USB interruption?

[j5207]

Hi,

After I run the executable, I found out that in some cases, the image transmission would be interrupted by other action from USB device(mouse or keyboard). The image would be turn to be blue, green, red, or yellow during interruption, which seems to be that there's channel loss in RGB. Would you mind help inform us what would be the possible cause for this issue?

Thanks

[j5207]

I just found out this would happen when enable auto white balance. That's strange

[danyu9394]

Hi,

yeah, After I use calcHist, foreach and lambda in the auto white balance, sometimes it has this problem. Have you tried to compile the program using cmake? I think this problem only occur when I use makefile for some reason.
Or if you mind, you can go to the code void apply_white_balance( cv::InputOutputArray& opencvImage) and change to other methods(commented out) that don't use opencv acceleration(calcHist and foreach), only the double for loop iteration, it is much slower but don't have this issue.

[j5207]

Hi,

Thanks for response. I've tired method 1 and method 2, and the whole image remains to be "green", compared with OpenCV method, which seems the white balance failed under this. I'm still try to find out what cause this issue

[j5207]

Also, I'm using Cmake, and this issue keep occurs. Seems the greenish is related to the data precision? When I switch from float to integer in the OpenCV method, this issue appears

[j5207]

well, seems I didn't memset the array to zeros and I'm being stupid. Thanks

[danyu9394]

Hi, I am traveling recently and don’t have camera with me at the moment. Will check back once I get back!

…

On Thu, Oct 31, 2019 at 1:00 AM Ji Han ***@***.***> wrote: well, seems I didn't memset the array to zeros and I'm being stupid. Thanks — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#10>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADVG2BN2OMAHJRNSPIHBEH3QRG4UHANCNFSM4JE4S6HA> .