Looks like the dnn module is shipped in OpenCV3 but current dependency is 
defined as >= 2.3.0. We could update the version to be > 3.0. Any idea why 
debian does not include the dnn module in the opencv package?My archlinux 
install does have it as part of the standard opencv 
install.https://www.archlinux.org/packages/extra/x86_64/opencv/    On Tuesday, 
21 August, 2018, 6:38:48 PM IST, Norbert Preining <prein...@logic.at> wrote:  
 Hi Narendra,

> OpenCV uses the folder opencv2 to include the object oriented
> definitions even in the version 3.0 . Apparently the dnn.hpp should be
> in the package libopencv-contrib
> (https://packages.debian.org/buster/libopencv-contrib3.2) , but I'm
> using right now Ubuntu 16.04 and it doesn't ship the dnn.hpp file.

Indeed, also Debian does not ship it. One can check here for existence
of this file in Debian/unstable:

> The only advice I could give is, if you are going to compile OpenCV
> from https://github.com/opencv/opencv after clone the repository

Umpf, that is not something I am going to do. It seems the dnn module is
not compiled for Debian or Ubuntu.

This is a pain.

Thanks for checking.


PREINING Norbert                              http://www.preining.info
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