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\

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