Problem $3.$ Canny Edge Detection

Consider the pepper.png image. Convert it to Grayscale using library function. Use the

following steps to apply Canny edge detection.

Apply Gaussian filtering to denoise the image.

Compute the image gradient magnitude and orientation $\backslash$theta using the Sobel kernel.

Quantise the orientation with intervals of $45\backslash$deg $\backslash$theta in$[-22\mathrm{.}5\backslash$deg $,22\mathrm{.}5\backslash$deg $]$ is

quantised to $0\backslash$deg