CODEWITHSUNDEEP
androidopencvimage-processingandroid-ndkvuforia
koraxis
koraxis

Reputation: 811

Calling OpenCV methods from vuforia

I am trying to do image processing on images that i get from camera frames with Vuforia QCAR. And for that i want to use OpenCV.

I want to send the pixels as byte arrays to openCv from Vuforia. But i dont know how to do it. I know how to reach java methods from native part or vice versa, but i couldnt find a starting point about how to call a native function from another library.

One more question, can i just invoke the OpenCV methods in native(c++) part of Vuforia? So that i dont have to just send the bytes to another class?

I am a bit confused

Thanks

Upvotes: 2

Views: 1748

Answers (1)

mathieujofis
mathieujofis

Reputation: 349

Yes, you can work with OpenCV strictly in native code along with Vuforia. It's not totally clear if what you're trying to do is in real-time or not, however, it'll be more efficient if you do the computer vision stuff in C/C++.

Here's an example of how you could create an OpenCV Mat using a QCAR::Image. 

Mat grayImage = Mat(QCARImage->getHeight(), QCARImage->getWidth(), CV_8UC1, (unsigned char *)QCARImage->getPixels());

Once you instantiate the Mat with a pointer to the QCAR image data, you can go about doing image processing and computer vision as you normally would with OpenCV.

Upvotes: 2

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