit 400 receives an input from the user, and performs an image editing process including a patch process in which a part of the original image 110 is extracted and pasted to another part.

  Further, after the color space conversion by the color space conversion unit 600, the image editing processing unit 400 reproduces an image editing process based on the editing history information 130 on the original image 110 to generate the edited image 120, and the display 14 Output to. As a result, even if the color space of the original image 110 and the color space of the editing history information 130 are different, the consistency between these different color spaces is achieved. Therefore, the edited image is reproduced by faithfully reproducing the image editing processing performed by the user. 120 can be generated and output.

  The color conversion information storage unit 200 associates, as the color conversion information 210, an original color space ID indicating the conversion source color space and a destination color space ID indicating the conversion destination color space, and a lookup table (LUT). Is stored. The look-up table converts pixel values that match or approximate the color of the original image 110 to be expressed in the color space after conversion and the color of the original image 110 to be expressed in the color space before conversion. Includes a table.

  When receiving the designation of color space identification information indicating the color space for outputting the edited image 120, the color space conversion unit 600 converts the edited image 120 into the color space identified by the received color identification information and outputs the converted color image. To do. As a result, even if the color space of the original image 110 and the color space of the editing history information 130 are different, the consistency between these different color spaces is achieved. Therefore, the edited image is reproduced by faithfully reproducing the image editing processing performed by the user. 120 can be generated and output according to the designated color space. Instead of the color conversion information storage unit 200, the color space conversion unit 600 may store the color conversion information 210.

  The editing history generating unit 500 includes the editing color space ID used in the patch processing in association with the partial bitmap data of the original image 110 extracted in the patch processing, and includes the editing history information 130. Is generated. Thus, even when image editing processing is performed on a single original image 110 in a plurality of different color spaces, the applied image editing processing can be reproduced according to each color space. The edited image 120 can be generated and output by faithfully reproducing the processing.

  The storage medium 20 stores programs that cause the image storage unit 100, the color conversion information storage unit 200, the color space information acquisition unit 300, the image editing processing unit 400, the editing history generation unit 500, and the color space conversion unit 600 to operate. To do. The main body 12 may cause the operation of the color space conversion unit 600 and the like by installing the program stored in the storage medium 20. Furthermore, as another method, the main body 12 may acquire such a program via a communication line.

  The color space refers to, for example, sRGB (standard RGB), Adobe (registered trademark) RGB, CIE 1976 (L * a * b *) color system, and the like. The original image color space ID and the edit color space ID can be handled as a profile (for example, an ICC profile) indicating a color space in which the original image 110 and the edit image 120 are to be expressed.

  FIG. 3 schematically shows the original image 110 or the retouched image. For example, FIG. 3A shows an original image 110 identified by the image ID “G0001.JPG”, and FIGS. 3C and 3D show an edited image 120 obtained by performing patch processing on the original image 110, 122 is shown schematically.

  The pixel area 402 is an area where patch processing is performed, the pixel area 404 is an area where a bitmap used for patch processing is extracted, X is the coordinates of a certain pixel existing in the pixel area 402, and Y is the coordinates of a certain pixel existing in the pixel area 404 Indicates. Note that the pixel area 402 is an area in which a photographer's finger captured in the subject (Mt. Fuji) is imaged.

  FIG. 4 schematically illustrates an example of information stored in the image storage unit 100. FIG. 4A schematically shows information on the original image 110 stored in the image storage unit 100. In the example illustrated in FIG. 4A, the image storage unit 100 associates the image ID “G0001.JPG” with information (bitmap) of the original image color space ID “A-RGB” and the original image 110. Etc.).

  FIG. 4B shows the editing history information 130 stored in the image storage unit 100. In the example illustrated in FIG. 4B, the image storage unit 100 stores editing history information 130 regarding the edited image 120. Specifically, the image storage unit 100 stores the image editing processing type “retouch processing”, the editing color space ID “S-RGB”, and the editing content in association with the image ID “G0001.JPG”. To do. An example of the content of editing is the coordinates of each pixel subjected to patch processing and the pixel value used for batch processing.

