Support OpenCV 3.2?

[DeadNumbers]

No description provided.

[lazywei]

I would definitely like to have this. However, it seems OpenCV3.2 only has C++ API, which makes it difficult to build a wrapper in Go (through Cgo). I once tried to use SWIG to build automatically wrapper for OpenCV 3.x API at gocv/, but I feel like it is too tedious and dirty to do so.... Any suggestion would be appreciated!

[DeadNumbers]

Maybe this https://medium.com/@peterleyssens/using-opencv-3-from-golang-5510c312a3c help?

[juliandroid]

What OpenCV are doing for Java binding?

I left with impression is they are running python generator:
https://github.com/opencv/opencv/blob/05b15943d6a42c99e5f921b7dbaa8323f3c042c6/modules/java/generator/gen_java.py

Is it possible this script to be reused to create go wrapper?

[RichLewis007]

Duplicate issue. And it seems that Matt started to work on this issue:
https://github.com/mlehner/go-opencv/commit/6e6733402a9e71b47c31929089f9892f005e13ec

[denismakogon]

Hi, what's current status for supporting OpenCV 3.X? Would be nice to see this soon enough.
@lazywei @mlehner @RichLewis007

[deadprogram]

The python script for generating wrappers is a bit simpler than the Java one:
https://github.com/opencv/opencv/blob/05b15943d6a42c99e5f921b7dbaa8323f3c042c6/modules/python/src2/gen2.py

The high-level process, according to comments in that code is:

• step 1: scan the headers and build more descriptive maps of classes, consts, functions
• step 1.5 check if all base classes exist
• step 2: generate code for the classes and their methods
• step 3: generate the code for all the global functions
• step 4: generate the code for constants
• That's it. Now save all the files

It certainly would be a lot of work, but less work than trying to manually maintain the wrappers each time there is a change to OpenCV. Any convenience functions or other Go specific sugar could be added to the script or to supplemental files.

Anyone interested in this?

[deadprogram]

Hello, everyone.

Just wanted to let you all know about my new project GoCV: http://gocv.io/

Inspired by the work done in this project, I am hopeful that with a fresh start and different approach, much more progress can be made on OpenCV 3+.

I'd love to collaborate with all of you!