| 摘要 |
This invention has as its object to provide an image processing apparatus and method which can efficiently compress an image while maintaining high image quality, and a storage medium for implementing the method. To accomplish this, an apparatus has a text area detector ( 101 ) for extracting a text area from multi-valued image data, and generating text area coordinate data ( 109 ) as position data of the text area, a binarization unit ( 102 ) for generating binary image data ( 108 ) by binarizing multi-valued image data of the text area, a color computation unit ( 103 ) for generating text color data ( 110 ) by computing a representative color of the text area, a text paint unit ( 104 ) for generating non-text multi-valued image data A by converting multi-valued image data of the text area using multi-valued image data of an area other than text, a reduction unit ( 105 ) for generating reduced non-text multi-valued image data by lowering the resolution of the non-text multi-valued image data, a JPEG compression unit ( 106 ) for compressing the non-text multi-valued image data by JPEG, and an MMR compression unit for compressing the binary image data of the text area by MMR.
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