/*
Copyright?（c）?2012?Piotr?Dollar
All?rights?reserved.

Redistribution?and?use?in?source?and?binary?forms?with?or?without
modification?are?permitted?provided?that?the?following?conditions?are?met:

1.?Redistributions?of?source?code?must?retain?the?above?copyright?notice?this
list?of?conditions?and?the?following?disclaimer.
2.?Redistributions?in?binary?form?must?reproduce?the?above?copyright?notice
this?list?of?conditions?and?the?following?disclaimer?in?the?documentation
and/or?other?materials?provided?with?the?distribution.

THIS?SOFTWARE?IS?PROVIDED?BY?THE?COPYRIGHT?HOLDERS?AND?CONTRIBUTORS?“AS?IS“?AND
ANY?EXPRESS?OR?IMPLIED?WARRANTIES?INCLUDING?BUT?NOT?LIMITED?TO?THE?IMPLIED
WARRANTIES?OF?MERCHANTABILITY?AND?FITNESS?FOR?A?PARTICULAR?PURPOSE?ARE
DISCLAIMED.?IN?NO?EVENT?SHALL?THE?COPYRIGHT?OWNER?OR?CONTRIBUTORS?BE?LIABLE?FOR
ANY?DIRECT?INDIRECT?INCIDENTAL?SPECIAL?EXEMPLARY?OR?CONSEQUENTIAL?DAMAGES
（INCLUDING?BUT?NOT?LIMITED?TO?PROCUREMENT?OF?SUBSTITUTE?GOODS?OR?SERVICES;
LOSS?OF?USE?DATA?OR?PROFITS;?OR?BUSINESS?INTERRUPTION）?HOWEVER?CAUSED?AND
ON?ANY?THEORY?OF?LIABILITY?WHETHER?IN?CONTRACT?STRICT?LIABILITY?OR?TORT
（INCLUDING?NEGLIGENCE?OR?OTHERWISE）?ARISING?IN?ANY?WAY?OUT?OF?THE?USE?OF?THIS
SOFTWARE?EVEN?IF?ADVISED?OF?THE?POSSIBILITY?OF?SUCH?DAMAGE.

The?views?and?conclusions?contained?in?the?software?and?documentation?are?those
of?the?authors?and?should?not?be?interpreted?as?representing?official?policies
either?expressed?or?implied?of?the?FreeBSD?Project.
*/

/*******************************************************************************
*?Piotr‘s?Computer?Vision?Matlab?Toolbox??????Version?3.30
*?Copyright?2014?Piotr?Dollar?&?Ron?Appel.??[pdollar-at-gmail.com]
*?Licensed?under?the?Simplified?BSD?License?[see?above]
*?Project?page:?http://vision.ucsd.edu/~pdollar/toolbox/doc/
*?original?file:?https://github.com/pdollar/toolbox/blob/612f9a0451a6abbe2a64768c9e6654692929102e/channels/private/gradientMex.cpp

+?author:?Klaus?Haag
*?Move?external?license?file?into?source?file
*?Hackfix?crashes?on?Windows?and?Linux?when?called?directly?from?cpp?code
*?Allow?disabling?of?energy?channels?computation
*?Remove?unnecessary?code
+?author:?Luka?Cehovin:?Fix?equal?results?on?AMD?and?Intel?CPUs

TODO:?Fix?hackfixes?properly;?see?function?fhog?and?grad1...
*******************************************************************************/
#include?“gradientMex.hpp“
#include?
#include?“string.h“
#include?“sse.hpp“
#include?

