Interview Questions and Answers

OpenCV stands for Open Source Computer Vision Library is an open-source library using which is used to develop real-time computer vision applications such as image processing, video capture, and analysis, for example, face detection and object detection.

Some of the applications of OpenCV are object detection, face recognition, medical diagnosis, etc.

There are two types of image filters available in OpenCV:Linear filterNon-linear filter

In the OpenCV line() function is used to draw the line.

Resolution is defined as the smallest number of discernible detail in an image.Spatial resolution is the smallest discernible detail in an image and gray level resolution refers to the smallest discernible change is gray level.

A digital image is composed of a finite number of elements each of which has a particular location or value. These elements are referred to as pixels or image elements or picture elements or pixls elements.