Patent ID: 7471343
Filing Date: 2008-12-30
Classification: G06T,H04N

Abstract:
1. An image processing device for performing image processing on image data, the image processing device comprising: a statistical value calculating device that performs statistical processing on the image data to generate statistical value data representing statistical values; a scene detecting device that detects whether a change occurs in a scene based on the image data; a correction parameter calculating device that weights the statistical value data of a plurality of frames in accordance with the detection result by the scene detecting device to calculate a correction parameter; and an image correcting device that performs image correction processing on the image data based on the correction parameter, wherein, when it is detected that no change occurs in the scene, the correction parameter calculating device calculate a correction parameter P(n) of a current frame in accordance with the equations: P(n)=A*S(n)+B*P(n−1) and 1=A+B, where S(n) is statistical value data of a current frame, P(n−1) is a correction parameter of a frame prior to the current frame by one frame, A is a first coefficient, and B is a second coefficient.