If your original image was 1024 by 1280 pixels and you need the central 12.5% (1/8th) (from pixel 448, 1200 to 575, 1359, if I've done the math right in my head), your routines on the cropped image, since they're dealing with only 1/8 the number of points, should run at least 8 times faster. Now do your processing using the cropped image. Now you'll have a full-resolution, but smaller, Image basically at the "cost" of copying the number of pixels you specify for the crop from the Camera Image (buffer) to your Working Image (buffer). You can use the IMAQ Extract function (found on the Image Manipulation sub-Palette) to create a full-resolution "cropped" image specified by the top-left and bottom-right coordinates of the cropping rectangle. ![]() what Im trying to figure out is, how does anyone know where 500:500 is or where 20:20 is in the video or picture, where does 0 or 500 start on a picture or video, and. 1024 x 1280 vs 480 x 640), an internal buffer of that size is allocated, and will be where the camera places the image. ffmpeg -i in.mp4 -filter:v 'crop500:500:20:20' Vid-out.mp4 ffmpeg -i in.mp4 -filter:v 'cropW:H:W:H' Vid-out.mp4. ![]() Your Camera settings define the parameters of the Image Buffer - when you specify the number of pixels that your camera should return (e.g.
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