'CvRTrees' does not name a type in OpenCV 3.0.0

[jmlich]

I was trying to compile OpenCFU with OpenCV 3.0.0, but it doesn't work.
src/processor/headers/Predictor.hpp:23:9: error: 'CvRTrees' does not name a type

More detailed build log is available at
https://copr-be.cloud.fedoraproject.org/results/sergiomb/opencv/fedora-22-x86_64/opencfu-3.8.11-3.fc22/build.log.gz

It seems that decision trees algorithms was completely rewritten in OpenCV 3.0.0.

[qgeissmann]

thanks for pointing that out, I will have to have a look when I come back from vacation (~15days).

[vjancik]

Is there any progress on this issue?

[qgeissmann]

I am going to fix this by the end of next week

[vjancik]

Hi, is the fix still segfaulting? Thanks.

[vjancik]

Hi, is this bug resolved by any chance?

[qgeissmann]

Hey, sorry, have bee v busy before Xmas. Will try to have a look soon ;)

[pkajaba]

Hello, Do you have any progress on this?

[jmlich]

Hi, by the way, Pavel Kajaba, Viktor Jancik and me are interested for same reason. I am former employee of Red Hat and I was looking how to update opencv package in fedora.

[pkajaba]

Hi, ping? :)

[qgeissmann]

Thanks for reminding me.
So we now support opencv3. There may be some issues with Gtk3 vs Gtk2 from the fact OpenCV3 uses Gtk3 symbol as part of highgui.
Let me know.

[anou85]

Hi @qgeissmann ,

I'm getting the same issue with OpenCV version 3.4.1 and the latest OpenCFU. Any recommendations?

In file included from src/processor/headers/Processor.hpp:9:0,
from src/main.cpp:23:
src/processor/headers/Predictor.hpp:23:9: error: ‘CvRTrees’ does not name a type
CvRTrees m_trees;
^
src/processor/headers/Predictor.hpp:24:9: error: ‘CvRTParams’ does not name a type
CvRTParams m_rt_params;

Cheers

[rexlogic]

Hi @qgeissmann ,

I'm getting the same issue with OpenCV version 3.4.1 and the latest OpenCFU. Any recommendations?

In file included from src/processor/headers/Processor.hpp:9:0,
from src/main.cpp:23:
src/processor/headers/Predictor.hpp:23:9: error: ‘CvRTrees’ does not name a type
CvRTrees m_trees;
^
src/processor/headers/Predictor.hpp:24:9: error: ‘CvRTParams’ does not name a type
CvRTParams m_rt_params;

Cheers

The OpenCFU source code (filename 'opencfu-3.9.0.tar.gz') available on Sourceforge is only compatible with OpenCV 2.4, and was not migrated to OpenCV 3.

Use the OpenCFU source code available on this git, with OpenCV > 3. It compiles (with only a few warnings) even under the Ubuntu 1804 WSL with OpenCV 4.0.1 (only install Xming as X Server for Windows to run its GUI).

[qgeissmann]

Hi @rexlogic,
Thanks, so if I understand well, the github source code compiles and we just need to update/redirect the code on sourceforge?

[rexlogic]

Hi @rexlogic,
Thanks, so if I understand well, the github source code compiles and we just need to update/redirect the code on sourceforge?

Hi @qgeissmann,

Yes, a linux archive with the new code on Sourceforge should create less confusion. And an attached note like "compile using OpenCV 3+" would be even better.
Also suggesting it is not a minor update, - migration to the new OpenCV namespaces changes alot of code; less the GUI - and the OpenCFU versioning can climb to 4.0.