USB Camera has no zoom

1

Hi everyone,

I have a Jetson AGX Xavier and “see3CAM_CU55 - 1/2.5” 5.0 MP Low Noise USB Camera". I am trying to run this code but camera does not zoom. Why is this happening?. Thank you for every reply.

import cv2

cap = cv2.VideoCapture(1)

cap.set(cv2.CAP_PROP_FRAME_WIDTH, 640)
cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 480)
cap.set(cv2.CAP_PROP_ZOOM, 100)

while True:
ret, frame = cap.read()
cv2.imshow("a", frame)

key = cv2.waitKey(1) & 0xFF
if key == ord('q'):
    break

cv2.destroyAllWindows()
2

I didn’t find anything on internet about ee3cam_cu55. Are you sure it exists and it has zoom?
Anyway, as it’s probably some exotic camera, you should probably try to access it though it’s own API.

3

it does not advertise any zoom function, so it probably doesn’t have one.

4

No, I’m sure this feature exists. because i ran this code in windows and the camera zoomed.

5

CAP_PROP_ZOOM is implemented for dshow and MSMF, so it might work.

perhaps you should vary the values you pass (100) and see if that does anything?