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-rw-r--r--Wrappers/Python/ccpi/astra/operators/AstraProjectorMC.py3
1 files changed, 1 insertions, 2 deletions
diff --git a/Wrappers/Python/ccpi/astra/operators/AstraProjectorMC.py b/Wrappers/Python/ccpi/astra/operators/AstraProjectorMC.py
index f796a63..514ffce 100644
--- a/Wrappers/Python/ccpi/astra/operators/AstraProjectorMC.py
+++ b/Wrappers/Python/ccpi/astra/operators/AstraProjectorMC.py
@@ -17,7 +17,6 @@
from ccpi.optimisation.operators import Operator, LinearOperator
from ccpi.framework import AcquisitionData, ImageData, DataContainer
-from ccpi.optimisation.ops import PowerMethodNonsquare
from ccpi.astra.processors import AstraForwardProjector, AstraBackProjector, \
AstraForwardProjectorMC, AstraBackProjectorMC, AstraForwardProjector3D, \
AstraBackProjector3D
@@ -68,5 +67,5 @@ class AstraProjectorMC(LinearOperator):
def norm(self):
x0 = self.volume_geometry.allocate('random')
- self.s1, sall, svec = PowerMethodNonsquare(self, 50, x0)
+ self.s1, sall, svec = LinearOperator.PowerMethodNonsquare(self, 50, x0)
return self.s1 \ No newline at end of file