  Hereinafter, the color space identified by the original image color space ID “A-RGB” or the edit color space ID “A-RGB” is referred to as “A color space”. The color space identified by the original image color space ID “S-RGB” or the edit color space ID “S-RGB” is referred to as “S color space”. The pixel value of the coordinate X in the A color space is referred to as “X_A (R, G, B)”. The pixel value at the coordinate X in the S color space is referred to as “X_S (R, G, B)”. Here, R, G, and B may be integers from 0 to 255, for example.

  FIG. 5 is a flowchart showing an example of the operation for storing the editing history information 130. This flowchart starts when the original image 110 in FIG. 3A is selected. Note that at the start of this flowchart, the image storage unit 100 stores information related to the original image 110 in FIG.

  The color space information acquisition unit 300 acquires the original image color space ID (S100). In this case, the color space information acquisition unit 300 first displays on the display 14 an image selection screen (not shown) that allows the user to select the original image 110 to be subjected to image editing processing. For example, the color space information acquisition unit 300 receives the image ID “G0001.JPG” via the keyboard 16 or the mouse 18. The color space information acquisition unit 300 refers to the image storage unit 100 and acquires the original image color space ID “A-RGB” associated with the selected image ID “G0001.JPG”. The color space information acquisition unit 300 preferably outputs the acquired original image color space ID “A-RGB” on a memory (shared memory, the same applies hereinafter). That is, each function such as the color space conversion unit 600 and the image editing processing unit 400 can access this memory.

  The color space information acquisition unit 300 further reads information related to the original image 110 illustrated in FIG. 4A from the storage in the image storage unit 100. The color space information acquisition unit 300 interprets the read information and outputs it on the memory. That is, the color space information acquisition unit 300 develops information (bitmap or the like) indicating the original image 110 shown in FIG.

  The color space conversion unit 600 determines whether designation of color space identification information indicating a color space for outputting an image has been received from the user (S102). In this case, first, the color space conversion unit 600 displays on the display 14 a color space designation screen (not shown) that allows the user to designate a color space ID. When the user specifies color space identification information indicating a color space for outputting an image via the keyboard 16 or the mouse 18, the color space conversion unit 600 receives the color space ID specified by the user. The color space ID designated by the user is used as an editing color space ID for image editing processing in step S106 described later.

  In step S102, when the color space conversion unit 600 determines that the designation of the color space for outputting the image has been received (S102: Yes), the color space conversion unit 600 identifies the color identified by the designated color space identification information. The original image 110 is converted into a space (S104). More specifically, the color space conversion unit 600 refers to the color conversion information 210 and is developed on the memory in the color space identified by the designated color space identification information (edited color space ID). The data (bitmap) of the original image 110 shown in 3 (a) is converted.

  Specifically, when the designated color space identification information (edit color space ID) is “S-RGB”, the color space conversion unit 600 displays the original image color space ID “A” shown in FIG. Information (bitmap or the like) indicating the original image 110 developed on the memory with pixel values to be expressed in the A color space according to “-RGB” is converted into pixel values to be expressed in the S color space.

  If the color conversion information 210 is to convert the pixel value (100, 100, 100) in the A color space to the pixel value (90, 90, 90) in the S color space, the color space conversion unit 600 converts the pixel value X_A (100, 100, 100) in the A color space of the coordinate X of the original image into the pixel value X_S (90, 90, 90) in the S color space.

  On the other hand, if the color space conversion unit 600 determines in step S102 that the designation of the color space for outputting the image has not been received (S102: No), step S104 is skipped and step 106 is executed. In this case, the original image color space ID “A-RGB” is used as an edit color space ID for image editing processing in step S106 described later.

  The image editing processing unit 400 performs image editing processing on the original image 110 (S106). More specifically, the image editing processing unit 400 displays an image editing processing screen (not shown) that allows the user to perform image editing processing such as patch processing. In addition, the image editing processing unit 400 displays the data (bitmap) of the original image 110 developed on the memory on the image editing processing screen in the color space identified by the editing color space ID.

  That is, when the original image 110 of the original image color space ID “A-RGB” is subjected to image editing processing, when the color space conversion unit 600 receives the designation of the edit color space ID “S-RGB” from the user ( (S102: Yes), the image editing processing unit 400 displays information (bitmap or the like) indicating the original image 110 converted into a pixel value in the S color space (S104) in the S space. On the other hand, when the color space conversion unit 600 has not received a designation from the user (S102: No), information (bitmap or the like) indicating the original image 110 with the pixel values in the A color space is displayed in the A color space. indicate.

