Exercise 2: Read "rice" and "cameramen" images;

(1) Find the dimension of the images;

(2) Perform addition of two images in uint8 and double, compare the difference;

(3) Perform subtraction of two images in uint8 and double, compare the difference;

(4) Perform multiplication of two images in uint8 and double, compare the difference;

(5) Perform division of two images in uint8 and double, compare the difference.