SIGNAL PROCESSING METHOD AND SIGNAL PROCESSOR

摘要

PROBLEM TO BE SOLVED: To prevent an illegal color from being formed by distortion due to an aliasing error by providing a color legalizing device for connecting an adjustment factor turned into software with an input signal sample and forming a legalized color signal sample or the like. SOLUTION: A color legalizing processor 30 converts an illegal color pixel in a video image to a legal color value by applying the adjustment factor turned into software according to a legalizing method indicated and selected by control signals received from a connection conductor 18' and supplies it to a first input channel. The legalized color signal sample is supplied from an output channel 37 to a color format processor 38, re-converted to the 4:2:2 standard there and supplied to a signal copying device 40. The signal copying device 40 copies the legalized color signal sample of a 4:2:2 form and supplies it to first and second output 12 and 14.