luminance component of an image
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Hi, I have a frame of a vedio sequence I which is a 288*532 double. How can I extract only the luminance component? Thanks.
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Accepted Answer
Mark Sherstan
on 30 Nov 2018
Run the following:
I = imread('test.png');
J = rgb2gray(I);
rgb2gray uses the same formual which is used to calculate luminance (to 3 decimal places the formula is):
0.299 * R + 0.587 * G + 0.114 * B
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More Answers (3)
az
on 30 Nov 2018
1 Comment
Image Analyst
on 30 Nov 2018
Edited: Image Analyst
on 30 Nov 2018
Just attach the one frame, not the entire video. One frame will certainly be small enough to attach!
And explain why using rgb2gray() on the RGB image did not work.
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