find luminance vector in an image

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Anusha
Anusha on 19 Oct 2013
Edited: Azzi Abdelmalek on 19 Oct 2013
yi = 0.299ri +0.587gi +0.114bi i=1,2,.M
Let Y the luminance vector computed starting from the palette P of the image
I.
Palette consist of RGB value...
What is the matlab code to find Yi value

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Accepted Answer

Azzi Abdelmalek
Azzi Abdelmalek on 19 Oct 2013
Edited: Azzi Abdelmalek on 19 Oct 2013
If Im is your nxmx3 rgb image
yi=Im(:,:,1)*0.299+Im(:,:,2)*0.587+Im(:,:,3)*0.114

More Answers (1)

Walter Roberson
Walter Roberson on 19 Oct 2013
Y = 0.299 * R + 0.587 * G + 0.114 * B
where R, G, B are the vectors or arrays of R, G, and B values.

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