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| 2013-04-25 06:09:14 -0600 | commented answer | confidence of predict model (face recognizer) > 1 Hi, Thanks for your response, This reinforces my idea about images context (lighting, head size). But, what kind of distance measurment does createEigenFaceRecognizer calculate ? How to imporve it ? By taking images in same distance (between me and camera) by example ? My database of images have same sizes. But for my new image, I am not sure. Is it important to adjust this mage ? |
| 2013-04-25 04:12:12 -0600 | asked a question | confidence of predict model (face recognizer) > 1 Hi, I am working on face Recognition (C++ code) in Android app. In first, I use first findfaces() method to detect, resize each image of my person. It works well. Then I want to recognize my face (via createEigenFaceRecognizer), I refer to sample images previously created, the image's path and the haarcascade_frontalface_alt.xml.The model is filled. I train the model. But as soon as model->predict(face_resized,prediction,predicted_confidence); is called, it returne me a confidence > 1. It is often between 1600 and 10000 depending on person. I do not understand why. Yet, I have constructed my algorithm according to tutorial on openCV. Can you help me ? I can give you my code. Thanks in advance. |