Question 10% Let I be an image where edge detection is to be performed. Mark all the statements that are correct. A. The Canny edge detection algorithm detects edges where the directional derivative along the direction of the gradient has a local maximum. F Smoothing before edge detection is important to reduce noise. B Smoothing before edge detection is not commonly employed because it makes the detected G. The Sobel filter can be produced by convolving edges less accurate. a 22 averaging filter with a 22 forward C A Gaussian image pyramid is a useful way for differences filter. processing an image at multiple scales. H] Edges in the image can be detected using image D. When designing a smoothing filter using a gradients with high magnitudes. Gaussian with a standard deviation of 5 , the size I The x derivative of an image can be produced of the Gaussian filter should be set to 55 to by convolving the image with a 1D Gaussian match the rounded value of the standard deviasmoothing filter in the y direction and then contion. E The image derivative in the X direction may be volving the result with a 1D Gaussian derivative filter in the x direction