From 39cd60f961ee20fd3b440df41ebbb9126d6cea9d Mon Sep 17 00:00:00 2001
From: Eric Wait <eric@waitphoto.com>
Date: Tue, 8 Aug 2017 15:34:03 -0400
Subject: [PATCH] The median filter shouldn't move memory to the card if there
is nothing to do.
---
src/c/Cuda/CudaMedianFilter.cuh | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/c/Cuda/CudaMedianFilter.cuh b/src/c/Cuda/CudaMedianFilter.cuh
index 13d4baf5..9aaf74da 100644
--- a/src/c/Cuda/CudaMedianFilter.cuh
+++ b/src/c/Cuda/CudaMedianFilter.cuh
@@ -116,6 +116,12 @@ PixelType* cMedianFilter(const PixelType* imageIn, Vec<size_t> dims, Vec<size_t>
neighborhood = neighborhood.clamp(Vec<size_t>(1,1,1),dims);
+ if (neighborhood == Vec<size_t>(1, 1, 1))
+ {
+ memcpy(imOut, imageIn, sizeof(PixelType)*dims.product());
+ return imOut;
+ }
+
cudaDeviceProp props;
cudaGetDeviceProperties(&props,device);
--
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