QImage to yCrCb image

[mrdebug]

I need a way to fill a yCrCb image with a QImage object. How can I do this? How have I to fill the code below?

/* Y */
for (int y = 0; y < height; y+= 2) {
    for (int x = 0; x < width; x+= 2) {
        pict->data[0][y * pict->linesize[0] + x] = ???;
    }
}
/* Cb and Cr */
for (int y = 0; y < height / 2; y++) {
    for (int x = 0; x < width / 2; x++) {
        pict->data[1][y * pict->linesize[1] + x] = ???;
        pict->data[2][y * pict->linesize[2] + x] = ???;
    }
}

[SGaist]

Hi,

What algorithm are you currently using for the color space conversion ?

[mrdebug]

None.
I'm stop at

QImage QITemp= Image.convertToFormat(QImage::Format_RGB888);

An now?

[SGaist]

You have the math here.