Adaptive contrast and brightness enhancement with color preservation

摘要: A method and apparatus for selectively enhancing contrast depending on the level of incoming video signals while preserving colors are provided. An brightness a signal displayed display device includes: first luminance transformation circuit that receives chrominance signals, reduces in response to control signal, outputs whose has been reduced; an image converting output from converts received into RGB signals; second circuit, concurrently increases respective levels have increased. It is desirable color tube (“CDT”), thin film transistor liquid crystal (“TFT-LCD”), or plasma panel (“PDP”).