OpenCV with other GUI (like Qt or WxWidgets) on Win32 VC++

Question

I want to use OpenCV\'s image processing functions, but not the OpenCV GUI. I\'m using OpenCV 2.0. I will use either Qt4 or WxWidgets for GUI functions. I compile with VC

Answer 1

I know I'm super late to this discussion, but I just happened across it. Anyways, I've been using OpenCV and wxWidgets together quite happily for a few years now, so I thought I'd pitch in:

Is it necessary to do something to disable OpenCV's higui so it does not interfere with the preferred GUI library, and if so, how?

Not generally. There are a couple hiccups that you can run into for specific versions of OpenCV and Windows. For the most part, though, the integration is very smooth. I routinely use wx for my front end and the parts of highgui that enable image capture. I've done this on several versions of Windows, Ubuntu, and OS X.

How to convert an OpenCV image into something (bitmap?) that the preferred GUI can display (and perhaps save)?

An alternative to copying back and forth between a wxImage is stuffing the IplImage's data directly into an OpenGL texture and painting it on a wxGLCanvas. One big advantage for this strategy is that you can then draw on top of the texture using standard OpenGL methods.

(Optional) How to convert an image that was loaded using the preferred interface into a form that OpenCV can use?

Don't :) I use wxFileDialog etc to let the user specify paths, but all of the backend is directly OpenCV.

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Code I've written to do a lot of this is part of a project called MADTraC, which is a GUI/application framework for real-time computer vision applications.

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