Method and apparatus for color print management
In a color printing environment, functions for printing color management are dissociated. An abstraction layer is also provided to facilitate setting and evaluation of all factors relating to color print and prediction.
1. In a color management workflow, a method for separate and independent operator adjustment of operations comprising:
receiving a source file;
using said source file to initiate a following iterative process:
setting gamut adaptation between a source space and a printing space;
defining a color separation strategy;
performing linearization for each ink to make response similar to a fixed standard;
adjusting for ink limitations, including maximum ink volume per primary color channel of a plurality of primary color channels and per maximum number of combinations of the primary color channels; and
effecting image and/or color adaptation by
printing a sample output file;
determining whether a change is desired and if a change is desired, changing a setting and return to said setting gamut adaptation step, otherwise
launching production based on the determined gamut adaptation, the defined color separation strategy, the performed linearization, and the adjustment for ink limitations.
2. A method of processing color matching and editing, comprising:
receiving a source file for processing pursuant to printing;
creating a reversible, three-dimensional virtual color space that includes:
a virtual workspace between a virtual color space and a printing space having a positive integer data size, the positive integer representing a number of primary colors in the printing space, and wherein a percentage of ink of each color is equivalent to a single virtual color having separation values necessary to obtain an expected color rendering before separation into separate layers for printing, wherein changing the percentage effects display of a resulting color rendering;
using at least ink data from said source file to initiate a following iterative process:
processing ink using in said reversible, three-dimensional virtual color space;
printing a sample processed source file based on the processed ink;
determining whether a change is desired to the sample processed source file and if a change is desired, changing a percentage of ink and return to said processing ink step, otherwise
launching production based on the processed ink.
3. A method for multicolor separation of a print file containing source data, comprising:
receiving a print file containing source data;
creating a virtual color space of constant size and constant form;
using said source data to initiate a following iterative process:
defining a relationship between a separation strategy and virtual color values including defining a unique relationship between a virtual channel vLCh (virtual CHL) and said data;
obtaining actual measured colorimetric data;
defining a relationship between said actual measured colorimetric data and imaginary colorimetric data or virtual type vLCh and codifying said relationship in a look-up table (LUT) with interpolation of data between anchor points of the LUT;
performing multicolor separation of the print file using said LUT with interpolation of data between anchor points of the LUT;
printing a sample output file; and
determining whether a change is desired and if a change is desired, changing a setting and return to said defining a relationship step, otherwise
launching production based on the codified LUT with interpolation of data between anchor points of the LUT.