'RaspberyPI high quality camera with opencv on max resolution
I bought RPI high quality camera and trying to make it work it with opencv and python.
I'm using Raspbery PI4 with latest updates (sudo apt update && sudo apt full-upgrade)
Its max resolution is 4056x3040 but it won't works on opencv with resolution more than 2560x1680.
With raspistill it works normally even on 4056x3040
I tried next resolutions in opencv:
- 2048x1536 works
- 2048x1680 works
- 2240x1680 works
- 2560x1440 works
- 2560x1680 and above not works
raspistill command (works):
raspistill -w 4056 -h 3040
Python example code to work with max resolution (not works):
import cv2 as cv2
cap = cv2.VideoCapture(0)
if not cap.isOpened():
print("Cannot open camera")
exit()
HIGH_VALUE = 10000
# (Of cause, I tried to set manually all resolutions in next two lines)
cap.set(cv2.CAP_PROP_FRAME_WIDTH, HIGH_VALUE)
cap.set(cv2.CAP_PROP_FRAME_HEIGHT, HIGH_VALUE)
width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
print(f"Camera resolution: {width}x{height}") # prints 4056x3040
while True:
ret, frame = cap.read()
if not ret:
# Here it exit if resolution is 2560x1680 and above
print("Can't receive frame (stream end?). Exiting ...")
break
cv2.imshow('frame', frame)
if cv2.waitKey(1) == ord('q'):
break
cap.release()
cv2.destroyAllWindows()
Thanks for any help.
Sources
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Source: Stack Overflow
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