BlitzScaleFilter Namespace Reference

Functions
float	Bessel (const float x, const float)
float	BesselOrderOne (float x)
float	Blackman (const float x, const float)
float	BlackmanBessel (const float x, const float support)
float	BlackmanSinc (const float x, const float support)
float	Box (const float x, const float)
float	Catrom (const float x, const float)
float	Cubic (const float x, const float)
float	Gaussian (const float x, const float)
float	Hamming (const float x, const float)
float	Hanning (const float x, const float)
float	Hermite (const float x, const float)
bool	horizontalFilter (QImage *srcImg, QImage *destImg, float x_factor, float blur, ContributionInfo *contribution, Blitz::ScaleFilterType filter)
float	J1 (float x)
float	Lanczos (const float x, const float support)
float	Mitchell (const float x, const float)
float	P1 (float x)
float	Q1 (float x)
float	Quadratic (const float x, const float)
float	Sinc (const float x, const float)
float	Triangle (const float x, const float)
bool	verticalFilter (QImage *srcImg, QImage *destImg, float y_factor, float blur, ContributionInfo *contribution, Blitz::ScaleFilterType filter)
Variables
static const float	filterSupport [Blitz::SincFilter+1]
static const float	J1Pone []
static const float	J1Qone []
static const float	P1Pone []
static const float	P1Qone []
static const float	Q1Pone []
static const float	Q1Qone []

---

Function Documentation

float BlitzScaleFilter::Bessel	(	const float	x,
		const	float
	)			[inline]

Definition at line 216 of file scalefilter.cpp.

float BlitzScaleFilter::BesselOrderOne

(

float

x

)

[inline]

Definition at line 199 of file scalefilter.cpp.

float BlitzScaleFilter::Blackman	(	const float	x,
		const	float
	)			[inline]

Definition at line 228 of file scalefilter.cpp.

float BlitzScaleFilter::BlackmanBessel	(	const float	x,
		const float	support
	)			[inline]

Definition at line 232 of file scalefilter.cpp.

float BlitzScaleFilter::BlackmanSinc	(	const float	x,
		const float	support
	)			[inline]

Definition at line 236 of file scalefilter.cpp.

float BlitzScaleFilter::Box	(	const float	x,
		const	float
	)			[inline]

Definition at line 240 of file scalefilter.cpp.

float BlitzScaleFilter::Catrom	(	const float	x,
		const	float
	)			[inline]

Definition at line 248 of file scalefilter.cpp.

float BlitzScaleFilter::Cubic	(	const float	x,
		const	float
	)			[inline]

Definition at line 262 of file scalefilter.cpp.

float BlitzScaleFilter::Gaussian	(	const float	x,
		const	float
	)			[inline]

Definition at line 276 of file scalefilter.cpp.

float BlitzScaleFilter::Hamming	(	const float	x,
		const	float
	)			[inline]

Definition at line 284 of file scalefilter.cpp.

float BlitzScaleFilter::Hanning	(	const float	x,
		const	float
	)			[inline]

Definition at line 280 of file scalefilter.cpp.

float BlitzScaleFilter::Hermite	(	const float	x,
		const	float
	)			[inline]

Definition at line 288 of file scalefilter.cpp.

bool BlitzScaleFilter::horizontalFilter	(	QImage *	srcImg,
		QImage *	destImg,
		float	x_factor,
		float	blur,
		ContributionInfo *	contribution,
		Blitz::ScaleFilterType	filter
	)

Definition at line 361 of file scalefilter.cpp.

float BlitzScaleFilter::J1

(

float

x

)

[inline]

Definition at line 169 of file scalefilter.cpp.

float BlitzScaleFilter::Lanczos	(	const float	x,
		const float	support
	)			[inline]

Definition at line 298 of file scalefilter.cpp.

float BlitzScaleFilter::Mitchell	(	const float	x,
		const	float
	)			[inline]

Definition at line 308 of file scalefilter.cpp.

float BlitzScaleFilter::P1

(

float

x

)

[inline]

Definition at line 179 of file scalefilter.cpp.

