Patent ID: 6456404
Filing Date: 2002-09-24
Classification: H04N

Abstract:
An image processing apparatus comprising:input means for inputting input image information which represents an object image and includes a logical operation table; color conversion means for converting the input image information into color image data consisting of a black density component and a plurality of color density components; quantization process means for quantizing said color image data consisting of a black density component and a plurality of color density components; conversion means for converting the quantized color image data into linearly independent color image data, by converting the black density component into the plurality of color density components; logical operation process means for performing, on the basis of the logical operation table, a logical operation on a plurality of color component data which constitute the linearly independent color image data converted by said conversion means; and generating means for generating color image data consisting of a black density component and a plurality of color density components from the plurality of color component data on which the logical operation process is performed.