JP4343960B2 - Information processing apparatus and information processing method - Google Patents

Description

  The present invention relates to an information processing apparatus and an information processing method for performing image processing, for example.

  For example, when an image synthesized on a personal computer is output by a printer, image data represented by luminance signals R (red), G (green), and B (blue) is used as a color signal Y (yellow) used by the printer. , M (magenta), C (cyan), and K (black) as necessary. In this conversion, first, color correction (RGB 8 bits to RGB 8 bits) of RGB data is performed, then color conversion (RGB 8 bits to CMYK 8 bits) is performed, gradation correction (CMYK 8 bits to CMYK 8 bits) is performed, and quantization processing is performed. (CMYK 8 bits to CMYK 1 bits).

  In these conversions or corrections, a lookup table prepared in advance is used. Each processing module that performs conversion or correction is structured to hold its own lookup table, and each module uniquely searches the lookup table according to the print mode specified by the print quality, quantization method, etc. It was searched and loaded by the procedure, and the process was executed.

  In other words, the conventional look-up table is generally accessed in the library module as part of the library module that performs correction and conversion for image processing. Also, the table search method is often unique to the library module.

  However, each module has its own look-up table, so when a print mode is added, deleted, or changed, all modules are looked up corresponding to the changed print mode. Tables must be added, deleted, and changed for consistency. If there is a mistake in even one module, normal printing may not be possible.

  In other words, in the conventional format in which the lookup table is independently accessed inside the library module, it is necessary to recompile the library module each time even if only the lookup table is changed, and debugging work at the development stage, etc. Was the cause of the decline in efficiency. In addition, in printer drivers that consist of multiple library modules divided by function, changes to the lookup table often affect multiple library modules, which not only reduces efficiency but also causes printer driver quality degradation. It was.

  The present invention has been made in view of the above-described conventional example. The object of the present invention is to easily maintain the lookup table independently of the processing itself using the lookup table, and to use each lookup table. An object of the present invention is to provide an information processing apparatus and an information processing method which prevent loss of consistency between modules.

In order to achieve the above object, the present invention has the following configuration. That is, an information processing apparatus including a printer driver that generates a print image to be printed by a printer,
Color correction actual table corresponding to color correction table ID, color conversion actual table corresponding to color conversion table ID, search table including color correction table ID and color conversion table ID corresponding to print mode A database containing
The search table is searched to obtain a color correction table ID and a color conversion table ID corresponding to the print mode, and correspond to the color correction table ID and the color conversion table ID obtained by searching the actual table. A first execution module that acquires a real table for color correction and a real table for color conversion, and executes color conversion and color correction processing using the acquired real table for color correction and the real table for color conversion;

Alternatively, from another viewpoint, the present invention has the following configuration. That is, an information processing apparatus including a printer driver that generates a print image to be printed by a printer,
The actual table of gradation correction corresponding to the table ID of gradation correction , the actual table of dither matrix information corresponding to the table ID of dither matrix information, and the gradation correction table ID and dither matrix table ID corresponding to the print mode A database including a search table including;
The search retrieves the table ID table ID and the dither matrix information table search to the corresponding gradation correction to the printing mode, the table ID and the dither matrix information of the gradation were obtained real table searches the correction table A real table of tone correction and a real table of dither matrix information corresponding to the ID are acquired, and tone correction and quantization processing are executed using the acquired real table of tone correction and real table of dither matrix information. 2 execution modules.

Alternatively, from another viewpoint, the present invention has the following configuration. That is, an information processing apparatus including a printer driver that generates a print image to be printed by a printer,
And real table of color correction corresponding to the table ID of the color correction, the actual table of the color conversion corresponding to the table ID of the color conversion, the actual table of the gradation correction corresponding to the table ID of the gradation correction, dither matrix information And a search table including a color correction table ID, a color conversion table ID, a gradation correction table ID, and a dither matrix information table ID corresponding to the print mode. Including a database;
Gets the table ID table ID and the color conversion of the color correction corresponding to the print mode by searching for the search table, corresponding to the table ID and the color conversion table ID of the color correction to get the real table is searched a first execution module that executes color conversion and color correction processing using the actual table of colors to get the real table in the real table and the color conversion of the correction, the obtained real table and the color conversion of the color correction,
The search retrieves the table ID table ID and the dither matrix information table search to the corresponding gradation correction to the printing mode, the table ID and the dither matrix information of the gradation were obtained real table searches the correction table A real table of tone correction and a real table of dither matrix information corresponding to the ID are acquired, and tone correction and quantization processing are executed using the acquired real table of tone correction and real table of dither matrix information. 2 execution modules.

