Need GTK support opencv ; problem which imshow()

[connect2robiul]

When I try to install, I get this

`UnsatisfiableError: The following specifications were found to be in conflict:

• opencv -> numpy 1.7* -> python 2.6* -> openssl 1.0.1*
• python 3.6*
  Use "conda info " to see the dependencies for each package.`

the spcific error is

install libgtk2.0-dev and pkg-config, then re-run cmake or configure script) in cvShowImage

[patricksnape]

Those two errors seems to be unrelated?

[oxydron]

Yeah, seems to be 2 problems:

1. The biggest opencv problem of all times: the "gtk 2.x or carbon error" when trying to use cv2.imshow()
2. Conflicted packages.

I'm trying to solve the first problem for 2 weeks now...

[patricksnape]

We don't support installing gtk2 from this package (at the moment). But I will take a look whenever I finally get opencv 3.2.0 building

[patricksnape]

@jakirkham do we have any other packages that link against GTK?

[connect2robiul]

How to fixed this? Any idea @patricksnape

[jakirkham]

do we have any other packages that link against GTK?

Maybe Qt. Even if we were using GTK, I think it would be coming from the system. I don't believe there is a GTK package in defaults (haven't checked though). A quick search in the org seems to suggest most things are not using GTK instead of using it.

[oxydron]

@jakirkham Ok, using Qt, could you point some directions? Any conda install command? Any pip or apt-get install? Any tip?

[jakirkham]

Sorry @oxydron. That was in response to @patricksnape.

[patricksnape]

So if we have no existing GTK packages then this won't get built with GTK until we do

[jakirkham]

@patricksnape is absolutely correct. AFAIAC there is nothing actionable for us here without a GTK package. So am going to close that out. That said, if the community adds a GTK package, we can reopen and discuss building it here.

[jakirkham]

Opened issue ( conda-forge/staged-recipes#3914 ) to track adding GTK to conda-forge. Once that is addressed, we can revisit building OpenCV with GTK support.

[salmedina]

Any update on this problem?

[jakirkham]

The package got rebuilt with qt support a long time ago. Would recommend opening a new issue with more details if you are running into problems. Thanks.