Hi Priyam26
Well, no, the detected image will always be <=(300, 300) resolution. You could perhaps try a model with a larger input size (which will increase the latency but will increase the resolution) or try upscaling the cropped image if you really need the detail. Another option would be to retrieve the bounding box for (300,300) preview and then scale it up to the camera resolution and then crop the larger frame (but the preview image must be squeezed, otherwise the bbox coordinates are off).
Hope this helps,
Jaka