Filtering method and filtering apparatus in image processing

摘要

Embodiments of the present invention provide a filtering method and device in image processing. The device includes: a dividing unit configured to divide a first filtering window into a plurality of blocks; a determining unit configured to determine a filtering window area according to relevance between a central block and other non-central blocks in the plurality of blocks; and a filtering unit configured to perform filtering processing on an image in the determined filtering window area. With the method and device of the embodiments of the present invention, a boundary of an object will not be crossed in filtering, and in removing noise, information on other objects will not be introduced to affect the result of filtering. And the size of a filtering window may be determined while filtering is performing, which may be carried out in one path, thereby avoiding time delay resulted from execution of two paths of a conventional method where an edge is detected first and then the size of a filtering window is determined.