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--=========================================================================
--
-- Copyright Insight Software Consortium
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
-- http://www.apache.org/licenses/LICENSE-2.0.txt
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
--
--=========================================================================
require "SimpleITK"
if #arg < 3 then
print ( "Usage: SimpleGaussian <input> <sigma> <output>" )
os.exit ( 1 )
end
reader = SimpleITK.ImageFileReader()
-- Remember that Lua arrays are 1-based, and that arg does not contain the application name!
reader:SetFileName ( arg[1] )
image = reader:Execute();
inputPixelType = image:GetPixelID()
gaussian = SimpleITK.SmoothingRecursiveGaussianImageFilter()
gaussian:SetSigma ( arg[2] )
image = gaussian:Execute ( image );
caster = SimpleITK.CastImageFilter();
caster:SetOutputPixelType( inputPixelType );
image = caster:Execute( image )
writer = SimpleITK.ImageFileWriter()
writer:SetFileName ( arg[3] )
writer:Execute ( image );
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