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it's a typical python nooooooob error. you're blindly pasting other ppls code.

you have to add CHECKS,

• if the capture could be opened at all: if not cap.isOpened(): ...
• if it (still) could read an image: `if not img is NONE: ...

VideoCapture will NEVER trow any exceptions on failure, so you HAVE to check manually

also, next time (can't help to say it -- please RESEARCH your problem, before asking anywhere, it'S the most prominent error happenig to python kids (they're all like you).

it's a typical python nooooooob error. you're blindly pasting other ppls code.

you have to add CHECKS,

• if the capture could be opened at all: if not cap.isOpened(): ...
• if it (still) could read an image: `if if not img is NONE: ...

VideoCapture will NEVER trow any exceptions on failure, so you HAVE to check manually

also, next time (can't help to say it -- please RESEARCH your problem, before asking anywhere, it'S it's the most prominent error happenig to python kids (they're all like you).

it's a typical python nooooooob error. you're blindly pasting other ppls code.

you have to add CHECKS,

• if the capture could be opened at all: if not cap.isOpened(): ...
• if it (still) could read an image: if not img is NONE: ...

VideoCapture will NEVER trow any exceptions on failure, so you HAVE to check manually

it's a typical python nooooooob error. you're blindly pasting other ppls code.

you have to add CHECKS,

• if the capture could be opened at all: if not cap.isOpened(): ...
• if it (still) could read an image: if not img is NONE: ...

VideoCapture will NEVER trow throw any exceptions on failure, so you HAVE to check manually