Color management system and method for color printing system

• US 20030053134A1
• Filed: 09/14/2001
• Published: 03/20/2003
• Est. Priority Date: 09/14/2001
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Haro, Antonio Vazquez
• Granted Patent: US 6,762,858 B2
• Time in Patent Office: Days
• US Class Current: 358/2.1
• CPC Class Codes: G06K 15/00 Arrangements for producing a permanent visual presentation of the output data , e.g. computer output printersprinting or plotting combined with another operation, e.g. with conveying, G06K17/00
• CPC Class Codes: G06K 2215/0094 Colour printing
• CPC Class Codes: H04N 1/603 controlled by characteristics of the picture signal generator or the picture reproducer
• CPC Class Codes: H04N 1/6033 using test pattern analysis H04N1/6055 takes precedence
• CPC Class Codes: H04N 1/6036 involving periodic tests or tests during use of the machine

Abstract

A color printing system includes a color printer adapted to receive an image file and an original color profile associated with the image file and print at least one color output based on the image file and the original color profile. The color printing system also includes a color measurement module adapted to generate a color measurement of the color output of the color printer and a color management module adapted to compare the color measurement of the color output of the color printer with the original color profile associated with the image file. As such, the color management module determines if a variation in color exists between the color measurement of the color output and the original color profile. Thus, the color printing system also includes a color profile manager adapted to modify the original color profile and create a modified color profile if the color management module determines that the variation in color exists. Accordingly, the modified color profile compensates for the variation in color.

Claims

1. A color printing system, comprising:

a color printer adapted to receive an image file and an original color profile associated with the image file and print at least one color output based on the image file and the original color profile;

a color measurement module adapted to generate a color measurement of the at least one color output of the color printer;

a color management module adapted to compare the color measurement of the at least one color output of the color printer with the original color profile associated with the image file and determine if a variation in color exists between the color measurement of the at least one color output and the original color profile; and

a color profile manager adapted to modify the original color profile and create a modified color profile if the color management module determines that the variation in color exists, wherein the modified color profile compensates for the variation in color.

2. The color printing system of claim 1, wherein the original color profile includes an International Color Consortium (ICC) color profile.

3. The color printing system of claim 1, wherein the color profile manager is adapted to associate the modified color profile with the image file, wherein the color printer is adapted to print a modified color output based on the image file and the modified color profile, and wherein the color management module is adapted to compare a color measurement of the modified color output with the original color profile and determine if a variation in color exists between the color measurement of the modified color output and the original color profile.

4. The color printing system of claim 1, wherein the at least one color output of the color printer includes a first color output and a second color output printed after the first color output, and wherein the color management module is adapted to compare a color measurement of the second color output with a color measurement of the first color output to determine if a variation in color exists between the second color output and the first color output.

5. The color printing system of claim 1, wherein the at least one color output includes a plurality of color outputs, and wherein the color profile manager is adapted to develop a dynamic color profile based on a variation in color between a color measurement of each of the plurality of color outputs and the original color profile.

6. The color printing system of claim 5, wherein the color profile manager is adapted to record a respective color profile of each of the plurality of color outputs for the dynamic color profile and register the dynamic color profile for subsequent printing.

7. The color printing system of claim 5, wherein the dynamic color profile includes a plurality of color profiles.

8. The color printing system of claim 5, wherein the color profile manager is adapted to associate the dynamic color profile with the image file, and wherein the color printer is adapted to print a second plurality of color outputs based on the image file and the dynamic color profile.

9. The color printing system of claim 5, wherein the dynamic color profile compensates for at least one of a variation of marking material for the color printer, a temperature of the color printer, and a print medium being printed on by the color printer.

10. The color printing system of claim 1, wherein the at least one color output of the color printer includes an image and a color test pattern, and wherein the color measurement module is adapted to generate the color measurement of the at least one color output from the color test pattern.

11. The color printing system of claim 10, wherein the image is printed within an image field and the color test pattern is printed outside the image field.

12. The color printing system of claim 1, wherein the color measurement module includes one of a colorimeter and a spectrophotometer.

13. A method of managing color output of a color printer adapted to print the color output based on an image file for the color output and an original color profile associated with the image file, the method comprising the steps of:

generating a color measurement of the color output of the color printer;

determining if a variation in color exists between the color measurement of the color output of the color printer and the original color profile associated with the image file, including comparing the color measurement of the color output with the original color profile; and

modifying the original color profile associated with the image file to create a modified color profile if the variation in color exists between the color measurement of the color output and the original color profile associated with the image file.

