| 摘要 |
PROBLEM TO BE SOLVED: To provide a block noise eliminating apparatus capable of eliminating a block noise. SOLUTION: The block noise eliminating apparatus is provided with a peripheral pixel information generating means for acquiring a pixel value of each pixel in a reference pixel region from a digital signal after analog/digital conversion and calculating a difference absolute value among the pixels adjacent to each other in a horizontal direction in the reference pixel region; a block border discrimination means for discriminating whether or not a border position between a target pixel and an adjacent pixel at a predetermined side in left and right sides with respect to the target pixel on the basis of each difference absolute value; and a pixel value correction means for correcting the pixel value of a prescribed number of the correction object pixels around the border position on a horizontal line including the target pixel on the basis of the difference absolute value between the target pixel and the adjacent pixel and the magnitude relation of the pixel values when the border position is discriminated to be the block border. COPYRIGHT: (C)2003,JPO |
