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114 lines
2.5 KiB
114 lines
2.5 KiB
/* ============================================================
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*
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* This file is a part of digiKam project
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* http://www.digikam.org
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*
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* Date : 2004-07-21
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* Description : image histogram manipulation methods.
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*
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* Copyright (C) 2004-2007 by Gilles Caulier <caulier dot gilles at gmail dot com>
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*
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* This program is free software; you can redistribute it
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* and/or modify it under the terms of the GNU General
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* Public License as published by the Free Software Foundation;
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* either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* ============================================================ */
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#ifndef IMAGEHISTOGRAM_H
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#define IMAGEHISTOGRAM_H
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// TQt includes.
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#include <tqthread.h>
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// Local includes.
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#include "digikam_export.h"
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class TQObject;
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namespace Digikam
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{
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class ImageHistogramPriv;
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class DImg;
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class DIGIKAM_EXPORT ImageHistogram : public TQThread
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{
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public:
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enum HistogramChannelType
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{
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ValueChannel = 0,
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RedChannel,
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GreenChannel,
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BlueChannel,
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AlphaChannel
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};
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class EventData
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{
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public:
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EventData()
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{
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starting = false;
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success = false;
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histogram = 0;
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}
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bool starting;
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bool success;
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ImageHistogram *histogram;
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};
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public:
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ImageHistogram(uchar *i_data, uint i_w, uint i_h, bool i_sixteenBits, TQObject *parent=0);
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ImageHistogram(const DImg& image, TQObject *parent=0);
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~ImageHistogram();
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void setup(uchar *i_data, uint i_w, uint i_h, bool i_sixteenBits, TQObject *parent);
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/** Method to stop threaded computations.*/
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void stopCalcHistogramValues(void);
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/** Methods for to manipulate the histogram data.*/
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double getCount(int channel, int start, int end);
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double getMean(int channel, int start, int end);
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double getPixels();
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double getStdDev(int channel, int start, int end);
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double getValue(int channel, int bin);
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double getMaximum(int channel);
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int getHistogramSegment(void);
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int getMedian(int channel, int start, int end);
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private:
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ImageHistogramPriv* d;
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private:
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void calcHistogramValues();
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void postProgress(bool starting, bool success);
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protected:
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virtual void run();
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};
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} // NameSpace Digikam
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#endif /* IMAGEHISTOGRAM_H */
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