float BlitzScaleFilter::Q1

(

float

x

)

[inline]

Definition at line 189 of file scalefilter.cpp.

float BlitzScaleFilter::Quadratic	(	const float	x,
		const	float
	)			[inline]

Definition at line 331 of file scalefilter.cpp.

float BlitzScaleFilter::Sinc	(	const float	x,
		const	float
	)			[inline]

Definition at line 222 of file scalefilter.cpp.

float BlitzScaleFilter::Triangle	(	const float	x,
		const	float
	)			[inline]

Definition at line 343 of file scalefilter.cpp.

bool BlitzScaleFilter::verticalFilter	(	QImage *	srcImg,
		QImage *	destImg,
		float	y_factor,
		float	blur,
		ContributionInfo *	contribution,
		Blitz::ScaleFilterType	filter
	)

Definition at line 507 of file scalefilter.cpp.

---

Variable Documentation

const float BlitzScaleFilter::filterSupport[Blitz::SincFilter+1] [static]

Initial value:

 {
         0.0f,
         0.0f,
         0.5f,
         1.0f,
         1.0f,
         1.0f,
         1.0f,
         1.0f,
         1.25f,
         1.5f,
         2.0f,
         2.0f,
         2.0f,
         3.0f,
         3.2383f,
         4.0f
    }

Definition at line 150 of file scalefilter.cpp.

const float BlitzScaleFilter::J1Pone[] [static]

Initial value:

 {
            0.581199354001606143928050809e+21f,
            -0.6672106568924916298020941484e+20f,
            0.2316433580634002297931815435e+19f,
            -0.3588817569910106050743641413e+17f,
            0.2908795263834775409737601689e+15f,
            -0.1322983480332126453125473247e+13f,
            0.3413234182301700539091292655e+10f,
            -0.4695753530642995859767162166e+7f,
            0.270112271089232341485679099e+4f
        }

Definition at line 91 of file scalefilter.cpp.

const float BlitzScaleFilter::J1Qone[] [static]

Initial value:

 {
            0.11623987080032122878585294e+22f,
            0.1185770712190320999837113348e+20f,
            0.6092061398917521746105196863e+17f,
            0.2081661221307607351240184229e+15f,
            0.5243710262167649715406728642e+12f,
            0.1013863514358673989967045588e+10f,
            0.1501793594998585505921097578e+7f,
            0.1606931573481487801970916749e+4f,
            0.1e+1
        }

Definition at line 102 of file scalefilter.cpp.

const float BlitzScaleFilter::P1Pone[] [static]

Initial value:

 {
            0.352246649133679798341724373e+5f,
            0.62758845247161281269005675e+5f,
            0.313539631109159574238669888e+5f,
            0.49854832060594338434500455e+4f,
            0.2111529182853962382105718e+3f,
            0.12571716929145341558495e+1f
        }

Definition at line 115 of file scalefilter.cpp.

const float BlitzScaleFilter::P1Qone[] [static]

Initial value:

 {
            0.352246649133679798068390431e+5f,
            0.626943469593560511888833731e+5f,
            0.312404063819041039923015703e+5f,
            0.4930396490181088979386097e+4f,
            0.2030775189134759322293574e+3f,
            0.1e+1f
        }

Definition at line 123 of file scalefilter.cpp.

const float BlitzScaleFilter::Q1Pone[] [static]

Initial value:

 {
            0.3511751914303552822533318e+3f,
            0.7210391804904475039280863e+3f,
            0.4259873011654442389886993e+3f,
            0.831898957673850827325226e+2f,
            0.45681716295512267064405e+1f,
            0.3532840052740123642735e-1f
        }

Definition at line 133 of file scalefilter.cpp.

const float BlitzScaleFilter::Q1Qone[] [static]

Initial value:

 {
            0.74917374171809127714519505e+4f,
            0.154141773392650970499848051e+5f,
            0.91522317015169922705904727e+4f,
            0.18111867005523513506724158e+4f,
            0.1038187585462133728776636e+3f,
            0.1e+1
        }

Definition at line 141 of file scalefilter.cpp.