Sub-Pixel Edge Detection using OpenCV Description Edge detection operator return subpixel level edge position. Using Canny filter as differential operator. Implementing according toCarsten Steger's method. Interpolation of second partial derivatives withFacet Model method. ...
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And then we extract subpixel edge contours and obtain contour data (number of contour subpixels, contour length) by the improved Canny operator and the FindContours function of the OpenCV library. In this way, the edge information of parts can be extracted from the original fuzzy boundary in ...
Subsequently, using the cosine look-up-table, find out the cosine value corresponding to y, and the result COS_half is obtained by shifting the cosine value right by 1 bit. Finally, in Figure 8d, the disp_w1 is used to determine whether the region is on edge. If it is not an edge...