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Question

How is negative of an image obtained with intensity levels [0,L-1] with “r” and “s” being pixel values?

a.

s = L – 1 + r

b.

s = L – 1 – r

c.

s = L + 1 + r

d.

s = L + 1 + r

Answer: (b).s = L – 1 – r

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Q. How is negative of an image obtained with intensity levels [0,L-1] with “r” and “s” being pixel values?

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