  According to the present invention, maintenance of a real table such as a lookup table can be easily performed independently of a processing module using the same, and the consistency between processing modules using the real table is prevented from being lost. it can. In addition, the database can be changed efficiently and easily.

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

[First Embodiment]
FIG. 1 is a block diagram showing a configuration of an image processing system showing an embodiment of a data conversion apparatus of the present invention.

  The output device 205 can be in the form of a color printer, for example, and uses four colors of ink of yellow (Y), magenta (M), cyan (C), and black (K) to output a color print on a print sheet. Is what you do. However, the output of the color printer may be 6 colors or 7 colors, but in this embodiment, description will be made with 4 colors. The print data composed of the density data of Y, M, C, and K used in the output device 205 is obtained by image processing executed by the control device 201. The image processing includes color correction described below. Color conversion, tone correction, quantization processing, and the like.

  FIG. 16 is a perspective view of an ink jet printer IJRA which is an example of the output device 205. In the drawing, the carriage HC engaged with the spiral groove 5004 of the lead screw 5005 that rotates via the driving force transmission gears 5011 and 5009 in conjunction with the forward and reverse rotation of the drive motor 5013 has a pin (not shown). And is reciprocated in the directions of arrows a and b. On this carriage HC, Y (yellow), M (magenta), C (cyan), and Bk (black) ink jet cartridges IJC are mounted. The paper pressing plate 5002 presses the paper against the platen 5000 over the moving direction of the carriage HC. The photocouplers 5007 and 5008 confirm the presence of the carriage lever 5006 in this region, and detect a home position for switching the rotation direction of the motor 5013 and the like. A member 5016 is a member that supports a cap member 5022 that caps the front surface of the recording head, and a suction unit 5015 is a unit that sucks the inside of the cap, and performs suction recovery of the recording head through an opening 5023 in the cap. A member 5019 is a member that enables the cleaning blade 5017 to move in the front-rear direction, and these are supported by a main body support plate 5018. The blade 5017 is not limited to this form, and a known cleaning blade can be applied to this example. A lever 5021 is a lever for starting suction for suction recovery. The lever 5021 moves as the cam 5020 engaged with the carriage moves, and the driving force from the drive motor is moved by a known transmission means such as clutch switching. Be controlled.

  In FIG. 1, a control device 201 has a CPU, and executes data processing relating to the present system, such as image processing to be described later and initial processing therefor, and operation control of mechanical components of each part. The storage device 203 is composed of an entire external storage device such as a memory such as a ROM and a RAM, a hard disk, and a floppy (registered trademark) disk. And the calculation category are stored.

  For example, an image read by a scanner is stored in the storage device 203, and the operator of this system operates an operation from the input device 202 such as a keyboard or a mouse on an image displayed on the display device 204 such as a CRT. An image to be printed out by the output device 205 can be produced by performing desired processing or the like by input.

  Thus, the image produced by this system is generally gradation data of each of the luminance signals R, G, and B, and image processing is performed in order to use this as print data of the output device 205.

  Of course, the application of the present invention is not limited to the system as described above. For example, it is well known that image processing (color correction, color conversion, gradation correction and quantization processing) is performed in an apparatus such as a copying machine, and the present invention is applied to such an apparatus or system. Can be applied.

  The color correction processing here is color correction processing from 8 bits for each color of RGB to 8 bits for each color of R′G′B ′. The color conversion process is a color conversion process from 8 bits for each color of R′G′B ′ to 8 bits for each color of CMYK. The gradation correction processing is correction processing from 8 bits for each color of CMYK to 8 bits for each color of C′M′Y′K ′. The quantization processing is quantization processing from 8 bits for each color of C′M′Y′K ′ to 1 bit for each color of cmyk. Color correction, color conversion, gradation correction, and quantization processing at this time use a lookup table (LUT). These processes are executed by a printer control program prepared for each type of printer, generally called a printer driver.

