Digital Image Processing Using Scilab Pdf -

// 6. Threshold processed = edges > 50; imshow(processed); end

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// 4. Enhance contrast img = histeq(img); n] = size(gray_img)

// Low-pass filter in frequency domain [m, n] = size(gray_img); cx = m/2; cy = n/2; radius = 30; H = zeros(m, n); for i = 1:m for j = 1:n if sqrt((i-cx)^2 + (j-cy)^2) <= radius H(i, j) = 1; end end end cx = m/2

// Opening (erosion followed by dilation) opened = imopen(binary, se);