A method of modifying image data in which image colors are to be modified, including a first step of initializing a color vector function, in which color vector is a function of luminance, and then the following repeated steps. A user defines a luminance range (616, 617) and a color vector (620) for...http://www.google.de/patents/US6944335?utm_source=gb-gplus-sharePatent US6944335 - Image data processing with color modification