IMAGE PROCESSING APPARATUS, IMAGE FORMING APPARATUS, IMAGE PROCESSING METHOD, IMAGE FORMING METHOD, AND NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM

摘要

According to an aspect of the invention, an image processing apparatus includes a graphic registration unit, a registered graphic extraction unit, a color reduction unit and an image formation controller. A specific graphic is registered in the graphic registration unit. The registered graphic extraction unit extracts, from an image to be processed, the specific graphic registered in the graphic registration unit. The color reduction unit reduces the number of colors used for a portion of the image to be processed other than the specific graphic. The image formation controller controls an image forming apparatus to form the specific graphic and the portion of the image to be processed in which the number of the colors is reduced, according to a performance of the image forming apparatus.