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What is Gamma Correction?

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in Digital Image Processing by (701k points)
What is Gamma Correction?

(a) A Power-law response phenomenon

(b) Inverted Intensity curve

(c) Light brightness variation

(d) None of the Mentioned

The question was asked during an interview.

This intriguing question originated from Intensity Transformation Functions topic in chapter Intensity Transformations and Spatial Filtering of Digital Image Processing

1 Answer

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Correct option is (a) A Power-law response phenomenon

Easy explanation: The exponent in Power-law is called gamma and the process used to correct the response of Power-law transformation is called Gamma Correction.

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