128 lines
4.0 KiB
C
128 lines
4.0 KiB
C
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/*
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*
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* Copyright (C) 1996-2011, OFFIS e.V.
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* All rights reserved. See COPYRIGHT file for details.
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*
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* This software and supporting documentation were developed by
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*
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* OFFIS e.V.
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* R&D Division Health
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* Escherweg 2
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* D-26121 Oldenburg, Germany
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*
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*
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* Module: dcmimgle
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*
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* Author: Joerg Riesmeier
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*
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* Purpose: DicomMonochromeScaleTemplate (Header)
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*
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*/
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#ifndef DIMOSCT_H
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#define DIMOSCT_H
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#include "dcmtk/config/osconfig.h"
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#include "dcmtk/ofstd/ofcast.h"
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#include "dcmtk/dcmimgle/dimopxt.h"
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#include "dcmtk/dcmimgle/discalet.h"
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#include "dcmtk/dcmimgle/didispfn.h"
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/*---------------------*
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* class declaration *
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*---------------------*/
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/** Template class to scale monochrome images (on pixel data level).
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*/
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template<class T>
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class DiMonoScaleTemplate
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: public DiMonoPixelTemplate<T>,
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protected DiScaleTemplate<T>
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{
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public:
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/** constructor
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*
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** @param pixel pointer to intermediate pixel representation
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* @param columns width of source image
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* @param rows height of source image
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* @param left_pos left coordinate of clipping area
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* @param top_pos top coordinate of clipping area
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* @param src_cols width of clipping area
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* @param src_rows height of clipping area
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* @param dest_cols width of destination image (scaled image)
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* @param dest_rows height of destination image
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* @param frames number of frames
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* @param bits number of bits per plane/pixel
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* @param interpolate use of interpolation when scaling
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* @param pvalue value possibly used for regions outside the image boundaries
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*/
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DiMonoScaleTemplate(const DiMonoPixel *pixel,
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const Uint16 columns,
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const Uint16 rows,
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const signed long left_pos,
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const signed long top_pos,
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const Uint16 src_cols,
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const Uint16 src_rows,
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const Uint16 dest_cols,
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const Uint16 dest_rows,
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const Uint32 frames,
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const int bits,
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const int interpolate,
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const Uint16 pvalue)
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: DiMonoPixelTemplate<T>(pixel, OFstatic_cast(unsigned long, dest_cols) * OFstatic_cast(unsigned long, dest_rows) * frames),
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DiScaleTemplate<T>(1, columns, rows, left_pos, top_pos, src_cols, src_rows, dest_cols, dest_rows, frames, bits)
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{
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if ((pixel != NULL) && (pixel->getCount() > 0))
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{
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if (pixel->getCount() == OFstatic_cast(unsigned long, columns) * OFstatic_cast(unsigned long, rows) * frames)
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{
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scale(OFstatic_cast(const T *, pixel->getData()), pixel->getBits(), interpolate, pvalue);
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this->determineMinMax();
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} else {
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DCMIMGLE_WARN("could not scale image ... corrupted data");
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}
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}
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}
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/** destructor
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*/
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virtual ~DiMonoScaleTemplate()
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{
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}
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private:
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/** scale pixel data
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*
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** @param pixel pointer to pixel data to be scaled
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* @param bits bit depth of pixel data
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* @param interpolate use of interpolation when scaling
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* @param pvalue value possibly used for regions outside the image boundaries
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*/
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inline void scale(const T *pixel,
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const unsigned int bits,
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const int interpolate,
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const Uint16 pvalue)
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{
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if (pixel != NULL)
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{
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this->Data = new T[this->getCount()];
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if (this->Data != NULL)
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{
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const T value = OFstatic_cast(T, OFstatic_cast(double, DicomImageClass::maxval(bits)) *
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OFstatic_cast(double, pvalue) / OFstatic_cast(double, DicomImageClass::maxval(WIDTH_OF_PVALUES)));
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this->scaleData(&pixel, &this->Data, interpolate, value);
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}
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}
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}
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};
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#endif
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