Give a single intensity transformation function for spreading the intensities of an image so the lowest intensity is 0 and the highest is L- 1, where L is the number of intensity levels in the image. (a) (b) Two images, f(x, y) and g(x, y), have histograms h and h. Give the conditions under which the histograms of the following can be determined. i) f(x.y)+g(x, y) i) f(x.y)-g(x.y) i)fxy)xg(x,y) iv) f(x, y) + g(x, y)