JP2002342048A - Printer device, image formation system and control method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printer driver, an image formation system and the control method therefor with which an appropriate color profile is automatically selected corresponding to an image to be printed. SOLUTION: When performing printing, a user first inputs a printing instruction from an application program 3. The application program 3 sends the printing instruction to a printer driver 4. The printer driver 4 which receives the printing instruction extracts keywords for transmitted intermediate printing data, reads a set point by collating the keywords with a keyword/profile relation chart 42, obtains the product of the point and the number of the extracted keywords and selects the color profile related to the keyword for which the value of the product proves the largest. Then, the color profile and converted printing data are transmitted to the printer. The printer 5 forms the images of respective pages by using the printing data, adjusts colors on the basis of the color profile and prints the individual pages.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer driver and an image forming system for controlling an image forming apparatus so as to perform color correction based on a color profile when forming an image, and a control method therefor.

[0002]

2. Description of the Related Art Conventionally, in image forming, color correction is performed using a color profile in order to reproduce color more faithfully in a document image. In addition, taking a step further, the user selects a profile to be used for color correction not only to improve color reproducibility but also to make the data look "better" depending on the type of data to be printed. Some have the function of performing

[0003] For example, when printing a portrait, a color profile that enhances the development of skin color is used. When printing food, a color profile that emphasizes the warm color system is used. Rather, a color profile that emphasizes sharpness is selected.

[0004] As a first example of the prior application similar to the present invention in the technical field, there is "Device Information Control Method and Apparatus and Storage Medium" disclosed in JP-A-2000-322373. In this method, the control device receives a device profile describing the specifications of a device from the device, and displays the specifications of the device read from the device profile on a display unit.

Japanese Patent Application No. Hei 7-339559 (Japanese Patent Application Laid-Open No. Hei 9-181927), which was previously filed by the present applicant, is a prior art example 2 of a similar technical field to the present invention. Image processing system ". This is because, in a color image processing system that outputs a plurality of color images to an output device, a color conversion process is performed according to an output device to be used by a profile of each output device and a conversion unit that performs a color conversion process using the profile. Is switched.

[0006]

However, in the conventional color correction method, selection of a profile to be used for color correction is left to the user's voluntary selection, and most users remain as they are ( Because it prints with (default) settings, it was hard to say that even if there were multiple profile options, they were being used effectively.

[0007] In the first example of the prior application, a plurality of profiles to be used for color correction are prepared, and an optimum print result is obtained by selecting one of the profiles. Because of the operation, it was troublesome and inconvenient.

Further, the invention of the prior application 2 is common in that a profile used for color correction is automatically selected, but the type of the profile does not correspond to the purpose of the data to be printed, but corresponds to the type of the printing apparatus. Therefore, in order to perform correction in accordance with the data to be printed, the user must input each time, which is inconvenient.

The present invention has been made in view of such circumstances, and has the following objects. A first object is to provide a printer driver and an image forming system capable of selecting an appropriate color profile according to data of an image to be printed without special consideration of a user during color printing, and a control method thereof. It is to provide.

A second object is to select an appropriate color profile according to the name (file name or the like) of the image to be printed from the data of the image to be printed without special awareness of the user during color printing. It is an object of the present invention to provide a printer driver, an image forming system, and a control method therefor. That is, a printer driver and an image forming system that allow a user to select an appropriate color profile without special consideration, regardless of the type of image information of the image to be printed, and The purpose is to provide a control method therefor.

A third object is to provide a printer driver and an image forming apparatus capable of selecting an appropriate color profile according to data of an image to be printed for each page without special consideration of a user during color printing. It is to provide a system and a control method thereof.

A fourth object is to provide a color profile suitable for data of an image to be printed even for an image having little or no character information without special consideration of a user at the time of color printing. An object of the present invention is to provide a printer driver and an image forming system that can be selected, and a control method thereof.

[0013]

To achieve the above object, the present invention has the following features. According to a first aspect of the present invention, there are provided a plurality of color profiles, and an optimum color profile is selected from the plurality of color profiles using data of an image to be printed.

According to a second aspect of the present invention, there is provided a keyword / keyword recording a keyword associated with each of a plurality of color profiles together with a name of the color profile.
The method includes providing profile recording data, and extracting the keyword included in the keyword / profile recording data from the name of the image among the image data, and selecting a color profile associated with the keyword as an optimal color profile. It is characterized by.

