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Manipulate RGB Values for an Image

Asked by Billy

Billy (view profile)

on 19 Nov 2012

Hello, I was wondering how I would increase the value of the blue layer of a .jpg. So far, I have only been able to find what those values are, using size(x).

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Billy

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1 Answer

Answer by Walter Roberson

Walter Roberson (view profile)

on 19 Nov 2012
Accepted answer
BX = 0.20;   %20 percent
IM(:,:,3) = IM(:,:,3) * (1 + BX);

Provided that IM is uint8 dataclass, the limiting to 255 will happen automatically.

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Walter Roberson

Walter Roberson (view profile)

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