110 lines
2.5 KiB
C
110 lines
2.5 KiB
C
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/*
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*
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* Copyright (C) 2002-2014, 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: dcmimage
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*
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* Author: Marco Eichelberg
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*
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* Purpose: class DcmQuantHistogramItem
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*
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*/
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#ifndef DIQTHITM_H
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#define DIQTHITM_H
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#include "dcmtk/config/osconfig.h"
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#include "dcmtk/ofstd/oftypes.h" /* for OFBool */
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#include "dcmtk/dcmimage/diqtpix.h" /* for DcmQuantPixel */
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/** this class extends DcmQuantPixel by an integer value
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* which is used for various purposes.
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* The class is used as a helper class during computation of an image
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* histogram, as a member of a color LUT and as a member of a color hash
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* table.
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*/
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class DCMTK_DCMIMAGE_EXPORT DcmQuantHistogramItem: public DcmQuantPixel
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{
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public:
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/** constructor
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* @param colorP pixel value
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* @param val initial value
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*/
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DcmQuantHistogramItem(const DcmQuantPixel& colorP, int val)
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: DcmQuantPixel(colorP)
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, value(val)
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{
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}
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/// default constructor
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DcmQuantHistogramItem()
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: DcmQuantPixel()
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, value(0)
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{
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}
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// we don't declare a destructor here, but the standard destructor will do.
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/** compares the stored pixel value with the given pixel.
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* @param colorP pixel to compare with
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* @return true if pixel values are equal, false otherwise
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*/
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inline OFBool equals(const DcmQuantPixel& colorP) const
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{
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return *this == colorP;
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}
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/// returns the integer value maintained by this object
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inline int getValue() const
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{
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return value;
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}
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/** assigns a new integer value to this object
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* @param v new value
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*/
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inline void setValue(int v)
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{
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value = v;
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}
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/// increases the integer value maintained by this object by one
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inline void incValue()
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{
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++value;
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}
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private:
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/** integer value assigned to this pixel. This value is used for different
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* purposes.
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* During computation of a histogram it is used as a counter that counts
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* the instances of the current color.
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* In a color hash table, it contains the index value from the color LUT
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* assigned to this color.
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* In a color LUT, it is the cluster value, i.e. the radius in which all
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* color are guaranteed to be mapped to this palette color.
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*/
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int value;
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};
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/// typedef for a pointer to a DcmQuantHistogramItem object
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typedef DcmQuantHistogramItem *DcmQuantHistogramItemPointer;
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#endif
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