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MUTUAL OPTIMIZATION METHOD FOR CLASS MATRIX AND DIFFUSION WEIGHTING USED IN HALFTONE IMAGE PROCESSING TECHNIQUE AND MUTUAL OPTIMIZATION SYSTEM THEREOF
MUTUAL OPTIMIZATION METHOD FOR CLASS MATRIX AND DIFFUSION WEIGHTING USED IN HALFTONE IMAGE PROCESSING TECHNIQUE AND MUTUAL OPTIMIZATION SYSTEM THEREOF
A mutual optimization method for class matrix and diffusion weighting used in a halftone image processing technique and a mutual optimization system thereof are provided. In the method, a mutual optimization of a plurality of diffusion weightings and a class matrix used in a dot diffusion process is performed based on a concept of simulated annealing in order to avoid converging to local solution, so as to ensure an image quality of a halftone image generated by the dot diffusion process. Besides, since the mutual optimization method is for a hexagonal class matrix, a block effect appearing in the halftone image can be significantly reduced.
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