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

A cost effective color gamut mapping architecture is described. The conventional three-dimensional reduced resolution look-up table is considered and the concept of three-dimensional difference look-up table is introduced for real-time color gamut mapping. The required hardware can be greatly reduced by look-up table resolution adjustment and further reduced by the gamut mapping rule modification. The proposed hardware architecture is suitable for FPGA and ASIC implementation and can be adopted in real-time display quality enhancement purposes.