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我一直试图以施加一水平抽样小波使用函数swtn从封装pywavelets变换为3D numpy的排列在Python如下:一水平抽样小波在3D numpy的阵列误差变换
import numpy as np
from pywavelts import swtn
img = np.random.rand(4,4,5)
WT = swtn(img, 'coif1', level = 1, start_level = 0)
它发源于一个错误:
Traceback (most recent call last):
File "<ipython-input-60-1f6f4144a239>", line 1, in <module>
pywt.swtn(img, 'coif1', level=1, start_level =0, axes=None)
File "/usr/local/lib/python2.7/dist-packages/pywt/_swt.py", line 387, in swtn
axis=axis)[0]
File "pywt/_extensions/_swt.pyx", line 100, in pywt._extensions._swt.swt_axis (pywt/_extensions/_swt.c:6203)
File "pywt/_extensions/_swt.pyx", line 116, in pywt._extensions._swt.swt_axis (pywt/_extensions/_swt.c:5035)
ValueError: start_level must be less than 0.
然而,这并没有任何意义,我自启动电平值小于0不是由小波分解允许的。有人能看一看,并指出我失踪的是什么吗?