Hello,
I installed Opencv and it worked just fine when I was working on QR Codes but now that i'm trying to use Aruco Markers I get this error.
Is there something I'm missing? My OpenCV version is the 4.1.0, it says "Compatibility: > OpenCV 3.0" here.
What should I do to fix that?
My OpenCV version is the 4.1.0,
outdated, we're at 4.3 now, please update (else part 2 below won't work...)
I installed Opencv
but you did not download/compile with opencv_contrib, where the actual aruco code lives
please see readme.md there for further build instructions
you need exactly the same version for opencv main and contrib (SIFT was moved back into main, license expired)
the contrib modules are on the master branch by default, so either get master branch for main, too, or
cd opencv_contrib
git checkout 4.3
if you don't need them, you also could disable the tests for now
cmake -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF
(then re-run cmake && make install)
I had the correct versions, but I had previously built opencv in the same path. Someone told me this:
As for why the error occurred, my hunch is that it's related to precompiled headers. Perhaps precompiled headers are already generated in that build directory and later some flags were changed that affected them but the precompiled headers were not regenerated. Was this directory previously used for another build, perhaps with the previous version, and not cleaned up?
It works now. I ran a small test program for opencv and for aruco marker. Thx for your help.
Asked: 2020-05-30 12:40:35 -0600
Seen: 6,106 times
Last updated: May 30 '20