<Database file structure>
2 and 3 are conceptual diagrams of the present invention. 2, the color correction / color conversion module 206 includes a search routine unit (table ID search unit) 212 and a color correction / color conversion processing unit 213 for obtaining all table IDs for the print mode. In FIG. 3, the tone correction / quantization module 208 includes a search routine unit (table ID search unit) 212 and a tone correction / quantization processing unit 214 for obtaining all table IDs for the print mode. It is out. The “search routines for obtaining all table IDs for the print mode” included in both are the same functions. 2 and 3, a database 207 is a database file containing printer model-specific information, and is exactly the same as in FIGS. The database file 207 includes a search table LUT1 (209) including table IDs necessary for various modules corresponding to a print mode specified by user interface (UI) information, and an actual table LUT2 (used by various modules). 210, 211). The UI information is information including printing conditions input by the user.

  A table 215 in FIG. 4 is a diagram illustrating an example of the LUT 1 (209) in FIG. 2, and is a plurality of LUTs 1 (a table including all table IDs corresponding to the print mode). In FIG. 4, the table 215 includes a print mode section 215a and a table ID section 215b. In the print mode section 215a, combinations of paper types (plain paper / OHP paper), quantization methods (error diffusion / dither), and print quality (highest quality / medium quality) are listed as keys. The table ID portion 215b includes a table ID that is an identifier of each of the color correction table, the color conversion table, the gradation correction table, and the dither matrix table in association with the print mode.

  A table 216 in FIG. 5 is a diagram illustrating an example of the LUT2 (211) in FIG. 3, and is a plurality of LUT2 (color correction table ID, color conversion table ID). 6 is a plurality of LUTs 2 (tone correction table ID, dither matrix table ID). Both include table ID portions 216a and 217a and real table portions 216b and 217b.

<Search database>
In order to obtain an LUT to be used for image correction or conversion, the printer driver first determines the print mode (for example, paper type: plain paper, print quality: highest quality, quantization: error diffusion) from the UI settings, The print mode is passed to the color correction / color conversion module. Next, the color correction / color conversion module searches the passed print mode with the table ID search unit 212 included in the color correction / color conversion module, and the color correction table ID and color conversion corresponding to the passed print mode. The table LUT1 including the table ID is loaded from the database file 209. Next, the color correction / color conversion module searches the table 210 for the color correction / color conversion table ID included in the loaded table, and the actual table corresponding to the table ID is actually used for the color correction / color conversion module. Are loaded from a plurality of LUT2 (210) as the table LUT2 used in FIG. Then, normal color correction / color conversion processing is performed using the loaded LUT 2.

  Similarly, the gradation correction / quantization module performs the same process. That is, the printer driver passes the print mode determined from the UI setting (for example, paper type: plain paper, print quality: highest quality, quantization: error diffusion) to the color correction / color conversion module. Next, the gradation correction / quantization module is a table LUT1 including a gradation correction table ID and a dither matrix table ID corresponding to the determined print mode by the table ID search unit 212 included in the gradation correction / quantization module. Are loaded from the database file 209. Next, the table 211 is searched by the gradation correction / dither matrix table ID included in the loaded table, and the table LUT2 actually used in the gradation correction / quantization module is loaded from the plurality of LUT2 (211). To do. Then, normal gradation correction / quantization processing is performed.

  FIG. 7 is a flowchart showing a processing procedure at the time of printing by the printing system of FIG. In the figure, steps S701 to S703 are processing by the printer driver. When printing is instructed by the user and necessary information (for example, paper type, print quality, quantization method) is input, the process of FIG. 7 is started. First, color correction / color conversion processing is performed on image data to be printed (step S701). Next, gradation correction / quantization is performed (step S702), and the data is compressed or the data format is converted into a format interpretable by the printer as required (step S703). When these processes are completed by the printer driver, the image data is sent to a printer as shown in FIG. 16 and printed there (step S704).

