w2kmeans::ObjectImageComparator Class Reference

Inheritance diagram for w2kmeans::ObjectImageComparator:

List of all members.

---

Detailed Description

Aligns the objects in the forecast to the verification field, reports on the alignment required, and then does an image comparision.

Author:

Lakshman

Version:

Id

w2kmeans_ObjectImageComparator.h,v 1.4 2009/06/02 20:17:59 lakshman Exp

Public Types
typedef std::vector< Pixel >	Region
Public Member Functions
	ObjectImageComparator (double minValue, double maxValue, bool maxIsBetter, const std::vector< code::Image< float > > &kernels, size_t searchDistance=0, bool includeNulls=false)
virtual	~ObjectImageComparator ()
virtual Score	scoreFiltered (const code::Image< float > &orig, const code::Image< float > &fcst) const
	aligns the objects in the forecast to the original, and then calls ImageComparator::scoreFiltered
void	align (const code::Image< float > &orig, const code::Image< float > &forecast, code::Image< float > &result, float &mean_ux, float &mean_uy, float &mean_impr, int &N) const
std::vector< Score >	score (const code::CartesianGrid2D &orig, const code::CartesianGrid2D &fil) const
	the two images should be of identical sizes.
std::vector< Score >	score (const code::LatLonGrid &orig, const code::LatLonGrid &fil) const
	the two images should be of identical sizes.
std::vector< Score >	score (const code::PolarGrid &orig, const code::PolarGrid &fil) const
	the two images should be of identical sizes.
std::vector< Score >	score (const code::Image< float > &orig, const code::Image< float > &fil) const
void	updateScore (double orig, double filtered, ImageComparator::Score *score) const
	Updates this score based on the orig and filtered values if findError returns true.
bool	findError (double orig, double filtered, double &error, bool &origValid, bool &estValid) const
	Find the error.
Protected Attributes
std::vector< code::SmartPtr< KernelFilter > >	filters
double	minValue
double	maxValue
bool	maxIsBetter
int	searchRadius
bool	includeNulls
Classes
struct	Movement
struct	Pixel

---

Member Typedef Documentation

typedef std::vector<Pixel> w2kmeans::ObjectImageComparator::Region

---

Constructor & Destructor Documentation

w2kmeans::ObjectImageComparator::ObjectImageComparator	(	double	minValue,
		double	maxValue,
		bool	maxIsBetter,
		const std::vector< code::Image< float > > &	kernels,
		size_t	searchDistance = 0,
		bool	includeNulls = false
	)			[inline]

virtual w2kmeans::ObjectImageComparator::~ObjectImageComparator

(

)

[inline, virtual]

---

Member Function Documentation

void w2kmeans::ObjectImageComparator::align	(	const code::Image< float > &	orig,
		const code::Image< float > &	forecast,
		code::Image< float > &	result,
		float &	mean_ux,
		float &	mean_uy,
		float &	mean_impr,
		int &	N
	)			const [inline]

bool w2img::ImageComparator::findError	(	double	orig,
		double	filtered,
		double &	error,
		bool &	origValid,
		bool &	estValid
	)			const [inherited]

Find the error.

The error is (filtered - orig) if both numbers are valid.

Returns:

true if the error returned is a usable number The error will be flagged as Constants::MissingData if both orig and filtered are invalid unless includeNulls was set in the constructor. Definition: An invalid value is a value equal to Constants::MISSING_DATA or less than minValue (if maxIsBetter).

std::vector<Score> w2img::ImageComparator::score	(	const code::Image< float > &	orig,
		const code::Image< float > &	fil
	)			const [inherited]

std::vector<Score> w2img::ImageComparator::score	(	const code::PolarGrid &	orig,
		const code::PolarGrid &	fil
	)			const [inherited]

the two images should be of identical sizes.

std::vector<Score> w2img::ImageComparator::score	(	const code::LatLonGrid &	orig,
		const code::LatLonGrid &	fil
	)			const [inherited]

the two images should be of identical sizes.

std::vector<Score> w2img::ImageComparator::score	(	const code::CartesianGrid2D &	orig,
		const code::CartesianGrid2D &	fil
	)			const [inherited]

the two images should be of identical sizes.

the return is the Score for each of the given kernels.

virtual Score w2kmeans::ObjectImageComparator::scoreFiltered	(	const code::Image< float > &	orig,
		const code::Image< float > &	fcst
	)			const [inline, virtual]

aligns the objects in the forecast to the original, and then calls ImageComparator::scoreFiltered

Reimplemented from w2img::ImageComparator.

void w2img::ImageComparator::updateScore	(	double	orig,
		double	filtered,
		ImageComparator::Score *	score
	)			const [inherited]

Updates this score based on the orig and filtered values if findError returns true.

See also:

findError

---

Member Data Documentation

std::vector< code::SmartPtr<KernelFilter> > w2img::ImageComparator::filters [protected, inherited]

bool w2img::ImageComparator::includeNulls [protected, inherited]

bool w2img::ImageComparator::maxIsBetter [protected, inherited]

double w2img::ImageComparator::maxValue [protected, inherited]

double w2img::ImageComparator::minValue [protected, inherited]

int w2img::ImageComparator::searchRadius [protected, inherited]

---