1 /*=========================================================================
2 *
3 * Copyright Insight Software Consortium
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0.txt
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 *=========================================================================*/
18 #ifndef itkBackwardDifferenceOperator_hxx
19 #define itkBackwardDifferenceOperator_hxx
20
21 #include "itkBackwardDifferenceOperator.h"
22
23 namespace itk
24 {
25 template< typename TPixel, unsigned int TDimension, typename TAllocator >
26 typename BackwardDifferenceOperator< TPixel, TDimension, TAllocator >
27 ::CoefficientVector
28 BackwardDifferenceOperator< TPixel, TDimension, TAllocator >
GenerateCoefficients()29 ::GenerateCoefficients()
30 {
31 CoefficientVector coeff(3);
32
33 coeff[0] = -1.0f * NumericTraits< PixelType >::OneValue();
34 coeff[1] = NumericTraits< PixelType >::OneValue();
35 coeff[2] = NumericTraits< PixelType >::ZeroValue();
36
37 return coeff;
38 }
39 } // namespace itk
40
41 #endif
42