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US6154568A Image processing apparatus for processing a bi-level image and method therefor 失效
用于处理双电平图像的图像处理装置及其方法

Image processing apparatus for processing a bi-level image and method
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摘要:
A bi-level image is pre-processed by dividing the image into rectangular blocks, and rearranging the dots in each rectangular block into a pattern determined by the density of black dots in the block. The resulting rearranged image is suitable for further processing such as resolution conversion or compressive encoding.
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