Patent ID: 8417030
Filing Date: 2013-04-09
Classification: G06T

Abstract:
1. A method of image edge enhancement, comprising: determining edge trend for an image in accordance with second order gradient value of a center pixel in different directions; performing interpolation operation with the center pixel, and calculating absent color components of pixels; and performing edge enhancement for the image in accordance with original color component of the center pixel and the edge trend of the image based on Bayer data, wherein the step of determining edge trend for an image in accordance with second order gradient value of a center pixel in different directions further comprises: determining a second order gradient value H in the horizontal direction and a second order gradient value V in the vertical direction of the center pixel by a 3×5 Bayer matrix and a 5×3 Bayer matrix; determining a second order gradient value X in the 135 degree direction and a second order gradient valve Y in the 45 degree direction of the center pixel by a 5×5 Bayer matrix; comparing, respectively, a maximum Max if both Max if at least one of Max if Min if Min