How do I perform better image recognition using emgu cv in C# ?

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Emgu-CV

C#6.0

Hi everyone
I am doing image processing using Emgu CV in c#.I tried eigen face recognizer as well as LBPH,but both are not recognizing faces correctly.How i can do this ?
I train data but still it does not accurately identity faces and give wrong result..

What I have tried:

I have tried Eigen face recognizer,and LBPH as well but in both cases could not find better image recognition results. .