Top 50+ Computer vision and opencv interview questions and answers

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What is computer vision ?

It’s Subset of AI. Computer vision is an interdisciplinary scientific field that deals with how computers can be made to gain high-level understanding from images or videos

What are languages supported by Computer vision ?

C++, Python, Matlab,

What are computer vision libraries ?

OpenCV – python, Java

How many algorithms in opencv ?

2500 optimized algorithms

What is CUDA ?

What is OpenGL ?

What are machine learning algorithms available in opencv ?

Normal Bayes Classifier

K-Nearest Neighbors

Support Vector Machines

Decision Trees


Gradient Boosted Trees

Random Trees

Extremely randomized trees

What is Images stitching?  How can you do with opencv ?

What is Computational Photography ? How can you do with opencv ?

How you can you connect your webcam to opencv ?

How can you do objection detection in opencv ?

What are face recognition algorithms ?

Haar Cascades, Eigenfaces, Fisherfaces

How  Haar Cascades algorithm works  ?

How can you do face detection in opencv ?

How can you detect eye in Open CV ?

What is Cascade Classifier in Open CV ?

How can you detect corner of images using OpenCV ?

How many types of image filters in OpenCV ?

  • Averaging
  • Gaussian Filtering
  • Median Filtering
  • Bilateral Filtering

How can you do Feature Detection in Open CV ?

How many types of video filters in OpenCV ?

  • Color Conversion
  • Thresholding
  • Smoothing
  • Morphology
  • Gradients
  • Canny Edge Detection
  • Contours
  • Histograms

How can do Image processing in opencv ?

How can you do image compression in opencv ?

How can you do image resize in opencv  ?

How can you convert black and white image to color image using computer vision ?

What is video analysis  in Opencv ?

How can you do detect objections video ?

how you would create a 3D model of an object ?

How can you remove red eye from photos using in opencv ?

How can you connect GPU with opencv ?

How can you integrate open cv with android ?

How can you integrate open cv with ios?


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