Edge detection method based on Bayer RGB images

The invention provides an edge detection method based on Bayer RGB images, which comprises the following steps: carrying out gradient calculation on concolorous pixel arrays using a target pixel point as the center to obtain the sum of the gradient absolute values of the vertical direction gradient and the horizontal direction gradient of the target pixel point; respectively calculating the sum of the gradient absolute values of the target pixel point and an adjacent pixel point; and judging whether the target pixel point is the edge point or not according to the sum of the gradient absolute values of the target pixel point and the adjacent pixel point and the comparison relationship between a high threshold value and a low threshold value. The method directly carries out the edge detection on the Bayer RGB image format, and does not need additional hardware for edge detection, so when being used, the edge detection method based on the Bayer RGB images provided by the invention has the advantages of simplicity, easy implementation and low hardware cost.