  FIG. 8 is a flowchart of a processing procedure performed by the color correction / color conversion module 206, and corresponds to step S701 in FIG. First, the table ID search unit 212 searches the table 209 for a table ID using the print mode as a key (step S801). When the table ID is obtained, the table (plurality of LUTs 2) 210 is searched with the table ID, and the color correction table and color conversion table corresponding to the table ID are loaded into the memory (step S802). Color correction and color conversion are executed using the loaded color correction table and color conversion table (step S803).

  FIG. 9 is a flowchart of a processing procedure performed by the gradation conversion / quantization module 208, and corresponds to step S702 in FIG. First, the table ID search unit 212 searches the table 209 for a table ID using the print mode as a key (step S901). When the table ID is obtained, the table (plurality of LUTs 2) 211 is searched with the table ID, and the gradation conversion table and the quantization table (dither matrix table) corresponding to the table ID are loaded into the memory (step S902). . Color correction and color conversion are executed using the loaded gradation conversion table and quantization table (step S903).

  FIG. 10 is a flowchart of the table ID search process in step S801 in FIG. 8 and step S901 in FIG. First, a print mode is determined from the input UI information (step S1001), and LUT1 is searched in the determined print mode to obtain all corresponding table IDs (step S1002). This procedure is a processing procedure by the table ID search unit 212.

  As described above, the lookup table is held as a database independent of each correction module and conversion module, and each correction module and conversion module searches the lookup table to obtain a lookup table corresponding to the print mode. Then, correction and conversion are executed.

  FIG. 11 is a diagram illustrating an example in which the contents of the lookup table are changed. In FIG. 11, the lookup table 2181 corresponding to the table ID of the color correction table 01 in the table 218 is updated. For example, let's assume that the tint is corrected for a certain print mode as the printer driver is improved. In this case, in the conventional printer driver, the color correction module and the color conversion module respectively hold the color correction table and the color conversion table, that is, each table is referenced only by the module that uses it. It was necessary to change those modules as the color was corrected. On the other hand, if the present invention is applied, the color correction can be performed by changing only the color correction table and the color conversion table included in the database as shown in FIG. 11 without changing the color correction module or the color conversion module. Can be done.

  FIG. 12 is a diagram showing the database maintenance module 1201 and the database 207. Also in the maintenance, in order to acquire the maintenance target table, the table ID search unit 212 first searches the table ID, and acquires the lookup table by the table ID. The table maintenance module 1202 performs necessary maintenance on the acquired table and writes it back to the original position corresponding to the table ID.

  FIG. 13 is a flowchart showing a table maintenance procedure. First, the table ID is searched according to the procedure of FIG. 10 (step S1301), and the LUT2 to be maintained, that is, the substance of the table is searched and loaded by the acquired table ID (step S1302). The loaded table is updated according to the user's operation or overwritten with a separately created table (step S1303). Finally, the updated lookup table is written back to the database as a table corresponding to the table ID (step S1304).

  As described above, in this embodiment, the database file is divided into two groups of LUT1 and LUT2, and the LUT1 includes a table ID for determining the LUT2, so that the LUT2 has each module using it. Accessed indirectly from. By doing so, the color correction / color conversion module and the gradation correction / quantization module do not directly access the LUT 2 therein.

  For this reason, for example, a situation in which the address of the LUT referred to in the module is changed in accordance with the maintenance of the database does not occur, and the maintenance of the database can be performed independently of the maintenance of the module that uses the database. it can. Further, it is not necessary to change each correction module or conversion module for maintenance of the lookup table, and the labor required for database maintenance such as labor for modification and labor for testing can be saved. Further, since there is no need to change each module, it is possible to prevent inconsistency that a certain module has been updated by the LUT but has not been updated by another module.

  Further, for example, for a plurality of types of printers, an image processing module in a printer driver program for controlling them is shared, and other control modules and image processing such as color correction, color conversion, gradation correction, and quantization are related. For example, a lookup table may be provided for each type of printer. In this case, a common image processing module is used, but a lookup table corresponding to the printer model is loaded. By doing so, it is possible to save time and cost for developing an image processing module program for each model.

  In this embodiment, the table entry is described as a lookup table used for image processing. However, not only image processing but also data and tables registered in a database are used from a program. The present invention can be applied by using as a database entry.

