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What is the effect of weighted area sampling on adjacent pixels?

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What is the effect of weighted area sampling on adjacent pixels?

(a) Intensity is increased

(b) Intensity is decreased

(c) Contrast is increased

(d) Contrast is decreased

I had been asked this question in an interview.

This intriguing question originated from Area Sampling in chapter Graphics Primitives of Computer Graphics

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Correct choice is (d) Contrast is decreased

The best explanation: The net effect of weighted area sampling is to decrease the contrast of adjacent pixels. This gives a lot of help in order to provide smooth transactions.

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