ImageTransformation.h

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//     ____   ______ __
//    / __ \ / ____// /
//   / /_/ // /    / /
//  / ____// /___ / /___   PixInsight Class Library
// /_/     \____//_____/   PCL 2.7.0
// ----------------------------------------------------------------------------
// pcl/ImageTransformation.h - Released 2024-06-18T15:48:54Z
// ----------------------------------------------------------------------------
// This file is part of the PixInsight Class Library (PCL).
// PCL is a multiplatform C++ framework for development of PixInsight modules.
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// ----------------------------------------------------------------------------
 
#ifndef __PCL_ImageTransformation_h
#define __PCL_ImageTransformation_h
 
 
#include <pcl/Defs.h>
#include <pcl/Diagnostics.h>
 
#include <pcl/Exception.h>
#include <pcl/ImageVariant.h>
 
namespace pcl
{
 
// ----------------------------------------------------------------------------
 
class PCL_CLASS ImageTransformation
{
public:
 
   ImageTransformation() = default;
 
   ImageTransformation( const ImageTransformation& ) = default;
 
   virtual ~ImageTransformation()
   {
   }
 
   template <class P>
   GenericImage<P>& operator >>( GenericImage<P>& image ) const
   {
      Apply( image );
      return image;
   }
 
   ImageVariant& operator >>( ImageVariant& image ) const
   {
      if ( image )
         if ( image.IsFloatSample() )
            switch ( image.BitsPerSample() )
            {
            case 32: Apply( static_cast<pcl::Image&>( *image ) ); break;
            case 64: Apply( static_cast<pcl::DImage&>( *image ) ); break;
            }
         else if ( image.IsComplexSample() )
            switch ( image.BitsPerSample() )
            {
            case 32: Apply( static_cast<pcl::ComplexImage&>( *image ) ); break;
            case 64: Apply( static_cast<pcl::DComplexImage&>( *image ) ); break;
            }
         else
            switch ( image.BitsPerSample() )
            {
            case  8: Apply( static_cast<pcl::UInt8Image&>( *image ) ); break;
            case 16: Apply( static_cast<pcl::UInt16Image&>( *image ) ); break;
            case 32: Apply( static_cast<pcl::UInt32Image&>( *image ) ); break;
            }
      return image;
   }
 
protected:
 
   virtual void Apply( pcl::Image& image ) const
   {
      throw NotImplemented( *this, "Apply to 32-bit floating-point images" );
   }
 
   virtual void Apply( pcl::DImage& image ) const
   {
      throw NotImplemented( *this, "Apply to 64-bit floating-point images" );
   }
 
   virtual void Apply( pcl::ComplexImage& image ) const
   {
      throw NotImplemented( *this, "Apply to 32-bit complex images" );
   }
 
   virtual void Apply( pcl::DComplexImage& image ) const
   {
      throw NotImplemented( *this, "Apply to 64-bit complex images" );
   }
 
   virtual void Apply( pcl::UInt8Image& image ) const
   {
      throw NotImplemented( *this, "Apply to 8-bit integer images" );
   }
 
   virtual void Apply( pcl::UInt16Image& image ) const
   {
      throw NotImplemented( *this, "Apply to 16-bit integer images" );
   }
 
   virtual void Apply( pcl::UInt32Image& image ) const
   {
      throw NotImplemented( *this, "Apply to 32-bit integer images" );
   }
};
 
// ----------------------------------------------------------------------------
 
class PCL_CLASS BidirectionalImageTransformation : public ImageTransformation
{
public:
 
   BidirectionalImageTransformation() = default;
 
   BidirectionalImageTransformation( const BidirectionalImageTransformation& ) = default;
 
   ~BidirectionalImageTransformation() override
   {
   }
 
   template <class P>
   const GenericImage<P>& operator <<( const GenericImage<P>& image )
   {
      Transform( image );
      return image;
   }
 
   const ImageVariant& operator <<( const ImageVariant& image )
   {
      if ( image )
         if ( image.IsFloatSample() )
            switch ( image.BitsPerSample() )
            {
            case 32: Transform( static_cast<const pcl::Image&>( *image ) ); break;
            case 64: Transform( static_cast<const pcl::DImage&>( *image ) ); break;
            }
         else if ( image.IsComplexSample() )
            switch ( image.BitsPerSample() )
            {
            case 32: Transform( static_cast<const pcl::ComplexImage&>( *image ) ); break;
            case 64: Transform( static_cast<const pcl::DComplexImage&>( *image ) ); break;
            }
         else
            switch ( image.BitsPerSample() )
            {
            case  8: Transform( static_cast<const pcl::UInt8Image&>( *image ) ); break;
            case 16: Transform( static_cast<const pcl::UInt16Image&>( *image ) ); break;
            case 32: Transform( static_cast<const pcl::UInt32Image&>( *image ) ); break;
            }
      return image;
   }
 
protected:
 
   virtual void Transform( const pcl::Image& image )
   {
      throw NotImplemented( *this, "Transformation of 32-bit floating-point images" );
   }
 
   virtual void Transform( const pcl::DImage& image )
   {
      throw NotImplemented( *this, "Transformation of 64-bit floating-point images" );
   }
 
   virtual void Transform( const pcl::ComplexImage& image )
   {
      throw NotImplemented( *this, "Transformation of 32-bit complex images" );
   }
 
   virtual void Transform( const pcl::DComplexImage& image )
   {
      throw NotImplemented( *this, "Transformation of 64-bit complex images" );
   }
 
   virtual void Transform( const pcl::UInt8Image& image )
   {
      throw NotImplemented( *this, "Transformation of 8-bit integer images" );
   }
 
   virtual void Transform( const pcl::UInt16Image& image )
   {
      throw NotImplemented( *this, "Transformation of 16-bit integer images" );
   }
 
   virtual void Transform( const pcl::UInt32Image& image )
   {
      throw NotImplemented( *this, "Transformation of 32-bit integer images" );
   }
};
 
// ----------------------------------------------------------------------------
// ----------------------------------------------------------------------------
 
/*
 * Implementation of members of GenericImage<> requiring a complete declaration
 * of ImageTransformation.
 */
 
// ----------------------------------------------------------------------------
 
template <class P> inline
GenericImage<P>& GenericImage<P>::Apply( const ImageTransformation& transformation,
                                         const Rect& rect, int firstChannel, int lastChannel )
{
   Rect r = rect;
   if ( !ParseSelection( r, firstChannel, lastChannel ) )
      return *this;
 
   PushSelections();
   SelectRectangle( r );
   SelectChannelRange( firstChannel, lastChannel );
 
   try
   {
      transformation >> *this;
      PopSelections();
   }
   catch ( ... )
   {
      PopSelections();
      throw;
   }
 
   return *this;
}
 
// ----------------------------------------------------------------------------
 
template <class P> inline
void GenericImage<P>::Transform( BidirectionalImageTransformation& transform,
                                 const Rect& rect, int firstChannel, int lastChannel ) const
{
   Rect r = rect;
   if ( !ParseSelection( r, firstChannel, lastChannel ) )
      return;
 
   PushSelections();
   SelectRectangle( r );
   SelectChannelRange( firstChannel, lastChannel );
 
   try
   {
      transform << *this;
      PopSelections();
   }
   catch ( ... )
   {
      PopSelections();
      throw;
   }
}
 
// ----------------------------------------------------------------------------
 
} // pcl
 
#endif   // __PCL_ImageTransformation_h
 
// ----------------------------------------------------------------------------
// EOF pcl/ImageTransformation.h - Released 2024-06-18T15:48:54Z