KImageEffect Class Reference

This class includes various QImage based graphical effects. More...

#include <kimageeffect.h>

List of all members.

Public Types

enum GradientType {
  VerticalGradient, HorizontalGradient, DiagonalGradient, CrossDiagonalGradient,
  PyramidGradient, RectangleGradient, PipeCrossGradient, EllipticGradient
}

enum RGBComponent {
  Red, Green, Blue, Gray,
  All
}

enum Lighting {
  NorthLite, NWLite, WestLite, SWLite,
  SouthLite, SELite, EastLite, NELite
}

enum ModulationType { Intensity, Saturation, HueShift, Contrast }

enum NoiseType {
  UniformNoise = 0, GaussianNoise, MultiplicativeGaussianNoise, ImpulseNoise,
  LaplacianNoise, PoissonNoise
}

enum RotateDirection { Rotate90, Rotate180, Rotate270 }

enum Disposition {
  NoImage = 0, Centered, Tiled, CenterTiled,
  CenteredMaxpect, TiledMaxpect, Scaled, CenteredAutoFit
}

Static Public Member Functions

QImage gradient (const QSize &size, const QColor &ca, const QColor &cb, GradientType type, int ncols=3)

QImage unbalancedGradient (const QSize &size, const QColor &ca, const QColor &cb, GradientType type, int xfactor=100, int yfactor=100, int ncols=3)

QImage & blend (const QColor &clr, QImage &dst, float opacity)

QImage & blend (QImage &src, QImage &dst, float opacity)

QImage & blend (QImage &image, float initial_intensity, const QColor &bgnd, GradientType eff, bool anti_dir=false)

QImage & blend (QImage &image1, QImage &image2, GradientType gt, int xf=100, int yf=100)

QImage & blend (QImage &image1, QImage &image2, QImage &blendImage, RGBComponent channel)

bool blend (const QImage &upper, const QImage &lower, QImage &output)

bool blend (int &x, int &y, const QImage &upper, const QImage &lower, QImage &output)

bool blendOnLower (int x, int y, const QImage &upper, const QImage &lower)

void blendOnLower (const QImage &upper, const QPoint &upperOffset, QImage &lower, const QRect &lowerRect)

void blendOnLower (const QImage &upper, const QPoint &upperOffset, QImage &lower, const QRect &lowerRect, float opacity)

QRect computeDestinationRect (const QSize &lowerSize, Disposition disposition, QImage &upper)

void blendOnLower (QImage &upper, QImage &lower, Disposition disposition, float opacity)

QImage & channelIntensity (QImage &image, float percent, RGBComponent channel)

QImage & fade (QImage &image, float val, const QColor &color)

QImage & flatten (QImage &image, const QColor &ca, const QColor &cb, int ncols=0)

QImage & hash (QImage &image, Lighting lite=NorthLite, unsigned int spacing=0)

QImage & intensity (QImage &image, float percent)

QImage & modulate (QImage &image, QImage &modImage, bool reverse, ModulationType type, int factor, RGBComponent channel)

QImage & toGray (QImage &image, bool fast=false)

QImage & desaturate (QImage &image, float desat=0.3)

QImage & contrast (QImage &image, int c)

QImage & dither (QImage &image, const QColor *palette, int size)

QImage & selectedImage (QImage &img, const QColor &col)

void contrastHSV (QImage &img, bool sharpen=true)

void normalize (QImage &img)

void equalize (QImage &img)

void threshold (QImage &img, unsigned int value=128)

void solarize (QImage &img, double factor=50.0)

QImage emboss (QImage &src, double radius, double sigma)

QImage emboss (QImage &src)

QImage despeckle (QImage &src)

QImage charcoal (QImage &src, double radius, double sigma)

QImage charcoal (QImage &src, double factor=50.0)

QImage rotate (QImage &src, RotateDirection r)

QImage sample (QImage &src, int w, int h)

QImage addNoise (QImage &src, NoiseType type=GaussianNoise)

QImage blur (QImage &src, double radius, double sigma)

