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HxImgFtorGenConv2d Class Template Reference

Instantiation of generic algorithm for generalized convolution operations on 2d images. More...

#include <HxImgFtorGenConv2d.h>

Inheritance diagram for HxImgFtorGenConv2d::

HxImgFtorI3Cast< DstImgSigT, SrcImgSigT, KerImgSigT > HxImgFtorI3 HxImgFunctor List of all members.

Public Types

typedef HxImgFtorGenConvKey KeyType
 The key type of this class. More...

typedef SrcImgSigT::DataPtrType SrcDataPtrType
 The data pointer type of the source image. More...

typedef KerImgSigT::DataPtrType KerDataPtrType
 The data pointer type of the kernel image. More...


Public Methods

 HxImgFtorGenConv2d ()
 Constructor. More...

virtual ~HxImgFtorGenConv2d ()
 Destructor. More...


Protected Methods

virtual void doIt (DstDataPtrType dstPtr, SrcDataPtrType srcPtr, KerDataPtrType kerPtr, HxSizes dstSize, HxSizes srcSize, HxSizes kerSize, HxTagList &tags, HxImgFtorDescription *=0)
 The actual operation. More...

Detailed Description

template<class DstImgSigT, class SrcImgSigT, class KerImgSigT, class PixOpT, class RedOpT, class KernelT>
class HxImgFtorGenConv2d< DstImgSigT, SrcImgSigT, KerImgSigT, PixOpT, RedOpT, KernelT >

Instantiation of generic algorithm for generalized convolution operations on 2d images.

Member Typedef Documentation

template<class DstImgSigT, class SrcImgSigT, class KerImgSigT, class PixOpT, class RedOpT, class KernelT>
typedef HxImgFtorGenConvKey HxImgFtorGenConv2d::KeyType
 

The key type of this class.

Reimplemented from HxImgFtorI3Cast.

template<class DstImgSigT, class SrcImgSigT, class KerImgSigT, class PixOpT, class RedOpT, class KernelT>
typedef SrcImgSigT::DataPtrType HxImgFtorGenConv2d::SrcDataPtrType
 

The data pointer type of the source image.

template<class DstImgSigT, class SrcImgSigT, class KerImgSigT, class PixOpT, class RedOpT, class KernelT>
typedef KerImgSigT::DataPtrType HxImgFtorGenConv2d::KerDataPtrType
 

The data pointer type of the kernel image.

Constructor & Destructor Documentation

template<class DstImgSigT, class SrcImgSigT, class KerImgSigT, class PixOpT, class RedOpT, class KernelT>
HxImgFtorGenConv2d< DstImgSigT, SrcImgSigT, KerImgSigT, PixOpT, RedOpT, KernelT >::HxImgFtorGenConv2d (    )  [inline]
 

Constructor. 

00032         : HxImgFtorI3Cast<DstImgSigT, SrcImgSigT, KerImgSigT>(
00033             HxImgFtorGenConvKey(HxClassName<DstImgSigT>(), 
00034                 HxClassName<SrcImgSigT>(), HxClassName<KerImgSigT>(), 
00035                 HxClassName<PixOpT>(), HxClassName<RedOpT>(),
00036                 HxClassName<KernelT>()))
00037 {
00038 #ifdef CD_TRACE
00039     HxEnvironment::instance()->outputStream()
00040         << "HxImgFtorGenConv2d::HxImgFtorGenConv2d()" << STD_ENDL;
00041 #endif
00042 }

template<class DstImgSigT, class SrcImgSigT, class KerImgSigT, class PixOpT, class RedOpT, class KernelT>
HxImgFtorGenConv2d< DstImgSigT, SrcImgSigT, KerImgSigT, PixOpT, RedOpT, KernelT >::~HxImgFtorGenConv2d (    )  [virtual]
 

Destructor. 

00048 {
00049 #ifdef CD_TRACE
00050     HxEnvironment::instance()->outputStream()
00051         << "HxImgFtorGenConv2d::~HxImgFtorGenConv2d()" << STD_ENDL;
00052 #endif
00053 }

Member Function Documentation

template<class DstImgSigT, class SrcImgSigT, class KerImgSigT, class PixOpT, class RedOpT, class KernelT>
void HxImgFtorGenConv2d< DstImgSigT, SrcImgSigT, KerImgSigT, PixOpT, RedOpT, KernelT >::doIt (  DstDataPtrType    dstPtr,
SrcDataPtrType    srcPtr,
KerDataPtrType    kerPtr,
HxSizes    dstSize,
HxSizes    srcSize,
HxSizes    kerSize,
HxTagList &    tags,
HxImgFtorDescription *    = 0
)  [protected, virtual]
 

The actual operation. 

00064 {
00065     int imgWidth = dstSize.x();
00066     int imgHeight = dstSize.y();
00067     int kerWidth = kerSize.x();
00068     int kerHeight = kerSize.y();
00069     int x, y, i, j;
00070 
00071     PixOpT pixOp(tags);
00072     RedOpT redOp(tags);
00073     KernelT kernel(kerPtr, kerSize, tags);
00074 
00075     typedef typename KerImgSigT::ArithType ArithType;
00076     ArithType result, tmpVal, neutralElement(RedOpT::neutralElement());
00077 
00078     for (y=0 ; y<imgHeight ; y++) {
00079         DstDataPtrType dPtr = dstPtr;
00080         dPtr.incY(y);
00081         for (x=0 ; x<imgWidth ; x++) {
00082             SrcDataPtrType sPtr = srcPtr;
00083             sPtr.incXYZ(x, y);
00084             result = neutralElement;
00085             for (j=0 ; j<kerHeight ; j++) {
00086                 for (i=0 ; i<kerWidth ; i++) {
00087                     tmpVal = pixOp.doIt(sPtr.readIncX(), kernel(i,j));
00088                     redOp.doIt(result, tmpVal);
00089                 }
00090                 sPtr.decX(kerWidth);
00091                 sPtr.incY();
00092             }
00093             dPtr.writeIncX(result);
00094         }
00095     }
00096 }

The documentation for this class was generated from the following files:
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