10 b) Consider the following 4x4 image patch given by a matrix / where: 70 000 1 1 1 5 1 2 4 7 12 2 3 7 i) Perform histogram equalisation on I, and find the resulting image. Show the necessary steps. ii) When attempting to histogram-equalise an RGB image, explain why independently performing equalisation on three separate colour channels is likely to lead to an incorrect equalisation. iii) State how histogram equalisation should be performed on colour images. iv) With suitable illustrations, show how histograms can be used for converting greyscale images to binary images through thresholding. 3 2 v) 2 State a method that can be used for deciding the thresholding point using a histogram. 10 b) Consider the following 4x4 image patch given by a matrix / where: 70 000 1 1 1 5 1 2 4 7 12 2 3 7 i) Perform histogram equalisation on I, and find the resulting image. Show the necessary steps. ii) When attempting to histogram-equalise an RGB image, explain why independently performing equalisation on three separate colour channels is likely to lead to an incorrect equalisation. iii) State how histogram equalisation should be performed on colour images. iv) With suitable illustrations, show how histograms can be used for converting greyscale images to binary images through thresholding. 3 2 v) 2 State a method that can be used for deciding the thresholding point using a histogram