QImage blur (QImage &src, double factor=50.0)

QImage edge (QImage &src, double radius)

QImage implode (QImage &src, double factor=30.0, unsigned int background=0xFFFFFFFF)

QImage oilPaintConvolve (QImage &src, double radius)

QImage oilPaint (QImage &src, int radius=3)

QImage sharpen (QImage &src, double radius, double sigma)

QImage sharpen (QImage &src, double factor=30.0)

QImage spread (QImage &src, unsigned int amount=3)

QImage shade (QImage &src, bool color_shading=true, double azimuth=30.0, double elevation=30.0)

QImage swirl (QImage &src, double degrees=50.0, unsigned int background=0xFFFFFFFF)

QImage wave (QImage &src, double amplitude=25.0, double frequency=150.0, unsigned int background=0xFFFFFFFF)

Detailed Description

This class includes various QImage based graphical effects.

Everything is static, so there is no need to create an instance of this class. You can just call the static methods. They are encapsulated here merely to provide a common namespace.

Definition at line 48 of file kimageeffect.h.

Member Enumeration Documentation

enum KImageEffect::GradientType

This enum provides a gradient type specification.

See also:
KImageEffect::blend(), KImageEffect::gradient(), KImageEffect::unbalancedGradient()

Definition at line 56 of file kimageeffect.h.

enum KImageEffect::RGBComponent

This enum provides a RGB channel specification.

See also:
KImageEffect::blend(), KImageEffect::channelIntensity(), KImageEffect::modulate()

Enumeration values:

Red Red channel.

Green Green channel.

Blue Blue channel.

Gray Grey channel.

All All channels.

Definition at line 71 of file kimageeffect.h.

enum KImageEffect::Lighting

This enum provides a lighting direction specification.

See also:
KImageEffect::hash()

Enumeration values:

NorthLite Lighting from the top of the image.

NWLite Lighting from the top left of the image.

WestLite Lighting from the left of the image.

SWLite Lighting from the bottom left of the image.

SouthLite Lighting from the bottom of the image.

SELite Lighting from the bottom right of the image.

EastLite Lighting from the right of the image.

NELite Lighting from the top right of the image.

Definition at line 82 of file kimageeffect.h.

enum KImageEffect::ModulationType

This enum provides a modulation type specification.

See also:
KImageEffect::modulate()

Enumeration values:

Intensity Modulate image intensity.

Saturation Modulate image saturation.

HueShift Modulate image hue.

Contrast Modulate image contrast.

Definition at line 96 of file kimageeffect.h.

enum KImageEffect::NoiseType

This enum provides a noise type specification.

See also:
KImageEffect::addNoise()

Enumeration values:

UniformNoise Uniform distribution.

GaussianNoise Gaussian distribution.

MultiplicativeGaussianNoise Multiplicative Gaussian distribution.

ImpulseNoise Impulse distribution.

LaplacianNoise Laplacian distribution.

PoissonNoise Poisson distribution.

Definition at line 106 of file kimageeffect.h.

enum KImageEffect::RotateDirection

This enum provides a rotation specification.

See also:
KImageEffect::rotate()

Enumeration values:

Rotate90 Rotate 90 degrees to the right.

Rotate180 Rotate 180 degrees.

Rotate270 Rotate 90 degrees to the left.

Definition at line 118 of file kimageeffect.h.

enum KImageEffect::Disposition

Disposition of a source image on top of a destination image.

See also:
KImageEffect::computeDestinationRect, KImageEffect::blendOnLower

Since:
3.2

Enumeration values:

NoImage Don't overlay.

Centered Center top image on botton image.

Tiled Tile top image on bottom image.

CenterTiled Center and tile top image on bottom image.

CenteredMaxpect Center and scale aspect.

TiledMaxpect Tile and scale aspect.

Scaled Scale.

CenteredAutoFit Center and scale or scale aspect.

Definition at line 314 of file kimageeffect.h.

Member Function Documentation

QImage KImageEffect::gradient ( const QSize & size,

const QColor & ca,

const QColor & cb,

GradientType type,

int ncols = 3

) [static]

Create a gradient from color a to color b of the specified type.

