Discover MakerZone

MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

New to MATLAB?

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).



Billy (view profile)


No products are associated with this question.

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.


Walter Roberson

Walter Roberson (view profile)

Contact us