Revision history [back]

How to cature in GRAYSCALE directly from source

I'm capturing web cam using open cv and I'd like to get direct Grayscale image from source. Below shows a sample code that I'm using for capturing video feed. Found this reference however cant see any gray scale codes. http://docs.opencv.org/2.4/modules/highgui/doc/reading_and_writing_images_and_video.html#videocapture-set

capture = cvCreateCameraCapture(0);
if(!capture)
    printf("Video Load Error\n");

cvSetCaptureProperty(capture, CV_CAP_PROP_FRAME_WIDTH, 640.00);
cvSetCaptureProperty(capture, CV_CAP_PROP_FRAME_HEIGHT, 480.00);

Secondly if anyone knows how to use "CV_CAP_PROP_CONVERT_RGB" with C-API. Please let me.

p.s: I'm aware that C - API is deprecated. However I'm maintaining an old project, so need to deal with it.

How to cature capture in GRAYSCALE directly from source

capture = cvCreateCameraCapture(0);
if(!capture)
    printf("Video Load Error\n");

cvSetCaptureProperty(capture, CV_CAP_PROP_FRAME_WIDTH, 640.00);
cvSetCaptureProperty(capture, CV_CAP_PROP_FRAME_HEIGHT, 480.00);

Secondly if anyone knows how to use "CV_CAP_PROP_CONVERT_RGB" with C-API. Please let me.

p.s: I'm aware that C - API is deprecated. However I'm maintaining an old project, so need to deal with it.