/*
?*?ColorSpace.cpp
?*
?*??Created?on:?2016年7月1日
?*??????Author:?Administrator
?*/

#include?“ColorSpace.hpp“

#include?
using?namespace?std;

#define?MAX2（a?b）?（?（a）?>?（b）?）????（a）?:?（b）
#define?MAX3（abc）?（?（?（a）?>?（b）?）????MAX2（?a?c）?:?MAX2（?b?c?）?）

#define?MIN2（a?b）??（?（a）?#define?MIN3（abc）?（?（?（a）?

#define?SWAP（a?b?t）??do?{?t?=?a;?a?=?b;?b?=?t;?}?while（0）
#define?CLIP_RANGE（value?min?max）??（?（value）?>?（max）???（max）?:?（（（value）?#define?COLOR_RANGE（value）??CLIP_RANGE（value?0?255）


namespace?cv?{

/**
?*?Convert?BGR?to?Lab
?*
?*?@param?bgr?[in]?pointer?to?pixel?data?in?Blue-Green-Red?format?each?channel‘s?value?range?[0?255]
?*?@param?lab?[out]?pointer?to?pixel?data?in?L-a-b?format
?*?????????L?value?range?[0?1]
?*?????????a?value?range?[0?1]
?*?????????b?value?range?[0?1]
?*/
void?BGR2Lab（const?uchar?*bgr?float?*lab）
//void?rgb2lab（?float?R?float?G?float?B?float?&?l_s?float?&a_s?float?&b_s?）
{
????float?var_R?=?bgr[2]?/255.0;
????float?var_G?=?bgr[1]?/255.0;
????float?var_B?=?bgr[0]?/255.0;


????if?（?var_R?>?0.04045?）?var_R?=?pow（?（（?var_R?+?0.055?）?/?1.055?）?2.4?）;
????else???????????????????var_R?=?var_R?/?12.92;

????if?（?var_G?>?0.04045?）?var_G?=?pow（?（?（?var_G?+?0.055?）?/?1.055?）?2.4）;
????else???????????????????var_G?=?var_G?/?12.92;

????if?（?var_B?>?0.04045?）?var_B?=?pow（?（?（?var_B?+?0.055?）?/?1.055?）?2.4）;
????else???????????????????var_B?=?var_B?/?12.92;

????var_R?=?var_R?*?100.;
????var_G?=?var_G?*?100.;
????var_B?=?var_B?*?100.;

????//Observer.?=?2°?Illuminant?=?D65
????float?X?=?var_R?*?0.4124?+?var_G?*?0.3576?+?var_B?*?0.1805;
????float?Y?=?var_R?*?0.2126?+?var_G?*?0.7152?+?var_B?*?0.0722;
????float?Z?=?var_R?*?0.0193?+?var_G?*?0.1192?+?var_B?*?0.9505;


????float?var_X?=?X?/?95.047?;????//ref_X?=??95.047???Observer=?2°?Illuminant=?D65
????float?var_Y?=?Y?/?100.000;????//ref_Y?=?100.000
????float?var_Z?=?Z?/?108.883;???//ref_Z?=?108.883

????if?（?var_X?>?0.008856?）?var_X?=?pow（var_X??（?1./3.?）?）;
????else????????????????????var_X?=?（?7.787?*?var_X?）?+?（?16.?/?116.?）;

????if?（?var_Y?>?0.008856?）?var_Y?=?pow（var_Y??（?1./3.?））;
????else????????????????????var_Y?=?（?7.787?*?var_Y?）?+?（?16.?/?116.?）;

????if?（?var_Z?>?0.008856?）?var_Z?=?pow（var_Z??（?1./3.?））;
????else????????????????????var_Z?=?（?7.787?*?var_Z?）?+?（?16.?/?116.?）;

????lab[0]?=?（?116.?*?var_Y?）?-?16.;
????lab[1]?=?500.?*?（?var_X?-?var_Y?）;
????lab[2]?=?200.?*?（?var_Y?-?var_Z?）;
}

/**
?*?Convert?Lab?to?BGR
?*
?*?@param?lab?[in]?pointer?to?pixel?data?in?L-a-b?format
?*?????????L?value?range?[0?1]
?*?????????a?value?range?[0?1]
?*?????????b?value?range?[0?1]
?*?@param?bgr?[out]?pointer?to?pixel?data?in?Blue-Green-Red?format?each?channel‘s?value?range?[0?255]
?*/
void?Lab2BGR（const??float?*lab?uchar?*bgr）
//http://www.easyrgb.com/in

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

?????文件?????124965??2016-07-09?17:08??building.jpg

?????文件??????15092??2016-07-04?03:39??ColorSpace.cpp

?????文件???????6671??2016-07-03?23:26??ColorSpace.hpp

?????文件???????5339??2016-07-05?00:00??HSL.cpp

?????文件???????1218??2016-09-11?19:49??HSL.hpp

?????文件???????1545??2016-09-11?19:56??demo_HSL.cpp

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

???????????????154830????????????????????6