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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"
function command_iteration(method)
print(method)
pos = method:GetOptimizedPosition()
print( string.format("%3d = %f : (%f, %f)", method:GetOptimizerIteration(),
method:GetMetricValue(), pos[1], pos[2] ) )
end
if #arg < 3 then
print( string.format("Usage: %s <fixedImageFilter> <movingImageFile> <outputTransformFile>", arg[0]) )
os.exit ( 1 )
end
fixed = SimpleITK.ReadImage( arg[1], SimpleITK.sitkFloat32 )
moving = SimpleITK.ReadImage( arg[2], SimpleITK.sitkFloat32 )
R = SimpleITK.ImageRegistrationMethod()
R:SetMetricAsMeanSquares()
R:SetOptimizerAsRegularStepGradientDescent( 4.0, .01, 200 )
R:SetInitialTransform( SimpleITK.Transform( fixed:GetDimension(), SimpleITK.sitkTranslation ) )
R:SetInterpolator( SimpleITK.sitkLinear )
-- callback for progress reporting doesn't work yet in Lua
-- R:AddCommand( SimpleITK.sitkIterationEvent, command_iteration(R) )
outTx = R:Execute(fixed, moving)
print("-------")
print(outTx)
print(string.format("Optimizer stop condition: %s", R:GetOptimizerStopConditionDescription()) )
print(" Iteration: ", R:GetOptimizerIteration() )
print(" Metric value: ", R:GetMetricValue() )
SimpleITK.WriteTransform(outTx, arg[3])
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