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A cost effective color gamut mapping architecture for digital TV color reproduction enhancement

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1 Author(s)
Dongil Han ; Dept. of Comput. Eng., Sejong Univ., Seoul, South Korea

A cost effective three-dimensional color gamut mapping architecture is described. The conventional three-dimensional reduced resolution look-up table is considered and the concept of three-dimensional reduced resolution difference look-up table is introduced for cost effective and real-time color gamut mapping. The overall architecture uses one-dimensional memory decomposition of three-dimensional gamut mapping look-up table and three-dimensional interpolation and simple adding operation for generating the final gamut mapped colors. The required computational cost is greatly reduced by look-up table resolution adjustment and further reduced by the gamut mapping rule modification. The proposed architecture greatly reduces the required memory size and hardware complexity compared to the conventional methods and it is suitable for real-time applications. The proposed hardware architecture is suitable for FPGA and ASIC implementation and could be applied to the real-time display quality enhancement purposes.

Published in:

IEEE Transactions on Consumer Electronics  (Volume:51 ,  Issue: 1 )