OpenCV DNN Speed Test in Python / C# / C++

This is a simple test using OpenCv DNN module load SSD model running in different language, compare their running speed.

Test environment

Python

• Python 3.6.3
• OpenCv 3.3.0.10 (opencv-python)

C#

• .NET Framework 4.7
• EmguCV 3.3.0.2824
• OpenCvSharp 3.3.1.20171117 🆕

C++

• VC14
• OpenCv 3.3.1

System

• Windows 10 Pro 64bit

Hardware

• Intel Core i7-7820HQ @ 2.90GHz
  GPU didn't list because OpenCV DNN module can't enable GPU right now

Model

• SSD / PASCAL VOC models : 07++12+COCO: SSD512 from here

Result

RunTime

• Python with OpenCV: 1510 ms
• C# with OpenCvSharp: 1917 ms 🆕
• C# with EmguCV: 4041 ms
• C++ with OpenCV: 9306 ms

Source Code

• Python : OpenCvSSD.py
• C++ : OpenCvSsdCplus.cpp
• C# EmguCV : emguCvSsd.cs
• C# OpenCvSharp : OpenCvSharpDnn\

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More detail please check blog article: OpenCV DNN speed compare in Python, C#, C++.
2017/12/15 add OpenCvSharp Dnn Test.

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