System and method for regularizing an ink model for a color device
AssigneeAgfa Graphics NV
InventorsMarc MAHY, Koen VANDE VELDE, Dmitry TUNITSKY
Life of this patent
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Abstract
A method including the steps of selecting an n-ink model for a color device, for transferring a set of colorant values in colorant space to a set of color values in color space; selecting a printer characteristic of the n-ink model, wherein the printer characteristic indicates the regularity of the n-ink model; evaluating, for the n-ink model, a set of one or more values and/or ranges for the printer characteristic, thus determining the regularity of the n-ink model; and modifying the n-ink model such that the modified n-ink model is regular, if, based on the evaluation, the n-ink model was not regular.
Claims8
1-7. (canceled)
A method for generating a color profile including a forward look-up table and an inverse look-up table for a color device, the method comprising the steps of:
- (a) creating an n-ink model out of data of a measurement file created for the color device or out of data of a forward look-up table of another color profile from the color device that is configured to transfer a set of colorant values in colorant space to a set of color values in color space;
- (b) creating an inverse n-ink model from the n-ink model or from the inverse look-up table of the color profile, the inverse n-ink model defining a color separation table;
- (c) converting the n-ink model in a forward look-up table;
- (d) converting the inverse n-ink model in an inverse look-up table;
- wherein, after creating the n-ink model, further comprising the steps of:
- (e) selecting a color profile characteristic;
- (f) determining if the n-ink model is not regular based on the color profile characteristic with one or more values and/or value ranges;
- (g) optimizing n-ink model by modifying the n-ink model if the n-ink model is not regular;
- and
- (h) optionally repeating steps (e) through (g) until the n-ink model is regular.
A non-transitory computer readable medium including software instructions for performing, when the software instructions are executed on a processor, a method comprising the steps of:
- generating a color profile including a forward look-up table and an inverse look-up table for a color device;
- creating an n-ink model out of data of a measurement file created for the color device or out of data of a forward look-up table of another color profile from the color device that is configured to transfer a set of colorant values in colorant space to a set of color values in color space;
- creating an inverse n-ink model from the n-ink model or from the inverse look-up table of the color profile, the inverse n-ink model defining a color separation table;
- converting the n-ink model in a forward look-up table;
- converting the inverse n-ink model in an inverse look-up table;
- selecting a color profile characteristic;
- determining if the n-ink model is not regular based on the color profile characteristic with one or more values and/or value ranges;
- and
- optimizing n-ink model by modifying the n-ink model if the n-ink model is not regular.
Dependencies are inferred from the claim text.