/usr/include/waili/Channel.h is in libwaili-dev 19990723-22.1build1.
This file is owned by root:root, with mode 0o644.
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// Channel Class
//
// $Id: Channel.h,v 4.5.2.3.2.1 1999/07/20 16:15:43 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_CHANNEL_H
#define WAILI_CHANNEL_H
#include <assert.h>
#include "Wavelet.h"
#include "Blit.h"
enum TransformType {
TT_ColsRows, TT_Cols, TT_Rows
};
struct TransformDescriptor {
TransformType type; // TransformType
Wavelet_ID filter; // Wavelet_IDs
};
// Channel Abstract Base Class
class LChannel;
// class LChannelCR;
class Channel {
friend class LChannelCR;
friend class LChannelC;
friend class LChannelR;
public:
// Construction/Destruction
Channel();
Channel(u_int cols, u_int rows, int offx = 0, int offy = 0);
Channel(const Channel &channel);
virtual ~Channel();
static Channel *CreateFromDescriptor(u_int cols, u_int rows,
const TransformDescriptor transform[], u_int depth,
int offsetx = 0, int offsety = 0);
// Properties
u_int GetCols(void) const;
u_int GetRows(void) const;
int GetOffsetX(void) const;
int GetOffsetY(void) const;
virtual void GetMask(u_int &maskx, u_int &masky) const = 0;
virtual u_int GetDepth(void) const = 0;
virtual u_int GetSubbands(void) const = 0;
virtual double Psnr(const Channel &channel, PixType maxval = 255)
const;
virtual double MSE(const Channel &channel)
const;
virtual u64 *FullHistogram(PixType &min, PixType &max, u64 &numpixels)
const = 0;
double Entropy(void) const;
// Manipulation
virtual PixType &operator()(u_int c, u_int r) = 0;
virtual PixType operator()(u_int c, u_int r) const = 0;
virtual PixType *pixaddr(u_int c, u_int r) = 0;
virtual void Clear(void) = 0;
virtual void Resize(u_int cols, u_int rows);
virtual Channel *Clone(void) const = 0;
virtual void SetOffsetX(int offx) = 0;
virtual void SetOffsetY(int offy) = 0;
virtual Channel *Crop(int x1, int y1, int x2, int y2) const = 0;
virtual void Merge(const Channel &channel) = 0;
virtual void Add(const Channel &channel) = 0;
virtual void Subtract(const Channel &channel) = 0;
virtual Channel *Diff(const Channel &channel) const = 0;
virtual void Enhance(f32 m) = 0;
virtual void Enhance(int m, u_int shift) = 0;
// Wavelet Transforms
virtual LChannel *PushFwtStepCR(const Wavelet &wavelet) = 0;
virtual LChannel *PushFwtStepC(const Wavelet &wavelet) = 0;
virtual LChannel *PushFwtStepR(const Wavelet &wavelet) = 0;
virtual Channel *PopFwtStep(void) = 0;
// Thresholding
virtual u64 Threshold(double threshold, int soft = 0) = 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 = 0;
// Wavelet Based Operations
Channel *Scale(f32 s, const Wavelet &wavelet);
protected:
virtual void Destroy(void) = 0;
// Wavelet Based Operations
virtual Channel *DownScale(u_int s, const Wavelet &wavelet) = 0;
Channel *UpScale(u_int s, const Wavelet &wavelet);
static int GetEven(int len);
static int GetOdd(int len);
protected:
u_int Cols, Rows;
int OffsetX, OffsetY;
private:
static const char *rcsid;
};
/////////////////////////////////////////////////////////////////////////////
//
// Inline Member Functions
//
/////////////////////////////////////////////////////////////////////////////
inline Channel::Channel()
: Cols(0), Rows(0), OffsetX(0), OffsetY(0)
{}
inline Channel::Channel(u_int cols, u_int rows, int offx, int offy)
: Cols(cols), Rows(rows), OffsetX(offx), OffsetY(offy)
{}
inline Channel::Channel(const Channel &channel)
: Cols(channel.Cols), Rows(channel.Rows), OffsetX(channel.OffsetX),
OffsetY(channel.OffsetY)
{}
inline Channel::~Channel()
{}
inline u_int Channel::GetCols(void) const
{
return(Cols);
}
inline u_int Channel::GetRows(void) const
{
return(Rows);
}
inline int Channel::GetOffsetX(void) const
{
return(OffsetX);
}
inline int Channel::GetOffsetY(void) const
{
return(OffsetY);
}
inline void Channel::Resize(u_int cols, u_int rows)
{
Cols = cols;
Rows = rows;
}
inline int Channel::GetEven(int len)
{
return((len+(len>=0))/2);
}
inline int Channel::GetOdd(int len)
{
return((len-(len<0))/2);
}
// Include derived classes
#include "LChannel.h"
#include "NTChannel.h"
#endif // WAILI_CHANNEL_H
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