Brief Description:
This image processing technology provides data compression for the color transformation tables which are embedded in printer firmware for optimal color printing.
Applications:
The concept is to be used in digital printing devices, such as color ink jet and color laser printers. Color look-up tables provide transformation between various color spaces, such as device independent color spaces (CIELAB) and device-dependent color spaces (CMYK), which can depend on print media and artistic preferences. These color look-up tables are embedded in printer hardware, typically on expensive flash memory.
Advantages:
The technique provides color look-up tables in a compressed form, with no compromise in quality. The compression ratio achieved is 3.45.
Technology status:
There has been one publication:
S. R. A. Balaji, G. Sharma, M. Q. Shaw, and R. Guay, “Hierarchical compression of color look up tables <http://www.ece.rochester.edu/~gsharma/papers/BalajiCLUTCompressCIC2008.pdf>,” in Proc. IS&T/SID Fifteenth Color Imaging Conference: Color Science and Engineering: Systems, Technologies, Applications, Albuquerque, NM, 5-9 Nov. 2007, pp. 261-266.