Image edge detection method based on neighbourhood dispersion
A technology of neighborhood dispersion and image edge, applied in image analysis, image data processing, instruments, etc., to avoid interruption of image contours
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[0034] The present invention will be described in detail below with reference to the drawings and specific embodiments.
[0035] The image edge detection method of the present invention based on neighborhood dispersion is implemented according to the following steps:
[0036] Step 1) Convert the original color image into a single-channel 8-bit grayscale image, the grayscale of the 8-bit grayscale image is between 0-255;
[0037] Step 2) Find the dispersion coefficient matrix M of the eight-bit grayscale image. The dimension of the dispersion coefficient matrix M is consistent with the size of the original image.
[0038] Set as a 2×2 sampling template for grayscale images, such as figure 1 Shown, z i To sample the gray value of each pixel in the template, use the sample template to move from the first row and the first column of the image column by column row by row, calculate the average deviation of each pixel and save it in the dispersion coefficient matrix The corresponding positi...
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