find luminance vector in an image

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Anusha
Anusha 2013-10-19
编辑： Azzi Abdelmalek 2013-10-19
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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Azzi Abdelmalek
Azzi Abdelmalek 2013-10-19
编辑：Azzi Abdelmalek 2013-10-19
If Im is your nxmx3 rgb image
yi=Im(:,:,1)*0.299+Im(:,:,2)*0.587+Im(:,:,3)*0.114

更多回答（1 个）

Walter Roberson
Walter Roberson 2013-10-19
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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