Patent ID: 7133565

Claim:
An image processing apparatus comprising: extraction means for extracting a text area from multi-valued image data, and generating position data of the text area; color computation means for generating representative color data of a text portion in the text area; generation means for generating text image data expressed by the representative color in the text area; conversion means for generating non-text multi-valued image data by converting multi-valued image data of the text portion using multi-valued image data of a portion other than the text portion; first compression means for compressing the non-text multi-valued image data; and second compression means for compressing the text image data wherein said color computation means includes: color palette generation means for generating at least one color palette as the representative color data by executing a color reduction process of a text image in the text area, and said generation means includes: color-reduced image generation means for generating color-reduced image data corresponding to the color palette.