Parameters:

size The desired size of the gradient.

ca Color a

cb Color b

type The type of gradient.

ncols The number of colors to use when not running on a truecolor display. The gradient will be dithered to this number of colors. Pass 0 to prevent dithering.

Definition at line 103 of file kimageeffect.cpp.
References QColor::blue(), QPixmap::defaultDepth(), dither(), QColor::green(), QSize::height(), QColor::red(), QImage::scanLine(), QColor::setRgb(), and QSize::width().
Referenced by KPixmapEffect::gradient().

QImage KImageEffect::unbalancedGradient ( const QSize & size,

const QColor & ca,

const QColor & cb,

GradientType type,

int xfactor = 100,

int yfactor = 100,

int ncols = 3

) [static]

Create an unbalanced gradient.
An unbalanced gradient is a gradient where the transition from color a to color b is not linear, but in this case, exponential.

Parameters:

size The desired size of the gradient.

ca Color a

cb Color b

type The type of gradient.

xfactor The x decay length. Use a value between -200 and 200.

yfactor The y decay length.

ncols The number of colors. See KImageEffect:gradient.

Definition at line 367 of file kimageeffect.cpp.
References QColor::blue(), QPixmap::defaultDepth(), dither(), QColor::green(), QSize::height(), QColor::red(), QColor::rgb(), QImage::scanLine(), QColor::setRgb(), and QSize::width().
Referenced by blend(), and KPixmapEffect::unbalancedGradient().

QImage & KImageEffect::blend ( const QColor & clr,

QImage & dst,

float opacity

) [static]

Blends a color into the destination image, using an opacity value for blending one into another.
Very fast direct pixel manipulation is used.
This function uses MMX and SSE2 instructions to blend the image on processors that support it.

Parameters:

clr source color to be blended into the destination image.

dst destination image in which the source will be blended into.

opacity opacity (between 0.0 and 1.0) which determines how much the source color will be blended into the destination image.

Returns:
The destination image (dst) containing the result.

Author:
Karol Szwed (gallium@kde.org)
Fredrik Höglund (fredrik@kde.org)

Definition at line 1046 of file kimageeffect.cpp.
References QImage::bits(), QColor::blue(), QImage::convertDepth(), QImage::depth(), QColor::green(), KCPUInfo::haveExtension(), QImage::height(), QColor::red(), QColor::rgb(), and QImage::width().
Referenced by KPixmapEffect::blend(), blend(), and selectedImage().

QImage & KImageEffect::blend ( QImage & src,

QImage & dst,

float opacity

) [static]

Blend the src image into the destination image, using an opacity value for blending one into another.
Very fast direct pixel manipulation is used.
This function uses MMX and SSE2 instructions to blend the images on processors that support it.

Parameters:

src source image to be blended into the destination image.

dst destination image in which the source will be blended into.

opacity opacity (between 0.0 and 1.0) which determines how much the source image will be blended into the destination image.

Returns:
The destination image (dst) containing the result.

Author:
Karol Szwed (gallium@kde.org)
Fredrik Höglund (fredrik@kde.org)

Definition at line 1287 of file kimageeffect.cpp.
References QImage::bits(), QImage::convertDepth(), QImage::depth(), KCPUInfo::haveExtension(), QImage::height(), and QImage::width().

QImage & KImageEffect::blend ( QImage & image,

float initial_intensity,

const QColor & bgnd,

GradientType eff,

bool anti_dir = false

) [static]

Blend the provided image into a background of the indicated color.

Parameters:

initial_intensity this parameter takes values from -1 to 1: a) if positive: how much to fade the image in its less affected spot b) if negative: roughly indicates how much of the image remains unaffected

bgnd indicates the color of the background to blend in

eff lets you choose what kind of blending you like

anti_dir blend in the opposite direction (makes no much sense with concentric blending effects)

image must be 32bpp

Definition at line 1516 of file kimageeffect.cpp.
References QImage::bits(), QColor::blue(), QImage::depth(), QColor::green(), QImage::height(), intensity(), QColor::red(), and QImage::width().

