| 摘要 |
The present invention provides display control unit and method for binarizing data of an image to binary data by an error spared method while taking error data generated in binarizing previous images into consideration, and spreads error data generated in binarizing the current image to subsequent images to preserve a density of the input data and prevent moire and lumbrical noise, and provides a display control unit and method which spreads a binarizing error generated in binarizing an image to images to be subsequently binarized to preserve a density so that a high quality image having a high tonality and a high resolution is produced.
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