How to convert yuy2 to a BITMAP in C++

Question

I\'m using a security camera DLL to retreive the image from the camera. The DLL call a function of my program passing the image buffer as a parameter, but the image is in yu

Answer 1

This formula worked:

int C = luma - 16;
int D = cr - 128;
int E = cb - 128;
r = (298*C+409*E+128)/256;
g = (298*C-100*D-208*E+128)/256;
b = (298*C+516*D+128)/256;

I got this from a matlab example.

The gotcha is: in memory, Windows bitmaps aren't RGB, they are BGR. If you are writing to a memory buffer, you need to do something like this:

rgbbuffer[rgbindex] = (char)b;
rgbbuffer[rgbindex + 1] = (char)g;
rgbbuffer[rgbindex + 2] = (char)r;