According to a third aspect of the present invention, there is provided a keyword / keyword recording a keyword associated with each of a plurality of color profiles together with a color profile name.
The apparatus includes profile recording data, and the selection includes extracting a keyword / keyword included in the profile recording data from character information included in the image data, and selecting a color profile associated with the keyword as an optimal color profile. Features.

According to a fourth aspect of the present invention, the type of image data is identified, and when the character information included in the image data is small or absent, the selection is made using the result of the identification to determine the optimal color profile. Is selected.

According to a fifth aspect of the present invention, when a keyword is extracted from character information included in image data, a case where the keyword is included in the name of the image in the image data and a case where the keyword is included in the image data are included. The selection is performed by assigning different weights when the image information includes a keyword.

According to a sixth aspect of the present invention, in the fourth aspect of the invention, the identification is performed by dividing the image information of the image into a line image and a bit block in the image data, and comparing each of the line information and the bit block. Is characterized by identifying the type of

According to a seventh aspect of the present invention, in an image forming system including a host computer and an image forming apparatus that operates under the control of the host computer, the host computer has a printer driver having a plurality of color profiles, When forming an image with the image forming apparatus, the printer driver converts the data of the image into print data, selects an optimal color profile from a plurality of color profiles using the image data, and the host computer The print data and the optimal color profile selected by the printer driver are transmitted to the image forming apparatus, and the image forming apparatus performs color correction on the print data based on the optimal color profile transmitted from the host computer to perform image correction. It is characterized by forming.

According to an eighth aspect of the present invention, in the seventh aspect of the invention, the printer driver includes keyword / profile recording data in which a keyword associated with each of the plurality of color profiles is recorded together with a name of the color profile. A keyword included in the keyword / profile recording data is extracted from the name of the image from the image data, and a color profile associated with the keyword is selected as an optimal color profile.

According to a ninth aspect of the present invention, in the seventh aspect of the invention, the printer driver includes keyword / profile recording data in which a keyword associated with each of the plurality of color profiles is recorded together with a name of the color profile. A keyword included in the keyword / profile recording data is extracted from character information included in image data, and a color profile associated with the keyword is selected as an optimal color profile.

According to a tenth aspect of the present invention, when the printer driver identifies the type of image data and forms an image, if there is little or no character information included in the image data, the result of the identification is obtained. Is used to select an optimal color profile.

According to an eleventh aspect of the present invention, when a keyword is extracted from character information included in image data, the keyword is included in the name of the image in the image data, and the keyword is extracted in the image data. The selection is performed by assigning different weights when the image information includes a keyword.

According to a twelfth aspect of the present invention, in the tenth aspect of the present invention, the identification is performed by dividing the image information of the image into a line image and a bit block in the image data, and comparing them with each other. Is characterized by identifying the type of

According to a thirteenth aspect of the present invention, there is provided a host computer comprising: a plurality of color profiles; and keyword / profile recording data in which a keyword associated with each of the plurality of color profiles is recorded together with a name of the color profile. In the control method of the image forming system including the image forming apparatus that operates under the control of the image forming apparatus, when the image forming apparatus forms an image, the host computer converts the keyword recorded in the keyword / profile recording data from the data of the image. Extract, convert image data to print data, select the optimal color profile from multiple color profiles using the extracted keywords, and form print data and the selected optimal color profile Transmitted to location, the image forming apparatus, based on an optimal color profile, which is transmitted from the host computer, and performs image forming print data and color correction.

According to a fourteenth aspect of the present invention, in the invention according to the thirteenth aspect, when the host computer extracts a keyword recorded in the keyword / profile recording data from the image data, the host computer selects the image data from the image data. Is characterized by extracting a keyword from the name.

According to a fifteenth aspect of the present invention, in the invention of the thirteenth aspect, when the host computer extracts a keyword recorded in the keyword / profile recording data from the image data, the host computer includes a character included in the image data. It is characterized in that keywords are extracted from the information.

[0028] According to a sixteenth aspect of the present invention, when the host computer extracts the keyword recorded in the keyword / profile recording data from the image data, the host computer may include a small amount or no character information included in the image data. In addition, when the type of image data is identified and an optimum color profile is selected from a plurality of color profiles, the selection is made using the result of the identification.

