Color contrast correction system for video images obtained from color film

Claim 1

In a system for reproducing a color image from a color film, of the type including a light source and a photoelectric pickup providing independent RGB signals representative of said color image for reproduction on a television screen by scanning the color film, the improvement comprising means for color contrast correction of the reproduced image to compensate for overexposure and underexposure of said color film, said means including: a gamma correction circuit preset with a plurality of gamma values for each of said RGB signals; a characteristic value detection circuit for providing an average value, a maximum value, and a minimum value of each of said RGB signals during the scanning of the color film; display means for displaying the degree of exposure of the color film on the basis of the detected characteristic values; and means for selecting one of the plurality of preset gamma values of said gamma correction circuit for each of the RGB signals on the basis of the detected characteristic values such that the selected gamma values enable the color image to be reproduced on the television screen as if the color film has been normally exposed.