Serial digital video processing with concurrent adjustment in RGB and luminance/color difference

摘要: A digital converter controllably modifies input video data representing pixel luminance and color information, in two space formats. Two converters are coupled cascade. Serial is converted to parallel demultiplexed. first converts 4:2:2 sampled YCbCr difference RGB red/green/blue format. second changes the back before remultiplexing at output. Under operator control from front panel inputs, a controller varies conversion coefficients input-side converter, including by trigonometric functions applied provide controllable hue phase shifting, transfer function adjusting lookup tables, applies maximum/minimum clipping levels. Interpolation doubles sample rate of CbCr for co-siting each Y with processing samples 4:4:4. Two's complement computations, Y, employ full dynamic quantization range converters. An auxiliary operates on divided detecting overflow. bypass delay route provided non-video data, error detection handling signals passed through as well compared generated changed data.