Which of the facts(s) is/are true for the first order derivative of a digital function?
Posted: Thu Jul 14, 2022 10:06 am
a) Must be nonzero in the areas of constant grey values
b) Must be zero at the onset of a gray-level step or ramp discontinuities
c) Must be nonzero along the gray-level ramps
d) None of the mentioned
b) Must be zero at the onset of a gray-level step or ramp discontinuities
c) Must be nonzero along the gray-level ramps
d) None of the mentioned