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you cannot predict on a slice of an image, a slice does not have 'continuous data', so you need something like :

    cropped = predict_image[y: y + 130, x: x + 130].copy()

then, due to a current bug, you cannot get confidence and label at the same time, only the label:

    nbr_predicted = recognizer.predict(cropped)

(one way to get the confidence back, would be , to remove the CV_WRAP here and rerun cmake && make && make install)

you EigenFaces cannot predict on a slice of an image, a slice does not have 'continuous data', so you need something like :

    cropped = predict_image[y: y + 130, x: x + 130].copy()

then, due to a current bug, you cannot get confidence and label at the same time, only the label:

    nbr_predicted = recognizer.predict(cropped)

(one way to get the confidence back, would be , to remove the CV_WRAP here and rerun cmake && make && make install)