发明名称 PSEUDO MEDIUM GRADATION PICTURE PROCESSING SYSTEM
摘要 PURPOSE:To apply a density restoration processing and to realize the processing having the higher quality and higher speed than the method which has been used so far, in the processings such as the magnification/reduction/rotation, etc., of a pseudo medium gradation image. CONSTITUTION:An optimum window size is determined by an inputted image processing item by a density restoration window derivation part 108. Moire and scratches, etc., are suppressed by performing the mapping of the window for which a byte boundary high speed processing is taken into consideration and vibrating the shift amount of the window by an exchange picture element location derivation part 109.
申请公布号 JPH0830774(A) 申请公布日期 1996.02.02
申请号 JP19940165233 申请日期 1994.07.18
申请人 HITACHI LTD 发明人 IGUCHI HIROAKI;KUROSU YASUO;YOKOYAMA YOSHIHIRO
分类号 H04N1/393;G06T3/00;G06T3/40;G06T5/00;H04N1/40 主分类号 H04N1/393
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