According to a seventeenth aspect of the present invention, in the invention of the fifteenth aspect, when the host computer extracts the keyword from the character information included in the image data, the keyword is included in the name of the image in the image data. Selection is performed by giving different weights to the case where the keyword is included and the case where the keyword is included in the image information of the image in the image data.

According to an eighteenth aspect of the present invention, in the invention according to the sixteenth aspect, the identification is performed by dividing image information of the image into a line image and a bit block in the image data, and comparing each of the line information and the bit block. Is characterized by identifying the type of

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a printer driver and an image forming system according to the present invention and a control method thereof will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a basic configuration example of an image forming system as an embodiment of the present invention. FIG.
As shown in FIG. 1, the image forming system according to the present invention includes a host computer 1 and a printing device (image forming device) 5. An operating system 2 operates on the host computer 1, and an application program 3 and a printer driver 4 operate on the operating system 2.

The basic configuration example shown in FIG. 1 is a minimum configuration and is not limited to this configuration. For example, another information device or another program may be further provided. Further, the connection between the host computer 1 and the printing device 5 may be a method of connecting only the two,
Both may be connected to a network such as a LAN.

Each part shown in FIG. 1 will be described below. In the host computer 1, a user performs various operations. Further, the host computer 1 is connected to the printing apparatus 5 by a known interface such as a network or IEEE 1284.

The operating system 2 controls the entire operation of the host computer 1.

The application program 3 operates on the operating system 2 and has a function of allowing a user to input a print instruction. This print instruction is sent to the printer driver 4 via the operating system 2.

The printer driver 4 includes the application program 3
, Via the operating system 2, and converts data in the printing operation. Also, a plurality of color profiles (profile data) 41 are provided, and by switching these, it is possible to obtain an output result corresponding to the data of the image to be printed.
In addition, it has a keyword / profile relation table 42 in which keywords and profile names are recorded in association with each other. When selecting optimum profile data from the color profile 41, the keyword recorded here is converted from data of an image to be printed. Extract. Printer driver 4
The details of the method of selecting the optimum profile data according to the above will be described later.

The printing device 5 receives the print data from the host computer 1 and the color profile selected by the printer driver 4, creates an image of each page based on the print data, and performs color adjustment based on the color profile. Print each page.

Here, the operation of the image forming system according to the embodiment of the present invention will be described.

At the time of printing, the user first inputs a print instruction from the application program 3 operating on the host computer 1. The application program 3 sends the print instruction to the printer driver 4 on the operating system 2. At this time, the data of the image to be printed is stored in the PDL (Page Descripti
on Language) and sent to the printer driver 4 after being converted into a computer language that can control the printer. The data converted to the format sent to the printer driver 4 is set as print intermediate data. Since the printer driver 4 processes the print intermediate data, no matter what file format the image data to be printed is stored in, the processing operation by the printer driver 4 is not directly related.

Note that the image data is described here as a combination of the image information included in the image and the name of the image (file name, document name, etc.). Further, the image here includes a document.

When the printer driver 4 receives the print instruction,
After performing keyword extraction and comparing the types of data to be drawn on the transmitted print intermediate data, the print intermediate data is sequentially converted into print data to be transmitted to the printing apparatus 5. The print data thus converted is sequentially sent to the printing device 5. The printer driver 4 selects an appropriate color profile by keyword extraction and comparison of the type of data to be drawn, and sends the selected color profile to the printing device 5 as soon as the selection is completed. Details of the selection of the optimum color profile will be described later. The printing device 5 creates an image of each page based on the sequentially transmitted print data, performs color adjustment based on the subsequently transmitted color profile, and prints each page.

FIG. 2 is a view showing an example of the keyword / profile relation table (keyword / profile record data) 42 according to the embodiment of the present invention. In the keyword / profile association table 42, information on the situation (whether it is in the document name or in the document), the keyword, and the score (weight) are included in the color profile 41. ) And recorded.

The profile name is color profile 4
For each color profile included in 1,
It is attached so as to represent an object for which an effective result can be obtained by color correction based on profile data specified by the profile name. For example, a business document is a color profile for color conversion to an image with high contrast and sharpness. A person is a color profile for color conversion to an image with good flesh coloration. The name is a color profile for performing color conversion to an image in which a warm color system is emphasized so that the name looks delicious.

