Profile Selection Mechanism

• US 20100238461A1
• Filed: 03/17/2009
• Published: 09/23/2010
• Est. Priority Date: 03/17/2009
• Status: Abandoned Application

• Current Assignee: Infoprint Solutions Company LLC (Ricoh Company Limited)
• Original Assignee: Infoprint Solutions Company LLC (Ricoh Company Limited)
• Inventors: Walp, Jason Charles Kenneth, Chauvin, James Anthony
• Application Number:
  US12/405,769
• Publication Number:
  US 20100238461A1
• Time in Patent Office: Days
• US Class Current: 358/1.900
• CPC Class Codes: H04N 1/603 controlled by characteristics of the picture signal generator or the picture reproducer

Abstract

A printing system includes a print system to print data received at the printing system, a color image recording device to measure one or more control patches from the data printed at the print system and a control unit to compare measurement data from the control patches to data from available International Color Consortium (ICC) profiles to select an appropriate ICC profile corresponding the control patches.

Claims

1. A printing system comprising:

a print system to print data received at the printing system;

a color image recording device to measure one or more control patches from the data printed at the print system; and

a control unit to compare measurement data from the control patches to data from available International Color Consortium (ICC) profiles to select an appropriate ICC profile corresponding the control patches.

2. The printing system of claim 1 wherein the control unit converts the measurement data from a device space to a profile connection space (PCS) prior to comparing the measurement data.

3. The printing system of claim 2 wherein the control unit pushes device space values from the print data used to generate the test patch through one or more color lookup tables (CLUTs) to generate PCS values for each available ICC profile.

4. The printing system of claim 3 wherein the control unit compares the generated PCS values to PCS values corresponding to the measurement data.

5. The printing system of claim 4 wherein the control unit selects an ICC profile corresponding to the generated PCS values that are closest to the PCS values corresponding to the measurement data.

6. The printing system of claim 5 further comprising a graphical user interface (GUI) to prompt an operator to facilitate generation of a new ICC profile if none of the generated PCS values are within a predetermined range of the measured PCS values.

7. The printing system of claim 3 wherein the device space comprises a cyan, magenta, yellow, and black (CMYK) space and the PCS space comprises a L*a*b* space.

8. The printing system of claim 1 wherein the color image recording device is a camera that captures images of the control patches.

9. The printing system of claim 1 wherein the color image recording device is a scanner.

10. The printing system of claim 1 wherein the color image recording device is a photo spectrophotometer.

11. A method comprising:

color image recording device measuring one or more control patches from print data;

a control unit comparing measurement data from the control patches to data from available International Color Consortium (ICC) profiles; and

the control unit selecting an ICC profile having data values closest to values of the measurement data.

12. The method of claim 11 further comprising printing a print job using the selected ICC profile.

13. The method of claim 11 further comprising converting the measurement data from a device space to a profile connection space (PCS) prior to comparing the measurement data.

14. The method of claim 13 further comprising pushing device space values from the print data used to generate the test patch through one or more color lookup tables (CLUTs) to generate PCS values for each available ICC profile;

15. The method of claim 14 further comprising:

comparing the generated PCS values to PCS values corresponding to the measurement data; and

selecting an ICC profile corresponding to the generated PCS values that are closest to the PCS values corresponding to the measurement data.

16. The method of claim 15 further comprising generating a new ICC profile if none of the generated PCS values are within a predetermined range of the PCS values corresponding to the measurement data.

17. An article of manufacture comprising a machine-readable medium including data that, when accessed by a machine, cause the machine to perform operations comprising:

measuring one or more control patches from print data;

comparing measurement data from the control patches to data from available International Color Consortium (ICC) profiles; and

selecting an ICC profile having data values closest to values of the measurement data.

18. The article of manufacture of claim 17, wherein the machine-accessible medium includes data that causes the machine to perform further operations comprising converting the measurement data from a device space to a profile connection space (PCS) prior to comparing the measurement data.

19. The article of manufacture of claim 18, wherein the machine-accessible medium includes data that causes the machine to perform further operations comprising pushing device space values from the print data used to generate the test patch through one or more color lookup tables (CLUTs) to generate PCS values for each available ICC profile;

20. The article of manufacture of claim 19, wherein the machine-accessible medium includes data that causes the machine to perform further operations comprising:

comparing the generated PCS values to PCS values corresponding to the measurement data; and

selecting an ICC profile corresponding to the generated PCS values that are closest to the PCS values corresponding to the measurement data.