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. |