An image processing system, image processing method, and image processing program
For the 2N pixels consisting of one side of N successive pixels orthogonal to the boundary between blocks include the object pixel obtains a difference value between adjacent pixels, which is compared with a threshold corresponding to the maximum value determining whether to filter.
Abstract
In the present invention, or performed with reference to correction processing of 2N pixels consisting of one N pixels sandwiching the boundary consecutive orthogonal to the boundary includes a boundary pixel (signal level V Further, the pixels belonging to the block is the unit of processing discrete cosine transform processing in the image compression in the image processing system for performing a filtering process, at least half, including a target pixel of interest among all the pixels constituting the block to be processed Find the maximum value of the difference value between adjacent pixels for the pixel. For the 2N pixels consisting of one side of N successive pixels orthogonal to the boundary between blocks include the object pixel obtains a difference value between adjacent pixels. The obtained difference value is compared with a threshold corresponding to the maximum value determining whether to filter. If it is determined to perform the filtering process, it performs a filtering process using the one-sided M pixels sandwiching it with the target pixel. N is a positive integer, M is a positive integer, and the M