If the images are displayed using 8-bits, then, what is the range of the value of an image if the image is a result of subtraction operation?
(a) 0 to 255
(b) 0 to 511
(c) -255 to 0
(d) None of the mentioned
This question was addressed to me by my college professor while I was bunking the class.
Question is from Enhancement using Arithmetic Operations in chapter Image Enhancement of Digital Image Processing