[Second Embodiment]
FIG. 14 is a schematic diagram showing a configuration example of a printer driver 200 according to the second embodiment of the present invention.

  The printer driver 200 generates print data based on the image data acquired from the operating system 100 and transmits the print data to the printer 500. The printer driver 200 includes a core module 300 that mainly exchanges data with the operating system 100 and the printer 500, controls a user interface, and the like, and a library divided by function such as an image processing module 301 and a binarization processing module 302. Consists of modules. In the case of a printer driver, the library module is called from the core module 300. At this time, information such as the type of printing paper and the printing mode is received from the core module 300. Based on various information received from the core module 300, the library module searches the database 400 for a lookup table, an output gamma table, and the like, and performs processing so as to obtain an appropriate print result.

  Here, the database 400 is a combination of lookup tables required by the image processing module 301, the binarization processing module 302, etc., and is the database in the first embodiment exemplified as FIGS. With the same structure.

  Next, the configuration of the library module will be described by taking an image processing module as an example.

  FIG. 15 is a schematic diagram illustrating a configuration example of an image processing module. The image processing module 301 includes an image processing unit 600, a data storage unit 601, and a database search unit 602. The image processing unit 600 inputs various types of printer information received from the core module 300 to the database search unit 602. The database search unit 602 performs the same processing as the table ID search unit in the first embodiment. That is, the database search unit 602 searches the database 400 based on the received information and outputs the search result to the image processing unit 600. A table ID is obtained as a search result. The image processing unit 600 reads look-up table data necessary for image processing from the database 400 based on the search result and stores it in the data storage unit 601. Thereafter, image data is received from the core module 300, image processing is performed based on the look-up table data stored in the data storage unit 601, and the image data subjected to the image processing is output to the core module 300.

  The database search unit 602 is installed not only in the image processing module 301 but also in other library modules, and can search one database from a plurality of library modules.

  Here, consider a case where a plurality of printers 1 and 2 are connected to a personal computer or the like and their driver programs are installed. First, when a printer driver is installed for the printer 1, modules such as the core module 300, the image processing module 301, the binarization processing module 302, and the database 400 are installed.

  Next, when the printer driver is installed for the printer 2, the core module 300, the image processing module 301, the binarization processing module 302, and the like are the same as the printer 1, so they are not installed. 401 is installed.

  When the user selects a printer at the time of printing instruction when executing the application program, for example, if the printer 1 is selected, the file name of the database 400 corresponding to the printer 1 is changed to an image processing module, a binarization processing module, or the like. The database corresponding to the selected printer can be accessed by being set in the database search unit 602 of each module.

  Note that the database search unit 602 may use any search method. Further, since the database 400 is separated from each library module, it is not necessary to recompile the image processing module 301 when making changes in the database, for example, when changing the look-up table data read by the image processing module 301. , Library modules and databases can be developed efficiently.

  In this way, even if a database change affects multiple library modules, such as the addition of printing paper, there is no need to recompile each affected library module, making database changes efficient and easy. Can be done.

  In addition, the database can be changed efficiently and easily as the driver program is upgraded.

[Other Embodiments]
Note that the present invention can be applied to a system including a plurality of devices (for example, a host computer, an interface device, a reader, and a printer), and a device (for example, a copying machine and a facsimile device) including a single device. You may apply to.

  Another object of the present invention is to supply a system or apparatus with a storage medium (or recording medium) that records the program codes of the procedures of FIGS. 7 to 10 and 13 to realize the functions of the above-described embodiments. Alternatively, this can also be achieved by reading and executing the program code stored in the storage medium by the computer (or CPU or MPU) of the apparatus. In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the storage medium storing the program code constitutes the present invention. Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an operating system (OS) running on the computer based on the instruction of the program code. A case where part or all of the actual processing is performed and the functions of the above-described embodiments are realized by the processing is also included.

  Furthermore, after the program code read from the storage medium is written into a memory provided in a function expansion card inserted into the computer or a function expansion unit connected to the computer, the function is determined based on the instruction of the program code. The case where the CPU of the expansion card or the function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing is also included.

