1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/*=========================================================================
*
* 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.
*
*=========================================================================*/
#ifndef itkBoxSigmaImageFilter_hxx
#define itkBoxSigmaImageFilter_hxx
#include "itkBoxSigmaImageFilter.h"
#include "itkProgressAccumulator.h"
#include "itkNumericTraits.h"
#include "itkBoxUtilities.h"
/*
*
* This code was contributed in the Insight Journal paper:
* "Efficient implementation of kernel filtering"
* by Beare R., Lehmann G
* https://hdl.handle.net/1926/555
* http://www.insight-journal.org/browse/publication/160
*
*/
namespace itk
{
template< typename TInputImage, typename TOutputImage >
BoxSigmaImageFilter< TInputImage, TOutputImage >
::BoxSigmaImageFilter()
{}
template< typename TInputImage, typename TOutputImage >
void
BoxSigmaImageFilter< TInputImage, TOutputImage >
::ThreadedGenerateData(const OutputImageRegionType & outputRegionForThread, ThreadIdType threadId)
{
// Accumulate type is too small
typedef typename itk::NumericTraits< PixelType >::RealType AccValueType;
typedef typename itk::Vector< AccValueType, 2 > AccPixType;
typedef typename itk::Image< AccPixType, TInputImage::ImageDimension > AccumImageType;
typename TInputImage::SizeType internalRadius;
for ( unsigned int i = 0; i < TInputImage::ImageDimension; i++ )
{
internalRadius[i] = this->GetRadius()[i] + 1;
}
const InputImageType *inputImage = this->GetInput();
OutputImageType * outputImage = this->GetOutput();
RegionType accumRegion = outputRegionForThread;
accumRegion.PadByRadius(internalRadius);
accumRegion.Crop( inputImage->GetRequestedRegion() );
ProgressReporter progress( this, threadId, 2 * accumRegion.GetNumberOfPixels() );
typename AccumImageType::Pointer accImage = AccumImageType::New();
accImage->SetRegions(accumRegion);
accImage->Allocate();
BoxSquareAccumulateFunction< TInputImage, AccumImageType >(inputImage, accImage,
accumRegion,
accumRegion,
progress);
BoxSigmaCalculatorFunction< AccumImageType, TOutputImage >(accImage, outputImage,
accumRegion,
outputRegionForThread,
this->GetRadius(),
progress);
}
} // end namespace itk
#endif
|
