Patent ID: 9129423
Filing Date: 2015-09-08
Classification: G06T,H04N

Abstract:
1. An image processing apparatus comprising: an image input unit configured to input color image data; a first color conversion unit configured to convert the input color image data into first image data of an L*a*b color space having independent brightness and chromaticity components; a background color detection unit configured to detect a background color component, L a background removing unit configured to convert, based on a white value conversion parameter derived based on a ratio of the background color corresponding to the background color component to a prescribed reference white color in the L*a*b color space, the first image data into second image data having the background color in white; a second color conversion unit configured to convert the second image data of the L*a*b color space into third image data of a prescribed color space; and an output unit configured to output the converted third image data of the prescribed color space.