/usr/include/waili/LChannel.h is in libwaili-dev 19990723-22.1+b2.
This file is owned by root:root, with mode 0o644.
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// LChannel Class
//
// $Id: LChannel.h,v 4.3.2.2.2.1 1999/07/20 16:15:44 geert Exp $
//
// Copyright (C) 1996-1999 Department of Computer Science, K.U.Leuven, Belgium
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
#ifndef WAILI_LCHANNEL_H
#define WAILI_LCHANNEL_H
#include <assert.h>
#include "Blit.h"
// Lifted Channel Abstract Base Class
enum SubBand {
SubBand_LL = 0, SubBand_LH = 1, SubBand_HL = 2, SubBand_HH = 3,
SubBand_L = SubBand_LL, SubBand_H = SubBand_LH
};
class LChannelCR;
class LChannelC;
class LChannelR;
class LChannel : public Channel {
friend class Channel;
friend class NTChannel;
friend class LChannelCR;
friend class LChannelC;
friend class LChannelR;
public:
// Construction/Destruction
LChannel(const LChannel &channel);
virtual ~LChannel();
// Properties
virtual u_int GetDepth(void) const;
u_int GetSubbands(void) const;
virtual TransformType GetTransformType(void) const = 0;
TransformDescriptor *GetTransform(void) const;
virtual u64 *FullHistogram(PixType &min, PixType &max, u64 &numpixels)
const;
int GetShift(SubBand band);
// Manipulation
virtual void Clear(void);
Channel* &operator[](SubBand band);
Channel* &operator[](SubBand band) const;
virtual LChannel *Clone(void) const = 0;
// Wavelet Transforms
NTChannel *IFwt(void);
virtual NTChannel *IFwt(int x1, int y1, int x2, int y2) const = 0;
virtual LChannel *PushFwtStepCR(const Wavelet &wavelet);
virtual LChannel *PushFwtStepC(const Wavelet &wavelet);
virtual LChannel *PushFwtStepR(const Wavelet &wavelet);
virtual Channel *PopFwtStep(void);
// Wavelet Based Operations
virtual LChannel *Crop(int x1, int y1, int x2, int y2) const;
virtual void Merge(const Channel &channel);
virtual void Enhance(f32 m);
virtual void Enhance(int m, u_int shift);
// Thresholding
virtual u64 Threshold(double threshold, int soft = 0);
// This should be removed later!! The user doesn't need to know
// what's the internal representation of the channel
virtual int IsLifted(void) const;
protected:
LChannel(const Wavelet &filter, u_int numsubbands,
u_int cols = 0, u_int rows = 0);
virtual void Destroy(void);
// Internal Wavelet Transform Steps
virtual NTChannel *IFwtStep(void);
virtual void Lazy(const NTChannel &source) = 0;
virtual void ILazy(NTChannel &dest) const = 0;
virtual void CakeWalk(void) = 0;
virtual void ICakeWalk(void) = 0;
// Wavelet Based Operations
virtual LChannel *Crop_rec(int x1, int y1, int x2, int y2,
NTChannel *top, NTChannel *bottom,
NTChannel *left, NTChannel *right) const = 0;
virtual void Merge_rec(const Channel *channel,
NTChannel *top, NTChannel *bottom,
NTChannel *left, NTChannel *right) = 0;
virtual Channel *DownScale(u_int s, const Wavelet &wavelet) = 0;
protected:
u_int NumSubBands;
Channel **SubBands;
const Wavelet *Filter;
int *Shifts;
private:
static const char *rcsid;
};
/////////////////////////////////////////////////////////////////////////////
//
// Inline Member Functions
//
/////////////////////////////////////////////////////////////////////////////
// inline LChannel::LChannel(const Wavelet &filter)
// : Channel(), Filter(NULL)
// {
// ::Clear(SubBands, NumSubBands); // Is niet correct voor C and R !!!!!!!
// Filter = filter.Clone();
// }
inline u_int LChannel::GetDepth(void) const
{
return(1+SubBands[0]->GetDepth());
}
inline u_int LChannel::GetSubbands(void) const
{
return NumSubBands;
}
inline int LChannel::GetShift(SubBand band)
{
assert((u_int)band < NumSubBands);
return(Shifts[band]);
}
inline Channel* &LChannel::operator[](SubBand band)
{
assert((u_int)band < NumSubBands);
//assert(SubBands[band] != NULL);
return(SubBands[band]);
}
inline Channel* &LChannel::operator[](SubBand band) const
{
assert((u_int)band < NumSubBands);
//assert(SubBands[band] != NULL);
return(SubBands[band]);
}
inline LChannel *LChannel::Crop(int x1, int y1, int x2, int y2) const
{
return(Crop_rec(x1, y1, x2, y2, NULL, NULL, NULL, NULL));
}
inline void LChannel::Merge(const Channel &channel)
{
Merge_rec(&channel, NULL, NULL, NULL, NULL);
}
inline int LChannel::IsLifted(void) const
{
return(1);
}
// Include derived classes
#include "LChannelCR.h"
#include "LChannelC.h"
#include "LChannelR.h"
#endif // WAILI_LCHANNEL_H
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