It is a block diagram which shows the structure of the image processing system of 1st Embodiment. It is a figure which shows the relationship between a database file and a color correction and color conversion module. It is a figure which shows the relationship between a database file and a gradation correction | amendment / quantization module. It is a conceptual diagram of several LUT1. It is a conceptual diagram of the real table of color correction and color conversion of a plurality of LUTs. It is a conceptual diagram of the real table of the gradation correction / dither matrix of a plurality of LUTs. It is a flowchart of a printing processing procedure. It is a flowchart of a color correction / color conversion process. It is a flowchart of a gradation correction / quantization process. It is a flowchart of table ID search. It is a conceptual diagram of a real table of color correction / color conversion of a plurality of LUTs 2 whose contents have been changed. It is a figure which shows the relationship between a database file and a database maintenance module. It is a flowchart of database maintenance. FIG. 9 is a schematic diagram illustrating a configuration example in a printer driver according to a second embodiment. It is the schematic which shows the structural example of an image processing module. It is a figure which shows the structure of an inkjet printer.

Claims (9)

An information processing apparatus including a printer driver that generates a print image to be printed by a printer,
Color correction actual table corresponding to color correction table ID, color conversion actual table corresponding to color conversion table ID, search table including color correction table ID and color conversion table ID corresponding to print mode A database containing
The search table is searched to obtain a color correction table ID and a color conversion table ID corresponding to the print mode, and correspond to the color correction table ID and the color conversion table ID obtained by searching the actual table. A first execution module that acquires a color correction real table and a color conversion real table, and executes color conversion and color correction processing using the acquired color correction real table and color conversion real table; Information processing apparatus. An information processing apparatus including a printer driver that generates a print image to be printed by a printer,
The actual table of gradation correction corresponding to the table ID of gradation correction, the actual table of dither matrix information corresponding to the table ID of dither matrix information, and the gradation correction table ID and dither matrix table ID corresponding to the print mode A database including a search table including;
The search table is searched to obtain the gradation correction table ID and dither matrix information table ID corresponding to the print mode, and the gradation correction table ID and dither matrix information table obtained by searching the actual table. A real table of tone correction and a real table of dither matrix information corresponding to the ID are acquired, and tone correction and quantization processing are executed using the acquired real table of tone correction and real table of dither matrix information. An information processing apparatus comprising two execution modules. An information processing apparatus including a printer driver that generates a print image to be printed by a printer,
Color correction actual table corresponding to the color correction table ID, color conversion actual table corresponding to the color conversion table ID, gradation correction actual table corresponding to the gradation correction table ID, and dither matrix information And a search table including a color correction table ID, a color conversion table ID, a gradation correction table ID, and a dither matrix information table ID corresponding to the print mode. Including a database;
The search table is searched to obtain a color correction table ID and a color conversion table ID corresponding to the print mode, and correspond to the color correction table ID and the color conversion table ID obtained by searching the actual table. A first execution module that acquires a color correction real table and a color conversion real table, and executes color conversion and color correction processing using the acquired color correction real table and color conversion real table;
The search table is searched to obtain the gradation correction table ID and dither matrix information table ID corresponding to the print mode, and the gradation correction table ID and dither matrix information table obtained by searching the actual table. A real table of tone correction and a real table of dither matrix information corresponding to the ID are acquired, and tone correction and quantization processing are executed using the acquired real table of tone correction and real table of dither matrix information. An information processing apparatus comprising two execution modules. A color correction actual table corresponding to the color correction table ID, a color conversion actual table corresponding to the color conversion table ID, a color correction table ID corresponding to the print mode, and a search table including a color conversion table ID. An information processing method in an information processing apparatus including a database including a printer driver that generates a print image to be printed by a printer,
Searching the search table to obtain a color correction table ID and a color conversion table ID corresponding to the print mode;
Obtaining a color correction real table and a color conversion real table corresponding to the color correction table ID and the color conversion table ID obtained by searching the real table;
And a step of performing color conversion and color correction processing using the acquired color correction real table and color conversion real table. Retrieval including the actual table of gradation correction corresponding to the table ID of gradation correction, the actual table of dither matrix information corresponding to the table ID of dither matrix information, the gradation correction table ID corresponding to the print mode, and the dither matrix table ID An information processing method in an information processing apparatus comprising a database including a table and a printer driver that generates a print image to be printed by a printer,
