Abstract:
Matrixing apparatus for performing masking operations in a color television system wherein the relative amplitudes of color difference signals derived from component color signals are compared to obtain control voltages, and wherein the control voltages so obtained are selectively added to or subtracted from individual component color signals to effectively change the hue and saturation of the original color information.
Abstract:
IN A TELEVISION CAMERA APPARATUS IS PROVIDED FOR ADDING GAMMA CORRECTION AND SHADING MODULATION CORRECTION AND VARYING THE PEDESTAL HEIGHT OF VIDEO SIGNALS. ONE CIRCUIT COMBINES THE FUNCTIONS OF GAMMA CORRECTION AND SHADING MODULATION CORRECTION. ANOTHER CIRCUIT COMBINES THE FUNCTIONS OF GAMMA CORRECTION AND PEDESTAL OR BLACK LEVEL CONTROL WHILE MAINTAINING THE WHITE LEVEL OF THE SIGNALS CONSTANT.