Howtosignalprocessing
How do I extract features from an image using SIFT?
SIFT feature extraction method consists of four main steps, ❖ Scale extreme detection ❖ Removal of unreliable key points ❖ Orientation assignment and ❖ Key point descriptor calculation. From the set of reference images SIFT key points of objects are extracted and are stored in the data base.
Can I use OpenCV for machine learning?
OpenCV is the huge open-source library for the computer vision, machine learning, and image processing and now it plays a major role in real-time operation which is very important in today's systems. By using it, one can process images and videos to identify objects, faces, or even handwriting of a human.
