Given the image I and the transformation T indicate the foll

Given the image I and the transformation T, indicate the following (justifying the choice): which among the following images is T(I): which among the following histograms corresponds to I.

Solution

(b) From the image we can see that there are both black (0) and white (255) present and also in between colour range. hence b2 and b3 are wrong which either says no 0 and 255 or says only 0 and 255.

b1 is the right answer.

(a) T converts both 0 and 255 to 0(black). So , the nose part which is black (0) will remain black(0). hence a2 is wrong. Also the white(255) areas around nose will convert to black(0). which is only present in a3. hence a3 is the right answer.