Face Verification Using Local Binary Patterns (LBP)

C++ Based Face Verification Using OpenCV and LBP

This is a project that performs face verification based on OpenCV. Few information before you use:

1. The facial image features are extracted based on Local Binary Patterns (LBP). The program first performs facial region detection on the input image, then eye detection (both eyes), and perform eye-alignment. Then performs feature extraction using LBP, and send the obtained feacture vector into classifier.

2. The classification is performed using Support Vector Machines (SVM).

3. You need to provide relevant negative images for training SVM. Currently, the negative image count is set as 300, you can change it in the code according to your own case. You need to provide negative image list txt file. Please refer to negativeImageList member in the faceverifier.cpp file for more information. For generating negative image list, you can copy your negative images to the folder Release/Negative_Images/, then double click getFileList.bat, it will generate a txt file containing your negative image list. Provide this txt file as your negativeImageList in faceverifier.cpp.

4. You need to provide relevant positive images for training SVM. Currently, the positive images are those captured from the embedded camera from the host computer, and minimum positive sample size (image count) is set as 200. You can change the source of your positive images (such as from your disk folder instead of capturing live from camera), as well as sample size in the code.

5. Of course, you need OpenCV for this code, so be sure that you have installed OpenCV on your computer, and provide necessary path to your solution.

6. The final result is a prediction score between 0.0 and 1.0, in which 1 means the test image is totally the same as the positive training image, while 0 means exactly the reverse.

7. In the relevant header file, you may see codes for DLL EXPORT. This is for ease to let you embed your code into a dll file if necessary. Note that you need to uncommnet those lines such as System::String^ in order to make a dll file, since std::string is not acceptable in such cases. You may do a search on the internet to better understand how to build dll files from source code as well.

Best wishes,

Ekberjan