Question: ( 2 ) A and B are two almost identical images. If | A - B | is performed, which of the following statements is

(2) A and B are two almost identical images. If |A-B| is performed, which of the following statements is true?
a. The histogram of the difference image has a high peak around (0).
b. The difference image is a measure of the gradient.
c. The difference image can be used to spot changes in object colors.
d. a and b
e.b and c
f. a, b and c
 (2) A and B are two almost identical images. If |A-B|

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