Get black image from multi cams

asked 2017-06-27 07:00:04 -0500

hoang anh tuan gravatar image

Hi everyone! My project uses 2 cameras to process work. I use opencv 3.2 on Windows 10.

At first, i get image normally from 2 cams. But at the next time, I just get image from a camera and get black image from other camera. Why? How to solve it?


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are those usb cams ? if you plug 2 cams into the same bus, you'll easily saturate it.

if it's a desktop pc, try to plug in one in the front and the other into the back (hoping, that those are differernt hubs).

else you'll have to cut down the resolution.

berak gravatar imageberak ( 2017-06-27 07:30:00 -0500 )edit

Yes, those are usb cams. I also plug in cams as you said. But not success. Tomorrow i will cut down the resolution

hoang anh tuan gravatar imagehoang anh tuan ( 2017-06-27 11:52:57 -0500 )edit

@berak: I tried it many times but not success. Poor me! :(

hoang anh tuan gravatar imagehoang anh tuan ( 2017-07-03 03:18:01 -0500 )edit