Normalizing pixel colours of an RGB image

Hello,

I need to normalize an RGB image by replacing each channel (RED, GREEN and BLUE) of each pixel with the following values:

RED=RED/(RED+GREEN+BLUE)

GREEN=GREEN/(RED+GREEN+BLUE)

BLUE=BLUE/(RED+GREEN+BLUE)

How can I do it? Thank you so much!

[Adam Danz]

Are you reading the image in to matlab or is the image generated in matlab?

Either way, we need more info.

[Riccardo Rossi]

Hi, I am reading the image into Matlab as a 3888x2592x3 uint8.

[Image Analyst]

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Answer 1

[DGM]

inpict = imread('peppers.png'); % uint8
inpict = im2double(inpict); % unit-scale float

outpict = inpict./sum(inpict,3); % all at once

imshow(outpict) % done