基本上,以下是诀窍:
import numpy as np
from scipy.fftpack import dct, idct
# Lets create a 3D array and fill it with some values
a = numpy.random.rand(3,3,3)
f,x,y = a.shape
b = np.zeros((f,x,y))
b = dct(dct(dct(a).transpose(0,2,1)).transpose(1,2,0)).transpose(1,2,0).transpose(0,2,1)
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