A discrimination device and method that generates a control signal used for controlling a color image processing apparatus that processes color image data in a first color space and generates color image data in a second color space different from the first space. The color image data in the ...http://www.google.com/patents/US5765089?utm_source=gb-gplus-sharePatent US5765089 - Image processing apparatus and method for generating a control signal based on a discrimination of whether an input image includes a specific image 
