| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image correction device, capable of performing correction processing of an input image without using a camera shake sensor. <P>SOLUTION: The image correction device includes a maximum local difference value determination means 2 which determines, from the input image, a window area maximum local difference value for each coordinate of a pixel unit showing a relative position of a near pixel to a target pixel; and a gradient calculation means 3 which determines a difference between window area maximum local difference values as a maximum local difference gradient value. The device further includes a filter range determination means 4 which determines, among the maximum local difference gradient values, a range of coordinates corresponding to maximum local difference gradient values of a predetermined value or more as a filter factor existing range; a filter factor determination means 5 which calculates a filter factor in the filter factor existing range; and a correction means 102 which performs reverse processing of filter processing to the input image by use of the filter factor. <P>COPYRIGHT: (C)2010,JPO&INPIT |
