Patent ID: 7702146
Filing Date: 2010-04-20
Classification: G06T,H04N

Abstract:
1. A method of transforming device-dependent color values in a device-dependent color space of a color input device to device-independent color values inside a human visual gamut in a device-independent color space, comprising the steps of: providing a mathematical model for converting device-dependent color values in a device-dependent color space of the color input device to device-independent color values in the device-independent color space; converting an input device-dependent color value in the device-dependent color space generated by the color input device into a device-independent color value in the device-independent color space using the mathematical model; determining, using a processor, whether or not the device-independent color value has a luminance component less than zero; when it is determined that the luminance component is less than zero, performing the following steps: when it is determined that the luminance component is not less than zero, performing the following steps: