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11//                For Open Source Computer Vision Library
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41
42
43#ifndef __CVVECTRACK_H__
44#define __CVVECTRACK_H__
45
46#include <string.h>
47#include <math.h>
48#include <time.h>
49#include <stdio.h>
50
51#undef max
52#undef min
53
54#define max(a,b) ((a)<(b) ? (b) : (a))
55#define min(a,b) ((a)>(b) ? (a) : (b))
56
57inline int pow2(int v)
58{
59        return (v*v);
60}
61
62inline int operator == (const CvRect& r1, const CvRect& r2)
63{
64        return (r1.x == r2.x) && (r1.y == r2.y) &&
65                        (r1.width == r2.width) && (r1.height == r2.height);
66}
67
68inline int operator != (const CvRect& r1, const CvRect& r2)
69{
70        return !(r1 == r2);
71}
72
73inline
74int CmpPoints(const CvPoint& p1, const CvPoint& p2, int err)
75{
76        /* Simakov: modify __max to max */
77        return (max(abs(p1.x - p2.x), abs(p1.y - p2.y)) < err);
78}
79
80inline
81int PointInRect(const CvPoint& p, const CvRect& r)
82{
83        return ((p.x > r.x) && (p.x < (r.x + r.width)) &&
84                        (p.y > r.y) && (p.y < (r.y + r.height)));
85}
86
87inline
88int RectInRect(const CvRect& r1, const CvRect& r2)
89{
90        CvPoint plt = {r1.x, r1.y};
91        CvPoint prb = {r1.x + r1.width, r1.y + r1.height};
92        return (PointInRect(plt, r2) && PointInRect(prb, r2));
93}
94
95inline
96CvRect Increase(const CvRect& r, int decr)
97{
98        CvRect rect;
99        rect.x = r.x * decr;
100        rect.y = r.y * decr;
101        rect.width = r.width * decr;
102        rect.height = r.height * decr;
103        return rect;
104}
105
106inline
107CvPoint Increase(const CvPoint& p, int decr)
108{
109        CvPoint point;
110        point.x = p.x * decr;
111        point.y = p.y * decr;
112        return point;
113}
114
115inline
116void Move(CvRect& r, int dx, int dy)
117{
118        r.x += dx;
119        r.y += dy;
120}
121
122inline
123void Move(CvPoint& p, int dx, int dy)
124{
125        p.x += dx;
126        p.y += dy;
127}
128
129inline
130void Extend(CvRect& r, int d)
131{
132        r.x -= d;
133        r.y -= d;
134        r.width += 2*d;
135        r.height += 2*d;
136}
137
138inline
139CvPoint Center(const CvRect& r)
140{
141        CvPoint p;
142        p.x = r.x + r.width / 2;
143        p.y = r.y + r.height / 2;
144        return p;
145}
146
147inline void ReallocImage(IplImage** ppImage, CvSize sz, long lChNum)
148{
149    IplImage* pImage;
150    if( ppImage == NULL )
151                return;
152    pImage = *ppImage;
153    if( pImage != NULL )
154    {
155        if (pImage->width != sz.width || pImage->height != sz.height || pImage->nChannels != lChNum)
156            cvReleaseImage( &pImage );
157    }
158    if( pImage == NULL )
159        pImage = cvCreateImage( sz, IPL_DEPTH_8U, lChNum);
160    *ppImage = pImage;
161}
162
163#endif //__VECTRACK_H__
164