Opencvsharp (C openCV) shape detection and recognition (with source code)

Click below card , Focus on “OpenCV And AI Deep learning ” official account ！

Vision / Image heavy dry goods , First time delivery ！

Preface

Example source and background , Please check the following article ：

be based on OpenCV Image shape detection ( Including source code )_Color Space The blog of -CSDN Blog Guide this article to share a useful OpenCV A small case of shape detection using traditional methods . Background introduction example source ：https://github.com/akshaybhatia10/ComputerVision-Projects/tree/master/FindShapes The typical test pictures are as follows ： The figure above contains a rectangle 、 Square 、 triangle 、 A circle and a Pentagon are in common 5 Species shape , Our goal is to locate it and mark the corresponding shape , The effect is as follows ： Implementation steps 【1】 Convert the picture to grayscale , Do binarization . The original drawing is relatively simple , You can use a fixed threshold or OTSU Threshold method ;.https://colorspace.blog.csdn.net/article/details/122869394 This article will introduce its corresponding C# OpenCV Realization --- be based on OpenCvSharp4.5.5.20211231.

The test image