Patent ID: 6822625
Filing Date: 2004-11-23
Classification: G09G,H04N

Abstract:
An image processing apparatus comprising:pixel judgment means; and pixel correction means, each said pixel judgment means and said pixel correction means receiving digital input picture signals of R, G, and B, wherein said pixel judgment means includes target pixel detection means for detecting a target pixel having a peak level in said input picture signal and edge detection means for detecting an edge from a total of 2n+1 pixels of the target pixel and n pixels preceding and succeeding the target pixel; wherein said pixel correction means includes correction coefficient selection means for selecting a peak level correction coefficient according to an output from said target pixel detection means and for selecting an edge correction coefficient according to an output from said edge detection means; and wherein a level of the target pixel is corrected and an edge of said input picture signal is corrected with a pixel of said input picture signal being corrected according to said peak level correction coefficient and said edge correction coefficient, respectively.