  Note that the image editing processing unit 400 preferably displays on the image editing processing screen a “correction tool” button that allows the user to select a type of image editing processing such as patch processing or sharpness processing.

  The image editing processing unit 400 performs image editing processing while displaying the original image 110 on the image editing processing screen. For example, the image editing processing unit 400 performs retouch processing for generating the edited image 120 shown in FIG. 3C from the original image 110 shown in FIG. More specifically, as shown in FIG. 3B, the image editing processing unit 400 extracts bitmap data of the pixel region 404 by input from the user.

  The image editing processing unit 400 performs patch processing on the pixel region 402 using the extracted bitmap according to input from the user. FIG. 3C shows the edited image 120 that has been subjected to the patch processing.

  The editing history generation unit 500 generates editing history information 130 (S108). More specifically, the edit history generation unit 500 first acquires information such as an image ID, a type of image editing process, an editing color space ID, and details of editing performed by the user from the image editing processing unit 400.

  For example, when the image editing processing unit 400 performs the patch processing shown in FIGS. 3A to 3C in the S space, the editing history generating unit 500 displays the image ID “G0001.JPG”, The type of image editing process “patch processing”, the editing color space ID “S-RGB”, and the contents of editing are acquired. An example of the contents of this editing is “the coordinates of each pixel in the pixel region 402” and “the pixel value after editing at that coordinate”, and the pixel value is a value in the color space indicated by the editing color space ID.

  Based on the acquired information, the editing history generation unit 500 generates editing history information 130 including the editing color space ID and indicating the history of the image editing process in step S106 in association with the image ID. The editing history generation unit 500 preferably generates the editing history information 130 on the memory.

  For example, when the image editing processing unit 400 performs the patch processing shown in FIGS. 3A to 3C in the S space (S106), the editing history generation unit 500 selects the type of image editing processing. "Patch processing", editing color space ID "S-RGB", and editing content "coordinates of each pixel in pixel area 402" and "pixel value to replace each pixel" correspond to image ID "G0001.JPG" To generate. Thus, even when image editing processing is performed on a single original image 110 in a plurality of different color spaces, the applied image editing processing can be reproduced according to each color space. The edited image 120 can be generated and output by faithfully reproducing the processing.

  Note that the edit history generation unit 500 may generate the edit history information 130 based on an instruction from the user. Specifically, the image editing processing unit 400 displays, for example, on the image editing processing screen on which the “history generation” button for accepting an input from the user for generating the editing history information 130 is arranged, and the image editing processing unit When the input is received by 400, the edit history generation unit 500 may generate the edit history information 130.

  In addition to or instead of this, the editing history generation unit 500 may generate the editing history information 130 at a predetermined timing (for example, every 60 seconds). The predetermined timing may be, for example, 30 seconds for the paint process, 60 seconds for the saturation change (decrease or enhancement), and the time corresponding to the type of the image editing process.

  Further, in addition to these, the editing history generation unit 500 may generate the editing history information 130 when the type of image editing processing is switched. For example, the edit history information 130 may be generated when the “correction tool” button is clicked by the user in step 106.

  The image editing processing unit 400 determines whether or not the image editing process has been completed (S110). More specifically, the image editing processing unit 400 displays, for example, on the above-described image editing processing screen in which an “end” button for accepting an input from the user for ending the image editing processing is received and accepts this input. Determines that the image editing process has ended.

  In step S110, when the image editing processing unit 400 determines that the image editing processing has ended (S110: Yes), the image storage unit 100 reads the editing history information 130 generated by the editing history generation unit 500, Stored in association with the ID (S112). Here, this flowchart ends.

  For example, when the image editing processing unit 400 performs the patch processing shown in FIGS. 3A to 3C in the S space (S106), the image storage unit 100 displays, for example, FIG. The editing history information 130 (retouch processing 1) shown in FIG. The image storage unit 100 preferably stores the editing history information 130 on a hard disk.

  On the other hand, when the image editing processing unit 400 determines in step S110 that the image editing process has not ended (S110: No), the process returns to step S106. However, the image editing processing unit 400 may not display the image editing processing screen that has already been displayed.

