Patent ID: 6757426
Filing Date: 2004-06-29
Classification: G06K

Abstract:
An automatic method for processing a color form, the method comprising the step of:a) detecting color in a color form sample, comprising the steps of: (a1) scanning the color form sample and producing digital image records; (a2) converting the digital image records into a luminance image record and two chrominance image records in a luminance-chrominance color space; (a3) detecting background gray levels for the luminance image record from step (a2) and assigning it to a Background Value; (a4) applying a global threshold level input to the output of step (a2) to obtain a binary image; (a5) measuring color distribution with the output of steps (a4) and (a2); (a6) detecting colors and distributions in the color form sample using the output of step (a5); (a7) generating color tables with the output of step (a6); and (a8) merging a dropout color table with the output of step (a7); and b) conducting a color dropout process.