Searching the search table to obtain a table ID for gradation correction and a table ID for dither matrix information corresponding to the print mode;
Obtaining a tone correction real table and a dither matrix information real table corresponding to the tone correction table ID and dither matrix information table ID obtained by searching the real table;
And a step of executing gradation correction and quantization processing using the acquired actual table of gradation correction and the actual table of dither matrix information. Color correction actual table corresponding to color correction table ID, color conversion actual table corresponding to color conversion table ID, gradation correction actual table corresponding to gradation correction table ID, and table ID of dither matrix information A search table including a real table of dither matrix information corresponding to, and a color correction table ID corresponding to the print mode, a color conversion table ID, a gradation correction table ID, and a table ID of dither matrix information; An information processing method in an information processing apparatus comprising a printer driver that generates a print image to be printed by a printer,
Searching the search table to obtain a color correction table ID and a color conversion table ID corresponding to the print mode;
Obtaining a color correction real table and a color conversion real table corresponding to the color correction table ID and the color conversion table ID obtained by searching the real table;
Performing color conversion and color correction processing using the acquired color correction real table and color conversion real table;
Searching the search table to obtain a table ID for gradation correction and a table ID for dither matrix information corresponding to the print mode;
Obtaining a tone correction real table and a dither matrix information real table corresponding to the tone correction table ID and dither matrix information table ID obtained by searching the real table;
And a step of executing gradation correction and quantization processing using the acquired actual table of gradation correction and the actual table of dither matrix information. A computer-readable storage medium storing a program to be executed by a computer including a printer driver that generates a print image to be printed by a printer,
Color correction actual table corresponding to color correction table ID, color conversion actual table corresponding to color conversion table ID, search table including color correction table ID and color conversion table ID corresponding to print mode A database containing
The search table is searched to obtain a color correction table ID and a color conversion table ID corresponding to the print mode, and correspond to the color correction table ID and the color conversion table ID obtained by searching the actual table. Acquiring a color correction real table and a color conversion real table, and causing the computer to function as a first execution module that executes color conversion and color correction processing using the acquired color correction real table and color conversion real table A storage medium that stores the program. A computer-readable storage medium storing a program to be executed by a computer including a printer driver that generates a print image to be printed by a printer,
The actual table of gradation correction corresponding to the table ID of gradation correction, the actual table of dither matrix information corresponding to the table ID of dither matrix information, and the gradation correction table ID and dither matrix table ID corresponding to the print mode A database including a search table including;
The search table is searched to obtain the gradation correction table ID and dither matrix information table ID corresponding to the print mode, and the gradation correction table ID and dither matrix information table obtained by searching the actual table. A real table of tone correction and a real table of dither matrix information corresponding to the ID are acquired, and tone correction and quantization processing are executed using the acquired real table of tone correction and real table of dither matrix information. 2. A storage medium storing a program for causing a computer to function as an execution module. A computer-readable storage medium storing a program to be executed by a computer including a printer driver that generates a print image to be printed by a printer,
Color correction actual table corresponding to the color correction table ID, color conversion actual table corresponding to the color conversion table ID, gradation correction actual table corresponding to the gradation correction table ID, and dither matrix information And a search table including a color correction table ID, a color conversion table ID, a gradation correction table ID, and a dither matrix information table ID corresponding to the print mode. Including a database;
The search table is searched to obtain a color correction table ID and a color conversion table ID corresponding to the print mode, and correspond to the color correction table ID and the color conversion table ID obtained by searching the actual table. A first execution module that acquires a color correction real table and a color conversion real table, and executes color conversion and color correction processing using the acquired color correction real table and color conversion real table;
The search table is searched to obtain the gradation correction table ID and dither matrix information table ID corresponding to the print mode, and the gradation correction table ID and dither matrix information table obtained by searching the actual table. A real table of tone correction and a real table of dither matrix information corresponding to the ID are acquired, and tone correction and quantization processing are executed using the acquired real table of tone correction and real table of dither matrix information. 2. A storage medium storing a program for causing a computer to function as an execution module.

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