Merge pull request #3168 from silx-kit/speedup_get_next_power

Speed up image.tomography.get_next_power()
silx-kit · Jul 28, 2020 · 221eb8a · 221eb8a
2 parents f1bcf32 + 0f09540
commit 221eb8a
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/silx/image/tomography.py b/silx/image/tomography.py
@@ -32,6 +32,7 @@
 
 import numpy as np
 from math import pi
+from functools import lru_cache
 from itertools import product
 from bisect import bisect
 from silx.math.fit import leastsq
@@ -128,6 +129,7 @@ def compute_fourier_filter(dwidth_padded, filter_name, cutoff=1.):
     return filt_f
 
 
+@lru_cache(maxsize=1)
 def generate_powers():
     """
     Generate a list of powers of [2, 3, 5, 7],