MATLAB: Change the resolution in image acquired by webcam command

Question

the command i am using is

vid = webcam;
img= snapshot(vid);

and is there also a way i can crop the input image to specified region of interest?

Answer 1

cam.AvailableResolutions

check your camera available resolutions

Change the resolution.

cam.Resolution = '630x400';

for more help check the following link

https://www.mathworks.com/help/supportpkg/usbwebcams/ug/set-properties-for-webcam-acquisition.html