From d12f8106195a44e2cc9a22354c18c2827e3be100 Mon Sep 17 00:00:00 2001
From: Nicola Vigano <nicola.vigano@esrf.fr>
Date: Wed, 21 Jan 2015 15:35:11 +0100
Subject: [PATCH] Added forgotten Upsampling function
Signed-off-by: Nicola Vigano <nicola.vigano@esrf.fr>
---
zUtil_Maths/gtMathsUpsampleVolume.m | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
create mode 100644 zUtil_Maths/gtMathsUpsampleVolume.m
diff --git a/zUtil_Maths/gtMathsUpsampleVolume.m b/zUtil_Maths/gtMathsUpsampleVolume.m
new file mode 100644
index 00000000..25abeeae
--- /dev/null
+++ b/zUtil_Maths/gtMathsUpsampleVolume.m
@@ -0,0 +1,21 @@
+function vol = gtMathsUpsampleVolume(vol, scale)
+% FUNCTION vol = gtMathsUpsampleVolume(vol, scale)
+
+ if (iscell(vol))
+ for ii = 1:numel(vol)
+ vol{ii} = gtMathsUpsampleVolume(vol{ii}, scale);
+ end
+ else
+ vol = upsample(vol, scale);
+ end
+end
+
+function vol = upsample(vol, scale)
+ vol_in_size = size(vol);
+ for ii_dim = numel(vol_in_size):-1:1
+ indx{ii_dim} = 1:vol_in_size(ii_dim);
+ indx{ii_dim} = indx{ii_dim}(ones(scale, 1), :);
+ indx{ii_dim} = reshape(indx{ii_dim}, [], 1);
+ end
+ vol = vol(indx{:});
+end
--
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