Q6 Binary images play important roles in applications such as image segmentation. Morphological operation is a set of methods for enhancement of binary images. Suppose BW is a binary image and SE is the structural element: Binary Image (BW): 000000000 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 1 0 0011 11100 0 0 1110010 000000000 Structural Element (SE): 010 111 0 1 0 (a) Apply pixel-wise AND-operation in-between SE and the 3x3 neighbourhood area of the pixel (4, 3) in BW. Assume coordinate for the top-left pixel in BW is (1,1). (2 marks) (b) Apply image erosion operation on BW by using SE as the structural element. Show the result and the details (at pixel level). (6 marks) (c) Apply image open operation on BW by using SE given above as the structural element. Show the result and the details. (6 marks) (d) One popular method to generate a binary image is thresholding. (i) Describe the main idea of Otsu threshold. (3 marks) (i) Explain why Otsu threshold is popular. (3 marks) TOTAL MARKS FOR Q6:20