Object detection is an application of computer vision and image processing that deals with detecting instances of semantic objects of a certain class in digital images and videos. Well-researched domains of object detection include face detection and pedestrian detection. Object detection has applications in many areas of computer vision, including image retrieval and video surveillance. There are three tasks in this process - image classification, to predict the type or class or an object in an image, object localization to locate the presence of objects in an image and indicate their location, and object detection to locate the presence of objects and types or classes of the located objects in an image.
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