| 摘要 |
<p>An image processing device (106) converting a binary image into multi-valued output image includes an image-area-separation processing unit (103) detecting shadow areas in the binary image, wherein the shadow areas are graphic or photographic image areas having a number of lines greater than a predetermined number, an outline-correction processing unit (104) correcting jagged edges in the binary image to generate a corrected image, an multi-value processing unit (105) converting the binary image into a multi-valued image through a filtering process, and a selection unit (107) selecting the multi-valued image for the shadow areas and the corrected image for areas other than the shadow areas so as to generate the multi-valued output image. <IMAGE></p> |
