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Questions - basler

gst-launch-1.0 not showing video while pipeline is playing

I am trying to use a basler camera on an IMX8m-plus board. The camera is detected as: root@ucm-imx8m-plus:~# v4l2-ctl --list-devices (): /dev/v4l-subdev0 mxc-isi-cap (platform:32e00000.isi:c...
test-img

kremerf

gstreamer

yocto

basler

Votes: 0

Answers: 0

How to add widgets to pypylon ImageWindow?

Now I'm working with pypylon (https://github.com/basler/pypylon) which is a Python wrapper for C++ library for working with Basler camera. This library provides an oportunity to retrieve data (images,...
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Dmytro Kolupaiev

python

matplotlib

image-processing

basler

Votes: 0

Answers: 0

OpenCV & C++: returned cv::Mat causes a Segmentation Fault

I'm writing a class that grabs frames from basler USB cameras using pylonAPI and converts them to openCV format. Here's the code of the grabbing method: std::pair<cv::Mat, cv::Mat> GrabPair() ...
test-img

Mikhail Grechukhin

c++

opencv

basler

Votes: 0

Answers: 1

Latest Answer

the problem here is, that the Mat constructor using an external pointer is NOT refcounted. once you leave the GrabPair function, both Mat's are invalid (dangling pointer) you need to clone() them (dee...
test-img

berak

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