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So I want to train a Open-CV cascade classifier to detect frontal-faces though i want to do it in IR modal. Is there a way I could use the opencv provided xml file for frontal faces from here and train it on my new images to improive the classifier. So my question is can I reuse the cascade classifier (in XML file) to train over new set of images in Python?

Kathan Vyas
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  • with the opencv tools you would at least need the `stages folders` of the original classifier. Not sure whether changin the training samples is possible. – Micka Apr 29 '20 at 07:50
  • The .xml you have is the result of a previous training process. You need to perform your own according to the steps in https://docs.opencv.org/3.4/dc/d88/tutorial_traincascade.html. You can find a very useful step by step here: https://medium.com/@dikshitkathuria1803/training-your-own-cascade-classifier-detector-opencv-9ea6055242c2 – Maf Jan 21 '21 at 10:00

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