For each profile name, an associated keyword and a score indicating the weight of the keyword depending on the situation (whether in the document name or in the document) are set. The setting of the keyword and the score is performed at the time of creating a program by a method such as analyzing image data and statistical data on character information included therein. Note that a function for changing the setting of the score by the user's input may be provided. Further, the scores and the like shown in FIG. 2 are merely examples, and are not limited to these values.

In FIG. 2, the appearance status is indicated by whether it is present in the document name or in the document, but if it is an expression that indicates whether it is included in the name of the image or in the image information The present invention is not limited to this, and may be represented by another notation. For example, there is a notation such as whether it is in a file name or in text data.

Next, a description will be given of a printer driver and an image forming system according to a first embodiment of the present invention, and a method of selecting an optimum color profile in a control method thereof. In the present embodiment, an optimal color profile is selected by extracting a keyword from the name of an image to be printed from the data of the image.

When the application program 3 sends a print instruction to the printer driver 4 on the operating system 2,
The printer driver 4 receives the converted print intermediate data together with the print instruction. A keyword is extracted from the image name (document name or the like) included in the print intermediate data by a keyword extraction method.

Various methods are known as the method for extracting the keywords here, but the most common method is to construct the keywords as a tree-structured dictionary and extract them by the longest match. This method is used in various cases such as keyword extraction in the kana-kanji conversion program,
Since this is a known method, details are omitted.
The method used for keyword extraction is not limited to this method, and another method may be used.

The printer driver 4 reads the set score by comparing the extracted keyword with the keyword / profile relation table 42 for each keyword, and calculates the product of the score and the extracted number of the keyword. Ask for. Here, the keyword / profile relation table 42 is used only where the appearance status is the document name. The printer driver 4 compares the value of the product thus obtained for each of the extracted keywords, and sends a color profile specified by the profile name associated with the keyword having the largest value to the printing device 5. Select as profile.

Next, a description will be given of a printer driver and an image forming system according to a second embodiment of the present invention, and a method of selecting an optimum color profile in a control method thereof. In the present embodiment, an optimal color profile is selected by extracting a keyword from data of an image to be printed (both a document name and character information included in image information).

When the application program 3 sends a print instruction to the printer driver 4 on the operating system 2,
The printer driver 4 receives the converted print intermediate data together with the print instruction. A keyword is extracted from both the image name (document name and the like) and the image information included in the print intermediate data by a keyword extraction method.
The keyword extraction method is the same as in the first embodiment, and a description thereof will be omitted.

The printer driver 4 reads the set points by comparing the extracted keywords with the keyword / profile relation table 42 for each keyword, and for each page, the points and the extracted keywords are extracted. Find the product with the number.

Here, the keyword / profile relation table 42 is set such that the same keyword has a different score depending on the appearance status. That is, for the same keyword, the keyword extracted from the document name has a higher score (weight) than the keyword extracted from the character information included in the image information.
This is because the number of extractions from the character information included in the image information is likely to be a very large number as a whole, and the document name more strongly represents the nature of the image to be printed. That is because

The printer driver 4 compares the value of the product obtained in this way with respect to each keyword extracted for each page, and determines a color profile designated by a profile name associated with the keyword having the largest value. Is selected for each page as a color profile to be sent to the printing apparatus 5.

Next, a description will be given of a printer driver and an image forming system according to a third embodiment of the present invention, and a method of selecting an optimum color profile in a control method thereof. In the present embodiment, when there is little or no character information included in the data of an image to be printed, an optimal color profile is selected by comparing the types of data to be drawn. That is, the optimum color profile is selected by identifying the data type of the image to be printed.

When the application program 3 sends a print instruction to the printer driver 4 on the operating system 2,
The printer driver 4 receives the converted print intermediate data together with the print instruction. The image information (data to be drawn) included in the print intermediate data is often different between a bitmap (such as a photograph) and a diagram (such as a business graph). The former is a bit block transfer (BitBlt).
ock Transfer)), and the latter is a line drawing (Vector Gra
phis). That is, a print instruction in the form of a bit block and a line drawing is sent to the printer driver 4.

