NTS Co., Ltd. / Separate luminance and color signal separator

摘要

The present invention is to provide an NTSC / PAL combined luminance and color signal separating apparatus that adaptively responds to correlation by simultaneously performing vertical filtering and horizontal filtering and can be simultaneously applied to an NTSC / PAL system.;In order to achieve the above object, the present invention provides a color image processing system using both NTSC and PAL composite image signals, and a luminance and color signal separator for combining NTSC / PAL signals, Horizontal filtering means for detecting the luminance correlation between pixels when the vertical luminance correlation is not detected in the vertical filtering means and horizontally filtering the signals and outputting the signals output from the vertical filtering means to the vertical filtering means; A color signal separating means for selectively outputting in accordance with an NTSC / PAL control signal and separating into a color signal, a color signal outputting means for subtracting a color signal output from the color signal separating means to the composite video signal selectively output according to an NTSC / PAL control signal, And a luminance signal separating means for separating the luminance signal. Therefore, Y / C separation is possible not only for NTSC / PAL but also adaptively comb filtering to enable edge correction of color signals and luminance signals.