about conversion of color spaces

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Chandra Kurniawan
Chandra Kurniawan le 25 Jan 2012

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rgb2ycbcr
MATLAB YCbCr color space is often referred to as YUV.

3 commentaires

Priyanka
Priyanka le 25 Jan 2012
but YUV color space is not exactly similar to Ycbcr color space.there are different conversion equations for that like U=0.493(B-Y),V=0.877(R-Y) and conversion matrix also. so How I can impement these equations for finding YUV color space.
Chandra Kurniawan
Chandra Kurniawan le 25 Jan 2012
Hi,
I see the problem
from this link : http://en.wikipedia.org/wiki/YUV
we can also implement the formula by :
RGB = imread('football.jpg');
R = RGB(:,:,1);
G = RGB(:,:,2);
B = RGB(:,:,3);
Y = 0.299 * R + 0.587 * G + 0.114 * B;
U = -0.14713 * R - 0.28886 * G + 0.436 * B;
V = 0.615 * R - 0.51499 * G - 0.10001 * B;
YUV = cat(3,Y,U,V);
imshow(YUV);
Priyanka
Priyanka le 27 Jan 2012
Thanks alot.

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