How to catch "OpenCV Error" in Python
you can easily inspect the error object, like
fvs = imutils.video.FileVideoStream(args.input).start()
while fvs.more():
frame = fvs.read()
try:
grayframe = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
except cv2.error as e:
# inspect error object
print(e)
for k in dir(e):
if k[0:2] != "__":
print("e.%s = %s" % (k, getattr(e, k)))
# handle error: empty frame
if e.err == "!_src.empty()":
break # break the while loop
Try cv2.error
.
try:
...
except cv2.error as e:
...
Here's the page from the documentation but it's only for the C/C++ interface -- I can't find anything on the Python error handling for OpenCV (I find the documentation for the Python interface to be sadly lacking).