Fitzpatrick, Cella, Harper & Scinto
Color image processing apparatus for selectively altering image colors
 A color image processing apparatus such as a color copying machine has a color appointing device for enabling an operator to appoint any desired color involved in an original image, a color range changing device for manually or automatically changing the size of range of the colors which can be regarded as being the same as the predetermined color, a target color appointing device for appointing a color to which the predetermined color is to be converted, and a color image forming device such as a laser beam printer for forming a color image with the predetermined color and colors in the color range converted into the target color. 
Canon Kabushiki Kaisha
H G H H H
H04N G06F H04N H04N H04N
inventional inventional inventional inventional inventional
Toshihiro Koichi Toshio Yasumichi Tetsuya Yoshinori
Kadowaki Katoh Honma Suzuki Ohnishi Ikeda