  Note that the image processing apparatus 10 may include a display unit (not shown). The display unit may display the image selection screen, the color space designation image, and the image editing processing screen. In this case, the color space information acquisition unit 300 receives the image ID of the original image 110 selected by the user via the display unit. The color space conversion unit 600 and the image editing processing unit 400 may be the same. Further, the image selection screen, the color space designation image, and the image editing processing screen may be a single screen.

  When the edited image 120 is reproduced after the image is edited based on the flowchart shown in FIG. 5, the original image color space ID “A-RGB” and the edit color space ID “S-RGB” do not match. . In order to explain this problem, the color of the coordinate Y in the original image 110 shown in FIG. 3A is represented by Y_A (200, 200, 200) in the A color space, while Y_S ( 180, 180, 180).

  In the above assumption, when the edited image 120 shown in FIG. 3C is displayed again from the image storage unit 100, the original image color space ID “A-RGB” and the edited color space “S-RGB” remain different. If there is, the pixel value in the editing process of the editing history information 130 is also interpreted as the A color space which is the color space of the original image, and the edited image 122 shown in FIG. For example, the pixel value Y_S (180, 180, 180) of the S color space included in the patch processing of the editing history information 130 is used as it is, and the pixel value Y_A (180, 180, 180) of the A color space in the color space of the original image 110 is unchanged. 180) and the edited image 122 is reproduced. As a result, when the image is finally expressed in the A color space, as shown in FIG. 3D, in the reproduced edited image 122, the color of the X coordinate is changed to the pixel value Y_S (180, 180, 180). ), The pixel value Y_A (200, 200, 200) of the Y coordinate in the original image 110 and the pixel value X_A (= Y_S) of the X coordinate do not match and are expressed as different colors. Is done. Therefore, when the edited image 120 shown in FIG. 3C is to be reproduced, there is a problem that the edited image 122 shown in FIG. 3D is reproduced.

  Therefore, in the present embodiment, the desired edited image 120 is reproduced even when the original image color space ID “A-RGB” and the edit color space ID “S-RGB” do not match.

  FIG. 6 is a flowchart showing an example of an operation for reproducing and outputting the edited image 120. This flowchart starts from the point where the edited image 120 shown in FIG. 3C is selected. At the start of this flowchart, the image storage unit 100 displays the information related to the original image 110 shown in FIG. 4A and the edit history information 130 related to the edited image 120 shown in FIG. Therefore, it is assumed that the retouch processing 1 is described).

  The color space information acquisition unit 300 acquires the original image color space ID (S200). This operation is the same as step S100 described in FIG. Specifically, the color space information acquisition unit 300 acquires the original image color space ID “A-RGB” shown in FIG.

  The color space information acquisition unit 300 further reads the information related to the original image 110 shown in FIG. 4A and the edit history information 130 related to the edited image 120 shown in FIG. The color space information acquisition unit 300 interprets the read information and outputs it on the memory. Instead, the color space information acquisition unit 300 supplies information about the original image 110 and the like to the color space conversion unit 600, and the color space conversion unit 600 interprets the supplied information and develops it on the memory. May be.

  The color space conversion unit 600 reads the edit color space ID (S202). More specifically, the color space conversion unit 600 reads the edit color space ID from the edit history information 130 developed on the memory. Specifically, the color space conversion unit 600 reads the edit color space ID “S-RGB” shown in FIG.

  The color space conversion unit 600 determines whether or not the read edit color space ID matches the original image color space ID developed on the memory (S204). In step S204, when the color space conversion unit 600 determines that the edit color space ID and the original image color space ID do not match (S204: No), the color space conversion unit 600 refers to the color conversion information 210, The color space of the original image 110 is converted into a color space identified by the edit color space ID (S206).

  Specifically, when the image editing processing unit 400 performs the patch processing shown in FIGS. 3A to 3C in the S color space (S106), the editing color space ID shown in FIG. 4B is used. “S-RGB” and the original image color space ID “A-RGB” shown in FIG. 4A do not match (S204: No). Therefore, in this case, the color space conversion unit 600 refers to the color conversion information 210 and sets pixel values of information (bitmap or the like) indicating the original image 110 to be expressed in the A color space developed on the memory. , The pixel value to be expressed in the S color space. For example, the color space conversion unit 600 converts the pixel value Y_A of the coordinate Y of the original image 110 illustrated in FIG. 3B to the pixel value Y_S.

