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/*========================================================================= |
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Program: Insight Segmentation & Registration Toolkit |
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Module: $RCSfile: itkScalarToRGBPixelFunctor.h.html,v $ |
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Language: C++ |
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Date: $Date: 2006/01/17 19:15:47 $ |
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Version: $Revision: 1.4 $ |
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Copyright (c) Insight Software Consortium. All rights reserved. |
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See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details. |
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This software is distributed WITHOUT ANY WARRANTY; without even |
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
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PURPOSE. See the above copyright notices for more information. |
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=========================================================================*/ |
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#ifndef _itkScalarToRGBPixelFunctor_h |
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#define _itkScalarToRGBPixelFunctor_h |
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#include "itkRGBPixel.h" |
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namespace itk { |
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namespace Functor { |
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/** |
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* \class ScalarToRGBPixelFunctor |
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* \brief Function object which maps a scalar value into an RGB pixel value. |
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* |
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* This class is useful for visualizing labeled images which cannot be mapped |
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* succefully into grayscale images. Images of unsigned long integers, for |
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* example may have too many graylevels to visualize effectively. |
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* |
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* The hashing scheme used is designed to spread close scalar values very |
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* different colors by using the least significant bits (fastest changing) of |
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* the scalar type to determine the color. Because labeled images may |
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* typically use sequential values, it is desirable that those values result |
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* in easily discernable colors. |
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* |
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*/ |
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template< class TScalar > |
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class ITK_EXPORT ScalarToRGBPixelFunctor |
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{ |
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public: |
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ScalarToRGBPixelFunctor(); |
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~ScalarToRGBPixelFunctor() {}; |
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typedef unsigned char RGBComponentType; |
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typedef RGBPixel<RGBComponentType> RGBPixelType; |
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typedef TScalar ScalarType; |
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RGBPixelType operator()( const TScalar &) const; |
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void SetLittleEndian() |
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**{ |
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m_IsBigEndian = false; |
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**} |
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void SetBigEndian() |
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**{ |
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m_IsBigEndian = true; |
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**} |
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private: |
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bool m_IsBigEndian; |
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::size_t m_Index[3]; |
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}; |
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} // end namespace functor |
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} // end namespace itk |
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#ifndef ITK_MANUAL_INSTANTIATION |
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#include "itkScalarToRGBPixelFunctor.txx" |
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#endif |
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#endif |
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