QImage & KImageEffect::blend ( QImage & image1,

QImage & image2,

GradientType gt,

int xf = 100,

int yf = 100

) [static]

Blend an image into another one, using a gradient type for blending from one to another.

Parameters:

image1 source1 and result of blending

image2 source2 of blending

gt gradient type for blending between source1 and source2

xf x decay length for unbalanced gradient tpye

yf y decay length for unbalanced gradient tpye

Definition at line 1724 of file kimageeffect.cpp.
References blend(), QImage::height(), Red, QImage::size(), unbalancedGradient(), and QImage::width().

QImage & KImageEffect::blend ( QImage & image1,

QImage & image2,

QImage & blendImage,

RGBComponent channel

) [static]

Blend an image into another one, using a color channel of a third image for the decision of blending from one to another.

Parameters:

image1 Source 1 and result of blending

image2 Source 2 of blending

blendImage If the gray value of of pixel is 0, the result for this pixel is that of image1; for a gray value of 1, the pixel of image2 is used; for a value in between, a corresponding blending is used.

channel The RBG channel to use for the blending decision.

Definition at line 1742 of file kimageeffect.cpp.
References QImage::bits(), Blue, QImage::colorTable(), QImage::convertDepth(), QImage::depth(), Green, QImage::height(), Red, and QImage::width().

bool KImageEffect::blend ( const QImage & upper,

const QImage & lower,

QImage & output

) [static]

Blend an image into another one, using alpha in the expected way.

Parameters:

upper the "upper" image

lower the "lower" image

output the target image

Author:
Rik Hemsley (rikkus) <rik@kde.org>

Definition at line 2345 of file kimageeffect.cpp.
References QImage::copy(), QImage::depth(), QImage::height(), QImage::scanLine(), and QImage::width().

bool KImageEffect::blend ( int & x,

int & y,

const QImage & upper,

const QImage & lower,

QImage & output

) [static]

Blend an image into another one, using alpha in the expected way and over coordinates x and y with respect to the lower image.
The output is a QImage which is the upper image already blended with the lower one, so its size will be (in general) the same than upper instead of the same size than lower like the method above. In fact, the size of output is like upper's one only when it can be painted on lower, if there has to be some clipping, output's size will be the clipped area and x and y will be set to the correct up-left corner where the clipped rectangle begins.
Parameters:

x x-coordinate of lower image

y y-coordinate of lower image

upper the "upper" image

lower the "lower" image

output the target image

Definition at line 2417 of file kimageeffect.cpp.
References QImage::create(), QImage::depth(), QImage::height(), QImage::scanLine(), and QImage::width().

bool KImageEffect::blendOnLower ( int x,

int y,

const QImage & upper,

const QImage & lower

) [static]

Blend an image into another one, using alpha in the expected way and over coordinates x and y with respect to the lower image.
The output is painted in the own lower image. This is an optimization of the blend method above provided by convenience.
Parameters:

x x-coordinate of lower image

y y-coordinate of lower image

upper the "upper" image

lower the "lower" image, which becomes the output image

Definition at line 2481 of file kimageeffect.cpp.
References QImage::depth(), QImage::height(), QImage::scanLine(), and QImage::width().
Referenced by blendOnLower().

void KImageEffect::blendOnLower ( const QImage & upper,

const QPoint & upperOffset,

QImage & lower,

const QRect & lowerRect

) [static]

Blend part of an image into part of another, using the alpha channel in the expected way.
Note that the destination rectangle will be correctly clipped.

Parameters:

upper the "upper" image

upperOffset Offset for the part of the upper image to be used.

lower the "lower" image

lowerRect Rectangle for the part of the lower image where the blending will occur.

Since:
3.2

Definition at line 2551 of file kimageeffect.cpp.
References QImage::height(), QRect::height(), QRect::isValid(), QImage::rect(), QImage::scanLine(), QRect::setHeight(), QRect::setWidth(), QImage::width(), QRect::width(), QRect::x(), QPoint::x(), QRect::y(), and QPoint::y().

void KImageEffect::blendOnLower ( const QImage & upper,

const QPoint & upperOffset,

QImage & lower,

const QRect & lowerRect,

float opacity

) [static]

Blend part of an image into part of another, using the opacity value and the alpha channel in the expected way.
Note that the destination rectangle will be correctly clipped.

Parameters:

upper the "upper" image

upperOffset Offset for the part of the upper image to be used.

lower the "lower" image

lowerRect Rectangle for the part of the lower image where the blending will occur.

opacity Opacity (between 0.0 and 1.0) which determines how much the source image will be blended into the destination image.

Since:
3.2

Definition at line 2573 of file kimageeffect.cpp.
References QImage::height(), QRect::height(), QRect::isValid(), QImage::rect(), QImage::scanLine(), QRect::setHeight(), QRect::setWidth(), QImage::width(), QRect::width(), QRect::x(), QPoint::x(), QRect::y(), and QPoint::y().

QRect KImageEffect::computeDestinationRect ( const QSize & lowerSize,

Disposition disposition,

QImage & upper

) [static]

Compute the destination rectangle where to draw the upper image on top of another image using the given disposition.
For tiled disposition, the rectangle should be duplicated on the whole area to obtained the wanted effect.

Parameters:

lowerSize The size of the destination image.

disposition The wanted disposition.

upper The upper image. Note that this image may be scaled to adjust to the requested disposition.

Returns:
the computed rectangle. Its size may exceed lowerSize.

Since:
3.2

Definition at line 2595 of file kimageeffect.cpp.
References Centered, CenteredAutoFit, CenteredMaxpect, CenterTiled, QImage::height(), QSize::height(), NoImage, Scaled, QRect::setCoords(), QRect::setRect(), QImage::smoothScale(), Tiled, TiledMaxpect, QImage::width(), and QSize::width().
Referenced by blendOnLower().

void KImageEffect::blendOnLower ( QImage & upper,

QImage & lower,

Disposition disposition,

float opacity

) [static]

Blend an image on top of another using a given disposition and a given opacity.
The alpha channel of the upper image is used in the expected way. Beware the upper image may be modified.
Since:
3.2

Definition at line 2660 of file kimageeffect.cpp.
References blendOnLower(), QRect::bottom(), computeDestinationRect(), QImage::height(), QRect::left(), QRect::right(), QImage::size(), QRect::top(), and QImage::width().

QImage & KImageEffect::channelIntensity ( QImage & image,

float percent,

RGBComponent channel

) [static]

Modifies the intensity of a pixmap's RGB channel component.

Parameters:

image The QImage to process.

percent Percent value. Use a negative value to dim.

channel Which channel(s) should be modified

Returns:
The image, provided for convenience.

Author:
Daniel M. Duley (mosfet)

Definition at line 825 of file kimageeffect.cpp.
References QImage::bits(), QImage::colorTable(), QImage::depth(), Green, QImage::height(), QImage::numColors(), Red, and QImage::width().
Referenced by KPixmapEffect::channelIntensity().

QImage & KImageEffect::fade ( QImage & image,

float val,

const QColor & color

) [static]

Fade an image to a certain background color.
The number of colors will not be changed.

Parameters:

image The QImage to process.

val The strength of the effect. 0 <= val <= 1.

color The background color.

Returns:
Returns the image(), provided for convenience.

Definition at line 2023 of file kimageeffect.cpp.
References QColor::blue(), QImage::color(), QImage::depth(), QColor::green(), QImage::height(), QImage::numColors(), QColor::red(), QImage::scanLine(), QImage::setColor(), and QImage::width().
Referenced by KPixmapEffect::fade().

QImage & KImageEffect::flatten ( QImage & image,

const QColor & ca,

const QColor & cb,

int ncols = 0

) [static]

This recolors a pixmap.
The most dark color will become color a, the most bright one color b, and in between.

Parameters:

image A QImage to process.

ca Color a

cb Color b

ncols The number of colors to dither the image to. Pass 0 to prevent dithering.

Definition at line 1926 of file kimageeffect.cpp.
References QColor::blue(), QImage::color(), QImage::depth(), dither(), QColor::green(), QImage::height(), QImage::numColors(), QImage::pixel(), QColor::red(), QColor::rgb(), QImage::setColor(), QImage::setPixel(), and QImage::width().
Referenced by KPixmapEffect::pattern().

QImage & KImageEffect::hash ( QImage & image,

Lighting lite = NorthLite,

unsigned int spacing = 0

) [static]

Build a hash on any given QImage.

Parameters:

image The QImage to process

lite The hash faces the indicated lighting (cardinal poles).

spacing How many unmodified pixels in between hashes.

Returns:
Returns the image(), provided for convenience.

Definition at line 1845 of file kimageeffect.cpp.
References QImage::bits(), EastLite, QImage::height(), NELite, NorthLite, NWLite, SELite, SouthLite, SWLite, WestLite, and QImage::width().
Referenced by KPixmapEffect::hash().

QImage & KImageEffect::intensity ( QImage & image,

float percent

) [static]

Either brighten or dim the image by a specified percent.
For example, .50 will modify the colors by 50%.
This function uses MMX instructions to process the image on processors that support it.

Parameters:

image The QImage to process.

percent The percent value. Use a negative value to dim.

Returns:
Returns The image(), provided for convenience.

Author:
Daniel M. Duley (mosfet)
Benjamin Roe (ben@benroe.com)

Definition at line 633 of file kimageeffect.cpp.
References QImage::bits(), QImage::colorTable(), QImage::depth(), KCPUInfo::haveExtension(), QImage::height(), QImage::numColors(), and QImage::width().
Referenced by blend(), and KPixmapEffect::intensity().

QImage & KImageEffect::modulate ( QImage & image,

QImage & modImage,

bool reverse,

ModulationType type,

int factor,

RGBComponent channel

) [static]

Modulate the image with a color channel of another image.

Parameters:

image The QImage to modulate and result.

modImage The QImage to use for modulation.

reverse Invert the meaning of image/modImage; result is image!

type The modulation Type to use.

factor The modulation amplitude; with 0 no effect [-200;200].

channel The RBG channel of image2 to use for modulation.

Returns:
Returns the image(), provided for convenience.

Definition at line 916 of file kimageeffect.cpp.
References All, Blue, QImage::colorTable(), Contrast, QImage::convertDepth(), QImage::depth(), Gray, Green, QImage::height(), HueShift, Intensity, Red, QColor::rgb(), Saturation, QImage::scanLine(), QColor::setHsv(), QColor::setRgb(), and QImage::width().

QImage & KImageEffect::toGray ( QImage & image,

bool fast = false

) [static]

Convert an image to grayscale.

Parameters:

image The QImage to process.

fast Set to true in order to use a faster but non-photographic quality algorithm. Appropriate for things such as toolbar icons.

Returns:
Returns the image(), provided for convenience.

Author:
Daniel M. Duley (mosfet)

Definition at line 2105 of file kimageeffect.cpp.
References


Public Types
enum	GradientType { VerticalGradient, HorizontalGradient, DiagonalGradient, CrossDiagonalGradient, PyramidGradient, RectangleGradient, PipeCrossGradient, EllipticGradient }
enum	RGBComponent { Red, Green, Blue, Gray, All }
enum	Lighting { NorthLite, NWLite, WestLite, SWLite, SouthLite, SELite, EastLite, NELite }
enum	ModulationType { Intensity, Saturation, HueShift, Contrast }
enum	NoiseType { UniformNoise = 0, GaussianNoise, MultiplicativeGaussianNoise, ImpulseNoise, LaplacianNoise, PoissonNoise }
enum	RotateDirection { Rotate90, Rotate180, Rotate270 }
enum	Disposition { NoImage = 0, Centered, Tiled, CenterTiled, CenteredMaxpect, TiledMaxpect, Scaled, CenteredAutoFit }
Static Public Member Functions
QImage	gradient (const QSize &size, const QColor &ca, const QColor &cb, GradientType type, int ncols=3)
QImage	unbalancedGradient (const QSize &size, const QColor &ca, const QColor &cb, GradientType type, int xfactor=100, int yfactor=100, int ncols=3)
QImage &	blend (const QColor &clr, QImage &dst, float opacity)
QImage &	blend (QImage &src, QImage &dst, float opacity)
QImage &	blend (QImage &image, float initial_intensity, const QColor &bgnd, GradientType eff, bool anti_dir=false)
QImage &	blend (QImage &image1, QImage &image2, GradientType gt, int xf=100, int yf=100)
QImage &	blend (QImage &image1, QImage &image2, QImage &blendImage, RGBComponent channel)
bool	blend (const QImage &upper, const QImage &lower, QImage &output)
bool	blend (int &x, int &y, const QImage &upper, const QImage &lower, QImage &output)
bool	blendOnLower (int x, int y, const QImage &upper, const QImage &lower)
void	blendOnLower (const QImage &upper, const QPoint &upperOffset, QImage &lower, const QRect &lowerRect)
void	blendOnLower (const QImage &upper, const QPoint &upperOffset, QImage &lower, const QRect &lowerRect, float opacity)
QRect	computeDestinationRect (const QSize &lowerSize, Disposition disposition, QImage &upper)
void	blendOnLower (QImage &upper, QImage &lower, Disposition disposition, float opacity)
QImage &	channelIntensity (QImage &image, float percent, RGBComponent channel)
QImage &	fade (QImage &image, float val, const QColor &color)
QImage &	flatten (QImage &image, const QColor &ca, const QColor &cb, int ncols=0)
QImage &	hash (QImage &image, Lighting lite=NorthLite, unsigned int spacing=0)
QImage &	intensity (QImage &image, float percent)
QImage &	modulate (QImage &image, QImage &modImage, bool reverse, ModulationType type, int factor, RGBComponent channel)
QImage &	toGray (QImage &image, bool fast=false)
QImage &	desaturate (QImage &image, float desat=0.3)
QImage &	contrast (QImage &image, int c)
QImage &	dither (QImage &image, const QColor *palette, int size)
QImage &	selectedImage (QImage &img, const QColor &col)
void	contrastHSV (QImage &img, bool sharpen=true)
void	normalize (QImage &img)
void	equalize (QImage &img)
void	threshold (QImage &img, unsigned int value=128)
void	solarize (QImage &img, double factor=50.0)
QImage	emboss (QImage &src, double radius, double sigma)
QImage	emboss (QImage &src)
QImage	despeckle (QImage &src)
QImage	charcoal (QImage &src, double radius, double sigma)
QImage	charcoal (QImage &src, double factor=50.0)
QImage	rotate (QImage &src, RotateDirection r)
QImage	sample (QImage &src, int w, int h)
QImage	addNoise (QImage &src, NoiseType type=GaussianNoise)
QImage	blur (QImage &src, double radius, double sigma)
QImage	blur (QImage &src, double factor=50.0)
QImage	edge (QImage &src, double radius)
QImage	implode (QImage &src, double factor=30.0, unsigned int background=0xFFFFFFFF)
QImage	oilPaintConvolve (QImage &src, double radius)
QImage	oilPaint (QImage &src, int radius=3)
QImage	sharpen (QImage &src, double radius, double sigma)
QImage	sharpen (QImage &src, double factor=30.0)
QImage	spread (QImage &src, unsigned int amount=3)
QImage	shade (QImage &src, bool color_shading=true, double azimuth=30.0, double elevation=30.0)
QImage	swirl (QImage &src, double degrees=50.0, unsigned int background=0xFFFFFFFF)
QImage	wave (QImage &src, double amplitude=25.0, double frequency=150.0, unsigned int background=0xFFFFFFFF)

kdefx Library API Documentation

KImageEffect Class Reference

Public Types

Static Public Member Functions

Detailed Description

Member Enumeration Documentation

Member Function Documentation