14. The method of claim 13, wherein the original color profile includes an International Color Consortium (ICC) color profile.

15. The method of claim 13, further comprising the step of:

associating the modified color profile with the image file,

wherein the color printer is adapted to print a modified color output based on the image file and the modified color profile, and wherein the step of determining if a variation in color exists includes comparing a color measurement of the modified color output with the original color profile.

16. The method of claim 13, wherein the color output of the color printer includes a first color output and a second color output printed after the first color output, and wherein the step of determining if a variation in color exists includes comparing a color measurement of the second color output with a color measurement of the first color output.

17. The method of claim 13, wherein the color output of the color printer includes a plurality of color outputs, and further comprising the step of:

defining a dynamic color profile for the color printer based on a variation in color between a color measurement of each of the plurality of color outputs and the original color profile.

18. The method of claim 17, wherein the step of defining the dynamic color profile includes recording a respective color profile of each of the plurality of color outputs and registering the dynamic color profile for subsequent printing.

19. The method of claim 17, wherein the dynamic color profile includes a plurality of color profiles.

20. The method of claim 17, further comprising the step of:

associating the dynamic color profile with the image file.

21. The method of claim 17, wherein the step of defining the dynamic color profile includes compensating for at least one of a variation of marking material for the color printer, a temperature of the color printer, and a print medium being printed on by the color printer.

22. The method of claim 13, wherein the color output of the color printer includes an image and a color test pattern, and wherein the step of generating the color measurement of the color output includes reading the color test pattern of the color output.

23. A system for producing a book on-demand, the system comprising:

a processing system adapted to receive and process a book request for the book, the processing system adapted to retrieve a data file including contents of the book and produce a book body preparation command and a book cover preparation command from the data file;

a book block preparation system adapted to prepare a book block of the book in response to the book body preparation command;

a book cover preparation system adapted to prepare a book cover of the book in response to the book cover preparation command; and

a book finishing system adapted to assemble the book block and the book cover to form the book,

wherein the book cover preparation command includes an image file for the book cover and a color profile associated with the image file, and

wherein the book cover preparation system includes a color printer adapted to print the book cover based on the image file and the color profile, and a color management system adapted to compare a color measurement of the book cover with the color profile and modify the color profile to create a modified color profile if a variation in color exists between the color measurement and the color profile, wherein the modified color profile compensates for the variation in color.

24. The system of claim 23, wherein the color profile includes an International Color Consortium (ICC) color profile.

25. The system of claim 23, wherein the color management system of the book cover preparation system is adapted to associate the modified color profile with the image file for the book cover, wherein the color printer of the book cover preparation system is adapted to print a modified book cover based on the image file and the modified color profile, and wherein the color management system of the book cover preparation system is adapted to compare a color measurement of the modified book cover with the first named color profile.

26. The system of claim 23, wherein the color management system of the book cover preparation system is adapted to develop a dynamic color profile for the color printer of the book cover preparation system based on a variation in color between a color measurement of a plurality of book covers and the first named color profile.

27. A method of producing a book on-demand, the method comprising the steps of:

receiving and processing a book request for the book including retrieving a data file which includes contents of the book and producing a book body preparation command and a book cover preparation command from the data file;

preparing a book block of the book in response to the book body preparation command;

preparing a book cover of the book in response to the book cover preparation command; and

assembling the book block and the book cover to form the book,

wherein producing the book cover preparation command includes specifying an image file for the book cover and associating a color profile with the image file, and

wherein the step of preparing the book cover includes printing the book cover based on the image file and the color profile and includes comparing a color measurement of the book cover with the color profile associated with the image file for the book cover and modifying the color profile to create a modified color profile if a variation in color exists between the color measurement and the color profile, wherein the modified color profile compensates for the variation in color.

28. The method of claim 27, wherein the color profile includes an International Color Consortium (ICC) color profile.

29. The method of claim 27, wherein the step of preparing the book cover further includes associating the modified color profile with the image file for the book cover, printing a modified book cover based on the image file and the modified color profile, and comparing a color measurement of the modified book cover with the first named color profile.

30. The method of claim 27, wherein the step of preparing the book cover further includes developing a dynamic color profile based on a variation of color between a color measurement of a plurality of sequential book covers and the first named color profile.