EE440 – Introduction to Digital Imaging Systems Lab. 6 1.(30 %) Perform edge detection via derivative filtering on 5_2.asc to highlight the edges. a)Read in the image and normalize the pixel values by dividing by 255 b)Use a Sobel operator to detect vertical edges in original image c)Use the rotation of that Sobel operator to detect horizontal edges in the original image d)Find the norm of the gradients. In other words, combine the horizontal and vertical edge images using: sqrt(x_edge^2 + y_edge^2) e)Threshold the combined edge image to generate a binary edge image. Determine your threshold value to create most reliable edges. Submit the original, vertical-edge, horizontal-edge, combined-edge, and the final image. Hint: 1. MATLAB commands: imagesc, conv2 2. Use imagesc to show your edge images. Notice that even though imagesc and imshow
has intentionally blurred sections.
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