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How can I generate an image using buildroot with opencv2 in it?

In "Target Packages->Libraries->Graphics->opencv2.4" says that python_opencv depends on numpy, which isn't available.

An self made app(which is in the built image as well) uses python3.6 and opencv2.

Buildroot Version: 2017.08-rc3

Rafael Nicolay
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1 Answers1

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Back when opencv was introduced in Buildroot, there was indeed no numpy package, so support for doing OpenCV in Python could not be added, hence this comment. But since then, a python-numpy package was added, and it is even used in the opencv3 package to provide Python support.

So, the opencv package simply needs to be updated to leverage the python-numpy package to provide Python support.

As a side note: why are you using 2017.08-rc3 ? It is a release candidate, not even a final release. And why this version ? Why not using the LTS version 2018.02.x, which we maintain during one year with security updates and bug fixes ?

Thomas Petazzoni
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  • About the version of buildroot: that's a good question! Was not my decision. Maybe was the last version at the time we started development. – Rafael Nicolay Aug 30 '18 at 11:44
  • Well, just switched for python 3 and updated buildroot to 2018.02.x. Everything is working fine now. Thanks! – Rafael Nicolay Aug 30 '18 at 13:28