#include?“guidedfilter.h“

static?cv::Mat?boxfilter（const?cv::Mat?&I?int?r）
{
	cv::Mat?result;
	cv::blur（I?result?cv::Size（r?r））;
	return?result;
}

static?cv::Mat?convertTo（const?cv::Mat?&mat?int?depth）
{
	if?（mat.depth（）?==?depth）
		return?mat;

	cv::Mat?result;
	mat.convertTo（result?depth）;
	return?result;
}

class?GuidedFilterImpl
{
public:
	virtual?~GuidedFilterImpl（）?{}

	cv::Mat?filter（const?cv::Mat?&p?int?depth）;

protected:
	int?Idepth;

private:
	virtual?cv::Mat?filterSingleChannel（const?cv::Mat?&p）?const?=?0;
};

class?GuidedFilterMono?:?public?GuidedFilterImpl
{
public:
	GuidedFilterMono（const?cv::Mat?&I?int?r?double?eps）;

private:
	virtual?cv::Mat?filterSingleChannel（const?cv::Mat?&p）?const;

private:
	int?r;
	double?eps;
	cv::Mat?I?mean_I?var_I;
};

class?GuidedFilterColor?:?public?GuidedFilterImpl
{
public:
	GuidedFilterColor（const?cv::Mat?&I?int?r?double?eps）;

private:
	virtual?cv::Mat?filterSingleChannel（const?cv::Mat?&p）?const;

private:
	std::vector?Ichannels;
	int?r;
	double?eps;
	int?S;
	cv::Mat?mean_I_r?mean_I_g?mean_I_b;
	cv::Mat?invrr?invrg?invrb?invgg?invgb?invbb;
};


cv::Mat?GuidedFilterImpl::filter（const?cv::Mat?&p?int?depth）
{
	cv::Mat?p2?=?convertTo（p?Idepth）;

	cv::Mat?result;
	if?（p.channels（）?==?1）
	{
		result?=?filterSingleChannel（p2）;
	}
	else
	{
		std::vector?pc;
		cv::split（p2?pc）;

		for?（std::size_t?i?=?0;?i?			pc[i]?=?filterSingleChannel（pc[i]）;

		cv::merge（pc?result）;
	}

	return?convertTo（result?depth?==?-1???p.depth（）?:?depth）;
}

GuidedFilterMono::GuidedFilterMono（const?cv::Mat?&origI?int?r?double?eps）?:?r（r）?eps（eps）
{
	if?（origI.depth（）?==?CV_32F?||?origI.depth（）?==?CV_64F）
		I?=?origI.clone（）;
	else
		I?=?convertTo（origI?CV_32F）;

	Idepth?=?I.depth（）;

	mean_I?=?boxfilter（I?r）;
	cv::Mat?mean_II?=?boxfilter（I.mul（I）?r）;
	var_I?=?mean_II?-?mean_I.mul（mean_I）;
}

cv::Mat?GuidedFilterMono::filterSingleChannel（const?cv::Mat?&p）?const
{
	cv::Mat?mean_p?=?boxfilter（p?r）;
	cv::Mat?mean_Ip?=?boxfilter（I.mul（p）?r）;
	cv::Mat?cov_Ip?=?mean_Ip?-?mean_I.mul（mean_p）;?//?this?is?the?covariance?of?（I?p）?in?each?local?patch.

	cv::Mat?a?=?cov_Ip?/?（var_I?+?eps）;?//?Eqn.?（5）?in?the?paper;
	cv::Mat?b?=?mean_p?-?a.mul（mean_I）;?//?Eqn.?（6）?in?the?paper;

	cv::Mat?mean_a?=?boxfilter（a?r）;
	cv::Mat?mean_b?=?boxfilter（b?r）;

	return?mean_a.mul（I）?+?mean_b;
}

GuidedFilterColor::GuidedFilterColor（const?cv::Mat?&origI?int?r?double?eps）?:?r（r）?eps（eps）
{
	cv::Mat?I;
	if?（origI.depth（）?==?CV_32F?||?origI.depth（）?==?CV_64F）
		I?=?origI.clone（）;
	else
		I?=?convertTo（origI?CV_32F）;

	Idepth?=?I.depth（）;

	cv::split（I?Ichannels）;

	mean_I_r?=?boxfilter（Ichannels[0]?r）;
	mean_I_g?=?boxfilter（Ichannels[1]?r）;
	mean_I_b?=?boxfilter（Ichannels[2]?r）;

	//?variance?of?I?in?each?local?patch:?the?matrix?Sigma?in?Eqn?（14）.
	//?

?屬性????????????大小?????日期????時(shí)間???名稱
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?????目錄???????????0??2016-03-16?07:02??haze-remove-master\
?????文件?????????242??2016-03-16?07:02??haze-remove-master\.gitignore
?????目錄???????????0??2016-03-16?07:02??haze-remove-master\.vs\
?????目錄???????????0??2016-03-16?07:02??haze-remove-master\.vs\haze-remove\
?????目錄???????????0??2016-03-16?07:02??haze-remove-master\.vs\haze-remove\v14\
?????文件???????16384??2016-03-16?07:02??haze-remove-master\.vs\haze-remove\v14\.suo
?????文件???????11357??2016-03-16?07:02??haze-remove-master\LICENSE
?????文件????????8332??2016-03-16?07:02??haze-remove-master\README.md
?????文件??????????42??2016-03-16?07:02??haze-remove-master\haze-remove.VC.opendb
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?????文件??????793283??2016-03-16?07:02??haze-remove-master\haze-remove\1.jpg
?????目錄???????????0??2016-03-16?07:02??haze-remove-master\haze-remove\Debug\
?????文件??????266925??2016-03-16?07:02??haze-remove-master\haze-remove\Debug\guidedfilter.obj
?????文件????????3495??2016-03-16?07:02??haze-remove-master\haze-remove\Debug\haze-remove.log
?????目錄???????????0??2016-03-16?07:02??haze-remove-master\haze-remove\Debug\haze-remove.tlog\
?????文件????????1602??2016-03-16?07:02??haze-remove-master\haze-remove\Debug\haze-remove.tlog\CL.command.1.tlog
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?????文件???????????2??2016-03-16?07:02??haze-remove-master\haze-remove\Debug\haze-remove.tlog\link.command.1.tlog
?????文件???????????2??2016-03-16?07:02??haze-remove-master\haze-remove\Debug\haze-remove.tlog\link.read.1.tlog
?????文件???????????2??2016-03-16?07:02??haze-remove-master\haze-remove\Debug\haze-remove.tlog\link.write.1.tlog
?????文件???????????0??2016-03-16?07:02??haze-remove-master\haze-remove\Debug\haze-remove.tlog\unsuccessfulbuild
?????文件??????307104??2016-03-16?07:02??haze-remove-master\haze-remove\Debug\main.obj
?????文件??????789504??2016-03-16?07:02??haze-remove-master\haze-remove\Debug\vc140.idb
?????文件?????1069056??2016-03-16?07:02??haze-remove-master\haze-remove\Debug\vc140.pdb
?????文件????????5923??2016-03-16?07:02??haze-remove-master\haze-remove\guidedfilter.cpp
?????文件?????????425??2016-03-16?07:02??haze-remove-master\haze-remove\guidedfilter.h
?????文件????????8190??2016-03-16?07:02??haze-remove-master\haze-remove\haze-remove.vcxproj
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