IP Library Granted Patent US 8,115,979
Granted Patent B2
US 8,115,979 · App. 12/151,824 · Granted Feb 14, 2012

Ink minimizing profile making tool

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Quick Facts
Patent No.
US 8,115,979
App. No.
12/151,824
Granted
Feb 14, 2012
Kind
B2
Abstract

An International Color Consortium (ICC) profile making tool includes a regression module to establish a dependency between a profile connection space (PCS) and a device color space and an optimization module to generate a first output profile based on an ink minimization mode and a second output profile based on a high accuracy mode.

Claims (28)

1. A computer system comprising:

a memory to store a profile tool, including:

a regression module to establish a dependency between a set of points in a profile connection space (PCS) and a device color space; and

an optimization module to generate a first output profile for the set of points based on an ink minimization mode and a second output profile for the set of points based on a high accuracy mode, wherein the ink minimization mode establishes a limit as to how much a reproduced color in the device color space can deviate from a color associated with the set of points in the PCS; and

a processor to execute the profile tool.

2. The computer system of claim 1 wherein the ink minimization mode minimizes an amount of ink used when performing a print job via the first output profile.

3. The computer system of claim 2 wherein the ink minimization mode enables a profile tool user to establish a limit as to how much a reproduced color can deviate from a requested color in the PCS.

4. The computer system of claim 3 wherein the user provides an input to the profile tool specifying a level of print quality that is acceptable in the ink minimization mode.

5. The computer system of claim 2 wherein the high accuracy mode ensures that color error will be minimized between the requested and reproduced color regardless of the amount of ink consumed.

6. The computer system of claim 1 wherein the first output profile comprises a first set of color lookup tables (CLUTs) and the second output profile comprises a second set of CLUTs.

7. The computer system of claim 1 wherein the profile tool receives a measurement file as an input.

8. The computer system of claim 7 wherein the measurement file is generated by measuring a print chart using a spectrophotometer.

9. The computer system of claim 8 wherein the profile tool generates a sample set in the PCS with known responses in the device color space from the measurement file.

10. The computer system of claim 9 wherein the regression module retrieves the sample set to establish the dependency between the PCS and the device color space.

11. The computer system of claim 1 wherein the profile tool receives a color lookup table (CLUT) resolution is an input to determine a number of evenly distributed points that will be used to represent a grid that spans the PCS.

12. A computer-generated method comprising:

a processor performing a regression method to establish a dependency between a set of points in a profile connection space (PCS) and a device color space; and

the processor performing an optimization method to generate a first profile for the set of points based on an ink minimization mode and a second profile for the set of points based on a high accuracy mode wherein the ink minimization mode establishes a limit as to how much a reproduced color in the device color space can deviate from a color associated with the set of points in the PCS.

13. The computer-generated method of claim 12 further comprising receiving an input specifying a level of print quality that is acceptable in the ink minimization mode.

14. The computer-generated method of claim 12 further comprising receiving an input establishing a limit as to how much a reproduced color can deviate from a requested color in the PCS.

15. The computer-generated method of claim 12 wherein the first ICC profile comprises a first set of color lookup tables (CLUTs) and the second profile comprises a second set of CLUTs.

16. The computer-generated method of claim 12 further comprising receiving a measurement file.

17. The computer-generated method of claim 16 further comprising generating a sample set in the PCS with known responses in the device color space from the measurement file.

18. The computer-generated method of claim 17 wherein the regression module retrieves the sample set to establish the dependency between the PCS and the device color space.

19. The computer-generated of claim 12 further comprising receiving a color lookup table (CLUT) resolution to determine a number of evenly distributed points that will be used to represent a grid that spans the PCS.

20. An article of manufacture comprising a non-transitory computer-readable medium having associated data, wherein the data, when accessed, results in a machine performing operations comprising:

performing a regression method to establish a dependency between a set of points in a profile connection space (PCS) and a device color space; and

performing an optimization method to generate a first profile for the set of points based on an ink minimization mode and a second profile for the set of points based on a high accuracy mode wherein the ink minimization mode establishes a limit as to how much a reproduced color in the device color space can deviate from a color associated with the set of points in the PCS.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 12, 2015
From: RICOH PRODUCTION PRINT SOLUTIONS LLC
To: RICOH COMPANY, LTD.
Reel/Frame 036336/0564 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 9, 2008
From: SHESTAK, VLADIMIR V.; TEKLITS, LARRY D.; ERNST, LARRY M.
To: INFOPRINT SOLUTIONS COMPANY LLC
Reel/Frame 020985/0089 →