I want to fit a circle just like the black line drawn in the figure and trying to find its radius. below is the code i am writing but not getting anything significant. kindly help me how to approch this kind of problems %%---------------------------- matlab code -----------------------------------%% clear all clc % read the image img = imread('gra.png'); % convert the image to grayscale img_gray = rgb2gray(img); % perform edge detection using the Canny algorithm edge_img = edge(img_gray, 'sobel'); % perform hough transform to detect circles [centers, radii] = imfindcircles(edge_img, [10 50000],'ObjectPolarity','bright','Sensitivity', 0.95); % find the largest circle [max_r, max_i] = max(radii); max_center = centers(max_i, :); % plot the results figure; imshow(img); hold on; viscircles(max_center, max_r, 'EdgeColor', 'b'); how to find the radius of a circle from an image image-processing circle fitting hough transformation
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