The printer driver 4 calculates the number N1 of BitBlts for each page from the transmitted print intermediate data.
And the number N2 of Vector Graphics is obtained. Then, [N1 × factor] is compared with N2 for each page. If the former is large, the color profile for the photographic image is selected, and if the latter is large, the color profile for the business image is selected. Where factor
Is that drawing a bitmap requires only one BitBlt command, whereas drawing a figure requires only one Vector
Since the Graphics instruction is often composed of a plurality of instructions, this is a coefficient for absorbing the difference. Coefficient f
The value of the actor is determined at the time of creating a program, for example, by analyzing statistical data on the type of data to be drawn included in the data of the image for each type of image.

It should be noted that a color profile for a photographic image and a color profile for a business image selected according to the present embodiment may be set in advance in one color profile. A function for changing the setting may be provided.

In this embodiment, the selection of the optimum color profile is performed for each page.
This may be performed on the entire image to be printed.

Further, in the present embodiment, the factor fact
Although the value of or is set in advance when the program is created, it may be changed based on the result of keyword extraction according to the first or second embodiment.
That is, the third embodiment relates to a selection method performed when the character information included in the data of the image to be printed has little or no character information. However, the keyword extraction according to the first or second embodiment is performed in advance. Is performed, a function for obtaining a value of factor using the result of the keyword extraction may be set in advance by analyzing statistical data related to image data.

Further, in the embodiment of the present invention, the first, second, and third embodiments are separately described.
As described above, the third embodiment relates to a selection method performed when there is little or no character information included in data of an image to be printed. Therefore, keyword extraction according to the first or second embodiment is performed. According to the result, the selection method according to the third embodiment may be used. At this time, which of the selection methods according to the first and second embodiments is used may be set in advance, or may be switched by a user input. As the switching method set in advance, for example, the selection method according to the second embodiment is used first. If the selection cannot be performed well, the selection method according to the first embodiment is used. , And a selection method using

In the embodiment of the present invention, the color profile 41 and the keyword / profile relation table 42 are included in the printer driver 4. However, both or one of them is stored in another recording medium such as a recording disk. May be recorded.

In the embodiment of the present invention, the printing device 5
Is described as a printer or the like, but is not limited thereto as long as it is an image forming apparatus that can be controlled by a host computer. For example, a digital multifunction peripheral that can be connected to a network may be used.

The printer driver according to the embodiment of the present invention is not limited to a driver for controlling a printer as long as it is a program that operates on a host computer and controls the printing apparatus 5. That is, since the printing apparatus 5 may be various image forming apparatuses as described above, the printer driver according to the present invention may be a driver corresponding to the image forming apparatus used for image formation.

[0066]

As is apparent from the above description, according to the printer driver, the image forming system, and the control method thereof according to the present invention, the user intends to print without being conscious during color printing. An appropriate color profile according to the image data can be selected.

Further, according to the printer driver, the image forming system, and the control method of the present invention, the name of the image among the data of the image to be printed without any special awareness of the user during color printing. It is possible to select an appropriate color profile according to (file name, etc.). That is, regardless of the type of image information of the image to be printed, the user can select an appropriate color profile without special awareness of the user.

Further, according to the printer driver, the image forming system, and the control method of the present invention, the user can adjust the data of the image to be printed for each page without paying special attention to the user during color printing. An appropriate color profile can be selected.

Further, according to the printer driver, the image forming system, and the control method thereof according to the present invention, the user does not need to pay special attention to color printing, even if the image has little or no character information. An appropriate color profile can be selected according to the data of the image to be printed.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a basic configuration example of an image forming system according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a keyword / profile relation table 42 according to the embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 host computer 2 operating system 3 application program 4 printer driver 5 printing device 41 color profile (profile data) 42 keyword / profile relation table

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Claims (18)

