A METHOD AND APPARATUS PROCESSING PIXEL SIGNALS FOR DRIVING A DISPLAY AND A DISPLAY USING THE SAME

摘要

A method of processing image data comprises receiving input signals for specifying red, green and blue colours of the pixels of a display, performing a per-pixel low pass filtering (40) of the input signals, the low pass filtering function being dependent on the chrominance variation between adjacent pixels, and providing the filtered output signals for use in driving the pixels of a display. This method essentially measures the chrominance variation of the incoming signal, in the form of the colour change frequency, and depending on this variation, adaptively low-pass filters the incoming signal. This can be in such a way that the chrominance resolution of the outgoing signal is below the maximum chrominance resolution of the intended display, without errors in the average colour of a small group of pixels.