Patent ID: 7411707

Claim:
An image processing apparatus, comprising: a converter, arranged to color-convert input image data using a three-dimensional table selected from a plurality of three-dimensional tables and an interpolation process; a first calculator, arranged to obtain error-corrected data by adding error data to the color-converted image data; an output section, arranged to select a dot pattern from a combination of dot patterns selected from a plurality of combinations of dot patterns based on the error-corrected data, and output the selected dot pattern as an output dot pattern; an obtaining section, arranged to obtain data, which indicates an output color corresponding to the output dot pattern, by referring to an output density table; and a second calculator, arranged to obtain the error data by calculating a difference between the data which indicates the output color, and the color-converted image data, wherein the plurality of three-dimensional tables include three-dimensional tables in correspondence with the output color.