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METHOD AND SYSTEM FOR INVERSE HALFTONING UTILIZING INVERSE PROJECTION OF PREDICTED ERRORS
METHOD AND SYSTEM FOR INVERSE HALFTONING UTILIZING INVERSE PROJECTION OF PREDICTED ERRORS
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机译：利用预测误差的逆投影进行逆半形变的方法和系统
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摘要
A method and system generates a reconstructed gray scale image of pixels from a binary image of pixels by reverse propagating an error, in a diffused manner, to the pixels of the binary image to create pixels representing a reconstructed gray scale image. The reverse propagation of the error determines if a current pixel has a first predetermined value; sets an error value to a first error value if the current pixel has the first predetermined value; sets the error value to a second error value if the current pixel does not have the first predetermined value; and propagates a diffused error value to a pixel neighboring the current pixel to create an error diffused pixel, the diffused error value being a product of the set error value and a weighting coefficient associated with the pixel neighboring the current pixel. A Gaussian filter may be utilized to filter the pixels representing a gray scale image to create a filtered reconstructed gray scale image of pixels.
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