Raw image data from camera like “645 PRO”

Question

A time ago I already asked this question and I also got a good answer:

I\'ve been searching this forum up and down but I couldn\'t find what I reall

Answer 1

as @Wildaker mentioned, for a specific code to work you have to be sure which pixel format the camera is sending you. The code from @thomketler will work if it's set for 32-bit RGBA format.

Here is a code for the YUV default from camera, using OpenCV:

cv::Mat convertImage(CMSampleBufferRef sampleBuffer)
{
    CVImageBufferRef cameraFrame = CMSampleBufferGetImageBuffer(sampleBuffer);
    CVPixelBufferLockBaseAddress(cameraFrame, 0);

    int w = (int)CVPixelBufferGetWidth(cameraFrame);
    int h = (int)CVPixelBufferGetHeight(cameraFrame);
    void *baseAddress = CVPixelBufferGetBaseAddressOfPlane(cameraFrame, 0);

    cv::Mat img_buffer(h+h/2, w, CV_8UC1, (uchar *)baseAddress);
    cv::Mat cam_frame;
    cv::cvtColor(img_buffer, cam_frame, cv::COLOR_YUV2BGR_NV21);
    cam_frame = cam_frame.t();

    //End processing
    CVPixelBufferUnlockBaseAddress( cameraFrame, 0 );

    return cam_frame;
}

cam_frame should have the full BGR frame. I hope that helps.