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How to overexpose an image

asked 2019-12-14 12:37:38 -0500

sgarg2 gravatar image

updated 2019-12-14 12:48:04 -0500

berak gravatar image

Hi,I have an image taken against a bright background via webcam.Now obviously the image is highly underexposed. I would like to know what algoithms I can apply that will help me to avoid underexposed image If it helps I have included two images the underexposed one and the same image with histogram equalisation applied on it. But I want to know what else can be done to improve the quality of the image. And I apologise for the vagueness and lack of specificity.

image description(/upfiles/15763485584671216.jpg)

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LBerger gravatar imageLBerger ( 2019-12-14 15:08:41 -0500 )edit

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answered 2019-12-14 13:18:35 -0500

mvuori gravatar image

Gamma correction should do it:

https://docs.opencv.org/3.4/d3/dc1/tu...

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tried that no change.The face became more dark

sgarg2 gravatar imagesgarg2 ( 2019-12-14 13:25:47 -0500 )edit
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Asked: 2019-12-14 12:37:38 -0500

Seen: 90 times

Last updated: Dec 14 '19