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Fix callable test in LPI filter

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This commit is contained in:
Johannes Schönberger
2012-10-13 23:28:29 -07:00
committed by Stefan van der Walt
parent 91b5c287e1
commit 0387e4a8b6
1 changed files with 1 additions and 1 deletions
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skimage/filter/lpi_filter.py
+1 -1
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@@ -75,7 +75,7 @@ class LPIFilter2D(object):
>>> filter = LPIFilter2D(filt_func)
"""
if impulse_response is None:
if not callable(impulse_response):
raise ValueError("Impulse response must be a callable.")
self.impulse_response = impulse_response