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  /external/opencv3/samples/python2/
dft.py 89 log_spectrum = cv2.log(1.0 + magnitude) variable
93 shift_dft(log_spectrum, log_spectrum)
96 cv2.normalize(log_spectrum, log_spectrum, 0.0, 1.0, cv2.NORM_MINMAX)
97 cv2.imshow("magnitude", log_spectrum)

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