Patent ID: 8189946
Filing Date: 2012-05-29
Classification: H04N

Abstract:
1. An image processing apparatus comprising: a measuring unit configured to acquire edge intensity information by dividing a frame of an image into a plurality of blocks and measuring an edge of an image in each block; a storage unit configured to store the edge intensity information of respective blocks for at least one frame; a determination unit configured to determine a block to be filtered based on the edge intensity information of the respective blocks stored in the storage unit; and a control unit configured to determine whether or not to apply filtering processing to a first block, which is determined by the determination unit as the block to be filtered, of a current frame of an image based on the edge intensity information of the first block in the current frame acquired by the measuring unit, and edge intensity information of a second block corresponding to the first block in an immediately preceding frame of the current frame, which is stored in the storage unit, wherein the control unit calculates an edge intensity for each block of the immediately preceding frame by adding the edge intensity information stored in the storage unit for each block, calculates an edge intensity for each block of the current frame by adding the edge intensity information of the current frame measured by the measuring unit for each block, and determines whether or not to apply the filtering processing to the first block of the current frame of the image, based on the edge intensities of the second block of the immediately preceding frame and the first block of the current frame.