Abstract: The present invention provides an image processing device that avoids occurrence of unintended color conversion during the logical operation processing, and produces high-resolution images. In the image processing device of the present invention, after an input color conversion unit converts the RGB color space into the CMYK color space, a first color conversion unit executes color conversion of an area subjected to the logical operation processing into the CMY color space, and a logical operation unit executes the logical operation processing. Thereafter, a second color conversion unit executes color conversion of a logical operation result into the CMYK color space. On the other hand, a pixel value comparison unit compares the color values of the CMY color space before and after the logical operation by the logical operation unit; and if coincident, an output image selection unit selects the color values converted by the input color conversion unit as they are.

Abstract: To provide an image processing apparatus and method that enable high speed and high quality image drawing process. When a drawing instruction including drawing logical arithmetic process instruction is input to a drawing instruction converting unit, the drawing instruction converting mans converts the input drawing instruction to a drawing object and a drawing logical arithmetic process instruction and then stores these to a drawing object storing unit. A drawing logical arithmetic process instruction determining unit determines whether the drawing logical arithmetic process instruction has content to be drawn without logical arithmetic process or not.