[Claims] 1. A printer driver comprising a plurality of color profiles, wherein an optimum color profile is selected from the plurality of color profiles using data of an image to be printed. 2. Keyword / profile recording data in which a keyword associated with each of the plurality of color profiles is recorded together with a name of the color profile, and the selection is performed based on a name of the image among data of the image. 2. The printer driver according to claim 1, wherein a keyword included in the keyword / profile recording data is extracted, and a color profile associated with the keyword is selected as an optimum color profile. 3. Keyword / profile recording data in which a keyword related to each of the plurality of color profiles is recorded together with a name of the color profile, and the selection is performed based on character information included in data of the image. 2. The printer driver according to claim 1, wherein a keyword included in the profile recording data is extracted, and a color profile associated with the keyword is selected as an optimum color profile. 4. Identifying the type of data of the image, and selecting the optimum color profile using the result of the identification when the character information included in the image data is small or absent. The printer driver according to any one of claims 1 to 3, wherein 5. When extracting the keyword from character information included in data of the image, when the keyword is included in the name of the image in the data of the image, and when the keyword of the image is included in the data of the image. 4. The printer driver according to claim 3, wherein the selection is performed by assigning different weights to the image information when the keyword is included. 6. The method according to claim 1, wherein, in the identification, the image information of the image is divided into a line image and a bit block in the image data, and the types of the image data are identified by comparing each of them. Item 4. The printer driver according to Item 4. 7. An image forming system including a host computer and an image forming apparatus that operates under the control of the host computer, wherein the host computer has a printer driver having a plurality of color profiles, When an image is formed by the image forming apparatus, the image data is converted into print data, and an optimal color profile is selected from the plurality of color profiles using the image data. Transmitting the print data and the optimal color profile selected by the printer driver to the image forming apparatus, wherein the image forming apparatus transmits the optimal color profile based on the optimal color profile transmitted from the host computer. Color-correct print data Image forming system characterized by performing the formation. 8. The printer driver includes keyword / profile recording data in which a keyword associated with each of the plurality of color profiles is recorded together with a name of the color profile. The image forming system according to claim 7, wherein a keyword included in the keyword / profile recording data is extracted, and a color profile associated with the keyword is selected as an optimal color profile. 9. The printer driver includes keyword / profile recording data in which a keyword associated with each of the plurality of color profiles is recorded together with a name of the color profile. 8. The image forming system according to claim 7, wherein a keyword included in the keyword / profile recording data is extracted, and a color profile associated with the keyword is selected as an optimum color profile. 10. The printer driver identifies a type of data of the image. When forming the image, if the character information included in the image data is small or absent, a result of the identification is determined. The image forming system according to claim 7, wherein an optimal color profile is selected by using the selected color profile. 11. When extracting the keyword from character information included in data of the image, when the keyword is included in the name of the image in the data of the image, and when the keyword of the image is included in the data of the image. The image forming system according to claim 9, wherein the selection is performed by assigning different weights to a case where the keyword is included in the image information. 12. The method according to claim 11, wherein the identification is performed by dividing the image information of the image out of the image data into a line drawing and a bit block, and comparing each of them to identify the type of the image data. Item 11. The image forming system according to Item 10. 13. A host computer comprising: a plurality of color profiles; and a keyword / profile record data in which a keyword associated with each of the plurality of color profiles is recorded together with a name of the color profile; In the method for controlling an image forming system including an operating image forming apparatus, when the host computer forms an image with the image forming apparatus, the host computer extracts a keyword recorded in the keyword / profile recording data from data of the image. Extracting, converting the image data into print data, selecting an optimal color profile from the plurality of color profiles using the extracted keywords, and selecting the print data and the selected optimal color profile. And transmitting a print profile to the image forming apparatus, wherein the image forming apparatus forms an image by performing color correction on the print data based on the optimal color profile transmitted from the host computer. Of controlling an image forming system. 14. The host computer, when extracting a keyword recorded in the keyword / profile recording data from the image data, extracts the keyword from the name of the image in the image data. 14. The control method for an image forming system according to claim 13, wherein: 15. When extracting the keyword recorded in the keyword / profile record data from the image data, the host computer extracts the keyword from character information included in the image data. 14. The method for controlling an image forming system according to claim 13, wherein: 16. The host computer, when extracting a keyword recorded in the keyword / profile recording data from the image data, when the character information included in the image data is small or absent, 16. The data processing method according to claim 13, wherein the type of the image data is identified, and when an optimal color profile is selected from the plurality of color profiles, the optimal color profile is selected using a result of the identification. 13. The method for controlling an image forming system according to item 13. 17. The host computer, when extracting the keyword from character information included in the data of the image, when the keyword is included in the name of the image in the data of the image, 16. The method according to claim 15, wherein the selection is performed by assigning a different weight to a case where the image information of the image includes the keyword. 18. The image processing method according to claim 18, wherein, of the image data, the image information of the image is divided into a line image and a bit block, and the type of the image data is identified by comparing the two. Item 17. A method for controlling an image forming system according to Item 16.