Hello, i am have recently started working on face recognition using opencv c++. i am facing problem while recognizing unknown faces. Code works fine on known face but when i give unknown face it is giving true label when it false. Method which i am following is - 1. Taking the face images i.e, cropping it with using "detectMultiScale" for training using webcam. 2. Then training the dataset with 20 images of different expressions using EIgen. (tried with fisher & LBPH also.) 3. for recognition converting images to gray scale using everything according to opencv then Aligning images, Equalizing Histogram, detecting face using cascade classifier after that recognition using predict model.
Everything working fine on my face. but problem occurs while i am testing it on faces other than trained faces. It is showing my label to unknown face.
any lead will be welcome. Thanks in advance.