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Where did SIFT and SURF go in OpenCV 3?

If you’ve had a chance to play around with OpenCV 3 (and do a lot of work with keypoint detectors and feature descriptors) you may have noticed that the SIFT and SURF implementations are no longer included in the OpenCV 3 library by default. Unfortunately, you probably learned this lesson the hard way by opening up a terminal, […]

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Creating a face detection API with Python and OpenCV (in just 5 minutes)

So you’ve just built your first awesome computer vision app. Maybe it can detect faces in images. Or maybe your app can recognize prescription pills in photos. Or maybe your computer vision app can identify the covers of top selling books, all while displaying the latest reader reviews and the cheapest websites online to purchase them. So the big […]

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