1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
//
// Filename : ImagePyramid.h
// Author(s) : Stephane Grabli
// Purpose : Class to represent a pyramid of images
// Date of creation : 25/12/2003
//
///////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) : Please refer to the COPYRIGHT file distributed
// with this source distribution.
//
// 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 IMAGEPYRAMID_H
# define IMAGEPYRAMID_H
#include "../system/FreestyleConfig.h"
#include <vector>
class GrayImage;
class LIB_IMAGE_EXPORT ImagePyramid{
protected:
std::vector<GrayImage*> _levels;
public:
ImagePyramid(){}
ImagePyramid(const ImagePyramid& iBrother);
//ImagePyramid(const GrayImage& level0, unsigned nbLevels);
virtual ~ImagePyramid();
/*! Builds the pyramid.
* must be overloaded by inherited classes.
* if nbLevels==0, the complete pyramid is built
*/
virtual void BuildPyramid(const GrayImage& level0, unsigned nbLevels) = 0;
/*! Builds a pyramid without copying the base level */
virtual void BuildPyramid(GrayImage* level0, unsigned nbLevels) = 0;
virtual GrayImage * getLevel(int l);
/*! Returns the pixel x,y using bilinear interpolation.
* \param x
* the abscissa specified in the finest level coordinate system
* \param y
* the ordinate specified in the finest level coordinate system
* \param level
* the level from which we want the pixel to be evaluated
*/
virtual float pixel(int x, int y, int level=0);
/*! Returns the width of the level-th level image */
virtual int width(int level=0);
/*! Returns the height of the level-th level image */
virtual int height(int level=0);
/*! Returns the number of levels in the pyramid */
inline int getNumberOfLevels() const { return _levels.size();}
};
class LIB_IMAGE_EXPORT GaussianPyramid : public ImagePyramid
{
protected:
float _sigma;
public:
GaussianPyramid(float iSigma=1.f) : ImagePyramid() {_sigma=iSigma;}
GaussianPyramid(const GrayImage& level0, unsigned nbLevels, float iSigma=1.f);
GaussianPyramid(GrayImage* level0, unsigned nbLevels, float iSigma=1.f);
GaussianPyramid(const GaussianPyramid& iBrother);
virtual ~GaussianPyramid(){}
virtual void BuildPyramid(const GrayImage& level0, unsigned nbLevels);
virtual void BuildPyramid(GrayImage* level0, unsigned nbLevels);
/* accessors */
inline float getSigma() const {return _sigma;}
/* modifiers */
};
#endif // IMAGEPYRAMID_H
|
