function yuv = ConvertRgbToYuv(rgbUint8)
% [m, n, c] = size(rgb);
% yuv = zeros(m, n, 3);
% yuv(:, :, 1) = 0.299*rgb(:, :, 1) + 0.587*rgb(:, :, 2) + 0.114*rgb(:, :, 3);
% yuv(:, :, 2) = -0.147*rgb(:, :, 1) + -0.288*rgb(:, :, 2) + 0.436*rgb(:, :, 3);
% yuv(:, :, 3) = 0.615*rgb(:, :, 1) + -0.514*rgb(:, :, 2) + -0.100*rgb(:, :, 3);
[mn, c] = size(rgbUint8);
rgb = double(rgbUint8); %very important; If not convert uint8 to double, -0.1687*rgb(:, 1) will always be zero
yuv = uint8(zeros(mn, 3));
yuv(:, 1) = min(255,max(0,0.299*rgb(:, 1) + 0.587*rgb(:, 2) + 0.114*rgb(:, 3)));
yuv(:, 2) = min(255,max(0,-0.1687*rgb(:, 1) -0.3313*rgb(:, 2) + 0.5*rgb(:, 3) + 128));
yuv(:, 3) = min(255,max(0,0.5*rgb(:, 1) -0.4187*rgb(:, 2) -0.0813*rgb(:, 3) + 128));
end