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 itkGreyColormapFunction_hxx 19 #define itkGreyColormapFunction_hxx 20 21 #include "itkGreyColormapFunction.h" 22 23 namespace itk 24 { 25 namespace Function 26 { 27 template< typename TScalar, typename TRGBPixel > 28 typename GreyColormapFunction< TScalar, TRGBPixel >::RGBPixelType 29 GreyColormapFunction< TScalar, TRGBPixel > operator ()(const TScalar & v) const30::operator()(const TScalar & v) const 31 { 32 // Map the input scalar between [0, 1]. 33 RealType value = this->RescaleInputValue(v); 34 35 // Set the rgb components after rescaling the values. 36 RGBPixelType pixel; 37 NumericTraits<TRGBPixel>::SetLength(pixel, 3); 38 39 pixel[0] = this->RescaleRGBComponentValue(value); 40 pixel[1] = pixel[0]; 41 pixel[2] = pixel[0]; 42 43 return pixel; 44 } 45 } // end namespace Function 46 } // end namespace itk 47 48 #endif 49