OpenCV Interview Questions and Answers
Freshers / Beginner level questions & answers
Ques 1. what is OpenCV?
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.
Ques 2. List some sample applications of OpenCV?
Some of the applications of OpenCV are object detection, face recognition, medical diagnosis, etc.
Ques 3. How many types of image filters are available in OpenCV?
There are two types of image filters available in OpenCV:Linear filterNon-linear filter
Ques 4. In OpenCV which function is used to draw a line?
In the OpenCV line() function is used to draw the line.
Ques 5. Define Resolutions.
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.
Ques 6. What Is Meant By Pixel?
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.
Most helpful rated by users:
- what is OpenCV?
- Which method of OpenCV is used to read image?
- In OpenCV which function is used to draw a line?
- List some sample applications of OpenCV?
- How many types of image filters are available in OpenCV?
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