How to extract road signs based on the shapes?

I want to extract the road signs which are circular , triangle or rectangular and crop that detected part and save it.

Answer 1

[Abhisek Pradhan]

regionprops can be used to measure properties of image regions. Here are two links which has sample code and explanations for similar questions.

https://in.mathworks.com/matlabcentral/answers/110855-how-to-detect-the-shape-in-matlab https://in.mathworks.com/matlabcentral/answers/34173-detect-shape-in-image

[renit anthony]

Have seen this before but it wasn't accurately predicting.