>> I = imread ('RBC_5.png'); I2= rgb2gray(I); I3= histeq(I2); img= uint8(I3);
figure, imshow(I); figure, imshow(img);
e = edge(img, 'canny'); imshow(e);
radii = 15:1:40; h = circle_hough(e, radii, 'same', 'normalise'); ??? Undefined function or method 'circle_hough' for input arguments of type 'double'.
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