/*
?*?Speeded-Up?Robust?Features?（SURF）
?*?http://people.ee.ethz.ch/~surf
?*
?*?Authors:?Herbert?Bay?Andreas?Ess?Geert?Willems
?*?Windows?port?by?Stefan?Saur
?*
?*?Copyright?（2006）:?ETH?Zurich?Switzerland
?*?Katholieke?Universiteit?Leuven?Belgium
?*?All?rights?reserved.
?*
?*?For?details?see?the?paper:
?*?Herbert?Bay??Tinne?Tuytelaars??Luc?Van?Gool
?*??“SURF:?Speeded?Up?Robust?Features“
?*?Proceedings?of?the?ninth?European?Conference?on?Computer?Vision?May?2006
?*
?*?Permission?to?use?copy?modify?and?distribute?this?software?and
?*?its?documentation?for?educational?research?and?non-commercial
?*?purposes?without?fee?and?without?a?signed?licensing?agreement?is
?*?hereby?granted?provided?that?the?above?copyright?notice?and?this
?*?paragraph?appear?in?all?copies?modifications?and?distributions.
?*
?*?Any?commercial?use?or?any?redistribution?of?this?software
?*?requires?a?license?from?one?of?the?above?mentioned?establishments.
?*
?*?For?further?details?contact?Andreas?Ess?（aess@vision.ee.ethz.ch）.
?*/

#include?
#include?

#include?“imload.h“
#include?“image.h“

namespace?surf?{

#define?MAX（xy）??（（（x）?>?（y））???（x）?:?（y））
#define?MIN（xy）??（（（x）?#define?ABS（x）????（（（x）?>?0）???（x）?:?（-（x）））

using?namespace?std;

void?ignoreComments（ifstream&?imfile）?{
??char?c;
??do?{
????imfile?>>?c;
??}?while?（c?==?‘?‘）;
??imfile.putback（c）;

??imfile?>>?c;
??while?（c?==?‘#‘）?{
????imfile.ignore（256?‘\n‘）;
????imfile?>>?c;
??}
??imfile.putback（c）;
}

Image?*ImLoad::readImage（const?char?*fn）{
??ifstream?imfile（fn?ios::binary）;
??if?（!imfile.is_open（））?{
????cerr?<????exit（0）;
??}

??//?Reading?file?header
??char?P;
??char?num;
??imfile?>>?P?>>?num;?
??ignoreComments（imfile）;

??//?Read?image?dimensions?and?extremum?value
??int?width?height?extr;
??imfile?>>?width;
??ignoreComments（imfile）;
??imfile?>>?height;
??ignoreComments（imfile）;
??imfile?>>?extr;

??//?Check?whether?the?file?is?OK
??if?（P?!=?‘P‘?||?num?!=?‘5‘?||
??????width?<=?0?||?height?<=?0?||
??????extr?>?255）?{
????cerr?<????exit（0）;
??}

??//?Get?the?image?intensities?and?normalise?to?0?-?1.
??imfile.get（）;
??Image?*im?=?new?Image（width?height）;
??for?（int?y?=?0;?y?????for?（int?x?=?0;?x???????im->setPix（x?y?（（double）?imfile.get（））?/?extr）;
??return?im;
}

void?ImLoad::saveImage（const?char?*fn?Image?*im）?{
??ofstream?imfile（fn?ios::binary）;
??if?（!imfile.is_open（））?{
????cerr?<????exit（0）;
??}
??imfile?<??imfile?<getWidth（）?<getHeight（）?<??for?（int?y?=?0;?y?getHeight（）;?y++）
????for?（int?x?=?0;?x?getWidth（）;?x++）
??????imfile.put（（unsigned?char）（im->getPix（x?y）?*?255））;
}

}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????723370??2008-12-20?22:38??surf\SURF?Speeded?Up?Robust?Features.pdf

?????文件???????1314??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\CHANGES

?????文件???????3028??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\fasthessian.h

?????文件???????2805??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\image.h

?????文件???????2966??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\imload.cpp

?????文件???????1248??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\imload.h

?????文件???????1650??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\ipoint.h

?????文件?????310376??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\libSurf.a

?????文件?????269068??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\libSurf.so

?????文件????????832??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\LICENSE

?????文件???????9860??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\main.cpp

?????文件???????1151??2006-12-20?16:39??surf\SURF-V1.0.9\SURF-V1.0.9\Makefile

?????文件???????7323??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\match.cpp

?????文件???????1627??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\os_mapping.cpp

?????文件???????1512??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\os_mapping.h

?????文件?????531142??2006-12-20?16:39??surf\SURF-V1.0.9\SURF-V1.0.9\out.surf

?????文件???????1449??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\README

?????文件???????2866??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\surf.h

?????文件????3764310??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\surf.ln

?????文件???????4551??2006-12-20?17:28??surf\SURF-V1.0.9\SURF-V1.0.9\surflib.h

?????文件????2592902??2008-12-21?12:27??surf\surf.pdf

?????目錄??????????0??2008-12-30?11:57??surf\SURF-V1.0.9\SURF-V1.0.9

?????目錄??????????0??2008-12-30?11:57??surf\SURF-V1.0.9

?????目錄??????????0??2008-12-30?11:58??surf

-----------?---------??----------?-----??----

??????????????8235350????????????????????24