OpenCV (Open Source Computer Vision Library) is an open-source computer vision and machine learning software library. This library mainly aims at real-time computer vision. In other words, we can say it is a library used for Image Processing.

It is mainly used to do all the operations related to Images like to analyze the data from the Camera of an Embedded system or your computer or anything that captures images (e.g. From a LIDAR).

It is written in C++ and supported by various programming languages such as C++, Java, Python. Some applications of OpenCV includes read and write Images, detection of faces and its features, text recognition in images, developing augmented reality apps.

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Face Detection from an Image using OpenCV & Python | i2tutorials
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