#define?PI?3.14159265f

namespace?piotr?{
????//?compute?x?and?y?gradients?for?just?one?column?（uses?sse）
????void?grad1（float?*I?float?*Gx?float?*Gy?int?h?int?w?int?x）?{
????????int?y?y1;?float?*Ip?*In?r;?__m128?*_Ip?*_In?*_G?_r;
????????//?compute?column?of?Gx
????????Ip?=?I?-?h;?In?=?I?+?h;?r?=?.5f;
????????if?（x?==?0）?{?r?=?1;?Ip?+=?h;?}
????????else?if?（x?==?w?-?1）?{?r?=?1;?In?-=?h;?}

????????if?（h?0?||?（size_t（I）?&?15）?||?（size_t（Gx）?&?15））
????????{
????????????//?HACKF

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-05-04?00:20??DSST\
?????目錄???????????0??2017-05-04?00:28??DSST\DSST?Tracker\
?????目錄???????????0??2017-05-04?00:20??DSST\DSST?Tracker\.vs\
?????目錄???????????0??2017-05-04?00:20??DSST\DSST?Tracker\.vs\DSST?Tracker\
?????目錄???????????0??2017-05-04?00:20??DSST\DSST?Tracker\.vs\DSST?Tracker\v14\
?????文件???????34816??2017-05-04?00:28??DSST\DSST?Tracker\.vs\DSST?Tracker\v14\.suo
?????目錄???????????0??2017-05-04?00:22??DSST\DSST?Tracker\Debug\
?????目錄???????????0??2017-05-04?00:27??DSST\DSST?Tracker\DSST?Tracker\
?????文件????????1318??2017-05-04?00:20??DSST\DSST?Tracker\DSST?Tracker.sln
?????文件????13979648??2017-05-04?00:28??DSST\DSST?Tracker\DSST?Tracker.VC.db
?????文件????????2789??2015-05-19?06:18??DSST\DSST?Tracker\DSST?Tracker\cf_tracker.hpp
?????文件????????1791??2015-05-19?06:18??DSST\DSST?Tracker\DSST?Tracker\cv_ext.hpp
?????目錄???????????0??2017-05-04?00:22??DSST\DSST?Tracker\DSST?Tracker\Debug\
?????目錄???????????0??2017-05-04?00:22??DSST\DSST?Tracker\DSST?Tracker\Debug\DSST?Tracker.tlog\
?????文件????????8456??2017-05-04?00:28??DSST\DSST?Tracker\DSST?Tracker\DSST?Tracker.vcxproj
?????文件????????3170??2017-05-04?00:28??DSST\DSST?Tracker\DSST?Tracker\DSST?Tracker.vcxproj.filters
?????文件????????4288??2015-05-19?06:18??DSST\DSST?Tracker\DSST?Tracker\dsst_debug.hpp
?????文件???????25054??2017-03-30?21:27??DSST\DSST?Tracker\DSST?Tracker\dsst_tracker.hpp
?????文件????????6694??2015-05-19?06:18??DSST\DSST?Tracker\DSST?Tracker\feature_channels.hpp
?????文件???????28331??2015-05-19?06:18??DSST\DSST?Tracker\DSST?Tracker\gradientMex.cpp
?????文件???????13679??2015-05-19?06:18??DSST\DSST?Tracker\DSST?Tracker\gradientMex.hpp
?????文件????????3344??2015-05-19?06:18??DSST\DSST?Tracker\DSST?Tracker\image_acquisition.cpp
?????文件????????2599??2015-05-19?06:18??DSST\DSST?Tracker\DSST?Tracker\image_acquisition.hpp
?????文件????????4544??2015-05-19?06:18??DSST\DSST?Tracker\DSST?Tracker\init_box_selector.cpp
?????文件????????3163??2015-05-19?06:18??DSST\DSST?Tracker\DSST?Tracker\init_box_selector.hpp
?????文件????????6710??2017-03-30?22:32??DSST\DSST?Tracker\DSST?Tracker\main_dsst.cpp
?????文件????????2809??2015-05-19?06:18??DSST\DSST?Tracker\DSST?Tracker\math_helper.cpp
?????文件???????10490??2015-05-19?06:18??DSST\DSST?Tracker\DSST?Tracker\math_helper.hpp
?????文件???????10228??2015-05-19?06:18??DSST\DSST?Tracker\DSST?Tracker\math_spectrums.cpp
?????文件????????6085??2015-05-19?06:18??DSST\DSST?Tracker\DSST?Tracker\math_spectrums.hpp
?????文件????????2028??2015-05-19?06:18??DSST\DSST?Tracker\DSST?Tracker\mat_consts.hpp
............此處省略92個(gè)文件信息