Patent ID: 6172681
Filing Date: 2001-01-09
Classification: H04N

Abstract:
A color converting method for converting color data from a first colorimetric system into a second colorimetric system, the method comprising the steps of:inputting a desired color adjustment amount;changing, dependently on the inputted color adjustment amount, a characteristic value indicative of relationship between first parameters defined in a first colorimetric system and second parameters defined in a second colorimetric system stored in a predetermined table, without changing the first parameters or the second parameters in the predetermined table, the characteristic value indicating a positional characteristic how the first parameters are arranged in a coordinate space defined for the first colorimetric system; andconverting color data, defined in the first colorimetric system, into color data in the second colorimetric system, through an interpolation process, in accordance with the unchanged first parameters that are arranged in the coordinate space according to the changed characteristic value and in accordance with the unchanged second parameters that are stored in the predetermined table in correspondence with the unchanged first parameters, thereby adjusting the color state of the color data according to the inputted color adjustment amount.