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create' : is not a member of 'cv::Algorithm'

asked 2015-06-06 07:36:13 -0500

stillNovice gravatar image

Hi all, I am having a problem with the cv::Algorithm.create line.

This line of code:

Ptr<Feature2D> surf = Algorithm::create<Feature2D>("Feature2D.SURF");

gives me the following error:

Error   7 error C2039: 'create' : is not a member of 'cv::Algorithm'

Please help! this is driving me insane. Windows 8, visual studio 2013, opencv 3.0

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to be more specific, this is code from MRPT examples.

stillNovice gravatar imagestillNovice ( 2015-06-06 07:42:54 -0500 )edit

I have added initModule_nonfree() as explained in the docs, but to no effect.

stillNovice gravatar imagestillNovice ( 2015-06-06 07:45:37 -0500 )edit

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answered 2015-06-06 09:53:33 -0500

Eduardo gravatar image

updated 2015-06-06 09:57:27 -0500

It is normal as you use OpenCV 3.0.0. This way of use has been removed.

Instead, you can use:

cv::Ptr<cv::Feature2D> surf = cv::xfeatures2d::SURF::create();

You will need also the contrib module to have access to SURF keypoints.

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thank you! Much appreciated.

stillNovice gravatar imagestillNovice ( 2015-06-07 12:15:39 -0500 )edit
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Asked: 2015-06-06 07:36:13 -0500

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Last updated: Jun 06 '15