[C++] - RGB to YCbCr

RGB轉成YCbCr(YUV)的值有一個奇妙的公式

Y=R*0.299+G*0.587+B*0.114;
U=R*-0.169+G*-0.332+B*0.5+128;
V=R*0.5+G*-0.419+B*0.0813+128;

YCbCr(YUV)轉成RGB則是

R = Y+(1.4075*(V-128));
G= Y-(0.3455*(U-128)-(V-128)));
B= Y+(1.779*(U-128));

單純紀錄而已!!