Patent ID: 7978385
Filing Date: 2011-07-12
Classification: H04N

Abstract:
1. A color processing method for evaluating a color converting process for converting color data of a first color space to color data of a second color space, the color processing method comprising: an input step of inputting a plurality of measured data in a third color space, each measured data obtained by carrying out colorimetry of patch images output onto a recording medium using a plurality of patch data comprising the color data of the second color space, which color data corresponds to each of color data of individual steps obtained by resolving the first color space into a plurality of steps; an extracting step of extracting a set of measured data, corresponding to a plurality of reference points which are vertices in the first color space, from the plurality of measured data; a generating step of generating, by using the extracted set of measured data, a plurality of target data linearly distributed in the third color space, the plurality of target data corresponding to the each of color data of individual steps; and a calculating step of calculating evaluation values from differences between the input plurality of measured data and the generated plurality of target data, wherein the plurality of patch data is obtained from the color data of the second color space converted from the color data of the individual steps by the color converting process.