  In step S206, instead of the above form, the color space conversion unit 600 may convert the color space of the editing history information into a color space identified by the original image color space ID.

  On the other hand, if the color space conversion unit 600 determines in step S204 that the edit color space ID and the original image color space ID match (S204: Yes), step S206 is skipped and step 208 is executed.

  The image editing processing unit 400 reproduces the image editing process based on the editing history information 130 (S208). Specifically, the image editing processing unit 400 reproduces image editing processing based on the information (bitmap or the like) indicating the original image 110 developed on the memory and the editing history information 130. That is, the image editing processing unit 400 generates information (bitmap or the like) indicating the edited image 120 on the memory.

  For example, in step S208, the image editing processing unit 400 is based on information (bitmap or the like) indicating the original image 110 of the pixel value to be expressed in the S color space and the editing history information 130 applied in the S color space. The edited image 120 is reproduced. Thereby, the numerical value of the pixel value Y_S (180, 180, 180) of the S color space included in the patch processing of the editing history information 130 is replaced with the pixel value X_S of the S color space of the X coordinate in the edited image 120 as it is. Patched. As a result, a desired edited image 120 is reproduced as shown in FIG.

  Next, the color space conversion unit 600 determines whether a designation of a color space for outputting an image has been received (S210). Since this operation is the same as step S102 described in FIG.

  In step S210, when the color space conversion unit 600 determines that the designation of the color space for outputting the image has been received (S210: Yes), the color space conversion unit 600 identifies the color identified by the designated color space identification information. The edited image 120 is converted into a space (S212). This operation is the same as step S104 described in FIG. However, the color space conversion unit 600 converts information (bitmap or the like) indicating the edited image 120 reproduced by the image editing processing unit 400 in step S208 into a color space identified by the designated color space identification information. . For example, when output in the A color space is specified, the color space conversion unit 600 uses the color A based on the color conversion information 210 for the edited image 120 shown in FIG. 3C reproduced in the S color space. Convert to space and output. In this case, the edited image 120 output after the conversion is an image approximated to FIG.

  As a result, even if the color space of the original image 110 and the color space of the editing history information 130 are different, the consistency between these different color spaces is achieved. Therefore, the edited image is reproduced by faithfully reproducing the image editing processing performed by the user. 120 can be generated and output according to the designated color space.

  On the other hand, if it is determined in step S210 that the designation of the color space for outputting the image has not been received (S210: No), step S212 is skipped and step 214 is executed.

  The image editing processing unit 400 outputs the edited image 120 (S214). And this flowchart is complete | finished. More specifically, the image editing processing unit 400 displays the edited image 120 on, for example, the image editing processing screen of the display 14 using information (bitmap or the like) indicating the edited image 120 expanded in the memory. .

  When the edited image 120 is displayed on the display 14, if the color space conversion unit 600 determines that the designation of the color space identification information has been received (S210: Yes), the color space conversion unit 600 stores the specification in the memory. Information (bitmap or the like) indicating the developed edited image 120 is further converted (S212). Thus, when the edited image 120 is output to an output device such as a printer, the edited image 120 can be converted into a color space corresponding to the profile of the output device.

  In this case (S210: Yes), the color space conversion unit 600 displays information indicating the edited image 120 to be newly converted in a memory area different from the information (bitmap or the like) indicating the edited image 120 expanded in the memory. (Bitmap or the like) is preferably developed.

  Note that the color space conversion unit 600 or the image editing processing unit 400 may store the pixel values of the original image 110 or the edited image 120 converted into another color space in the image storage unit 100. The color space conversion unit 600 or the image editing processing unit 400 displays a “save” button on the color space designation image or the like that accepts from the user that the converted pixel value is to be stored in the image storage unit 100. When the “” button is clicked, the pixel values of the original image 110 or the edited image 120 converted to another color space may be stored in the image storage unit 100.

  As described above, according to the present embodiment, even if the color space of the original image 110 and the color space of the editing history information 130 are different, these different color spaces are aligned with the color space when the image editing process is performed. The edited image 120 can be generated and output more faithfully by reproducing the image editing process applied by.

  As another embodiment, when the color space of the original image 110 and the color space of the editing history information 130 are different, these different color spaces may be aligned with the color space of the original image 110. As a result, the color space of the original image 110 is adopted, and the image editing process performed by the user can be reproduced to generate and output the edited image 120. Furthermore, when the color space of the original image 110 and the color space of the editing history information 130 are different, these different color spaces may be aligned by converting them into a third color space different from these color spaces. . Thus, the edited image 120 can be generated and output by reproducing the image editing process performed by the user according to the color space of the output destination.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

An image processing apparatus 10 is shown as an example. A block diagram of the main body 12 is shown as an example. FIG. 3 schematically shows the display of the original image 110 or the retouched image. An example of the information stored in the image storage unit 100 is schematically shown. An example of an operation for storing the editing history information 130 is shown in a flowchart. An example of an operation for outputting the edited image 120 is shown in a flowchart.

Explanation of symbols

10 image processing apparatus, 12 main body, 14 display, 16 keyboard, 18 mouse, 20 storage medium, 30 digital camera, 40 scanner, 100 image storage unit, 110 original image, 120 edited image, 122 edited image, 130 edited history information, 200 color conversion information storage unit, 210 color conversion information, 300 color space information acquisition unit, 400 image editing processing unit, 402 pixel region, 404 pixel region, 500 editing history generation unit, 600 color space conversion unit

Claims (8)

A program for controlling an image processing apparatus that generates an edited image obtained by performing image editing processing on an original image, the image processing apparatus including:
A procedure for obtaining color space identification information for identifying a color space representing the original image;
A procedure for performing an image editing process on the original image;
Color history identification information for identifying a color space used for the image editing process and designation of a color used for the editing process, and editing history information indicating a history of the image editing process are generated in association with the original image. procedure,
When the color space identification information is read from the editing history information, and the color space identification information acquired for the original image does not match the color space identification information read from the editing history information, the same color Procedures to convert to space, and
A program that, after conversion of the color space, reproduces an image editing process based on the editing history information on the original image to generate and output the edited image.   In the procedure for outputting the edited image, when the designation of color space identification information indicating the color space for outputting the edited image is received, the edited image is displayed in the color space identified by the received color space identification information. The program according to claim 1, further comprising: a procedure for converting and outputting.   The program according to claim 1 or 2, wherein, in the procedure of converting the color space, the color space of the original image is converted to the color space of the editing history information.   The program according to claim 1 or 2, wherein, in the procedure of converting the color space, a color space of the editing history information is converted to a color space of the original image.   In the procedure of converting the color space, the color space of the editing history information and the color space of the original image are different from the color space of the editing history information or the color space of the original image. The program according to claim 1 or 2, wherein the program is converted into a program. The procedure for performing the image editing process includes a patch process for extracting a part of the original image and pasting it on the other part of the original image,
The procedure for generating the editing history information includes color space identification information indicating the color space used in the patch processing in association with the partial bitmap data of the original image extracted in the patch processing. The program according to claim 1, which is included in the editing history information. An image processing method for generating an edited image obtained by editing an original image,
Obtaining color space identification information for identifying a color space representing the original image;
Image editing processing is performed on the original image,
Color space identification information for identifying a color space used for the image editing process, and designation of a color used for the editing process, and editing history information indicating a history of the image editing process are generated in association with the original image ,
When the color space identification information is read from the editing history information, and the color space identification information acquired for the original image does not match the color space identification information read from the editing history information, the same color Convert to space,
An image processing method for generating and outputting the edited image by reproducing the image editing process based on the editing history information for the original image after the color space conversion. An image processing apparatus for generating an edited image obtained by performing image editing processing on an original image,
A color space information acquisition unit for acquiring color space identification information for identifying a color space expressing the original image;
An image editing processing unit that performs image editing processing on the original image;
Color history identification information for identifying a color space used for the image editing process and designation of a color used for the editing process, and editing history information indicating a history of the image editing process are generated in association with the original image. An editing history generator,
When the color space identification information is read from the editing history information, and the color space identification information acquired for the original image does not match the color space identification information read from the editing history information, the same color A color space conversion unit for converting to space,
The image editing processing unit generates the edited image by reproducing the image editing processing based on the editing history information for the original image after the color space conversion by the color space converting unit, and outputs the edited image. Image processing device.

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