Package org.jivesoftware.smackx.jingleold.mediaimpl.sshare.api

Class PixelUtils

java.lang.Object

org.jivesoftware.smackx.jingleold.mediaimpl.sshare.api.PixelUtils

public class PixelUtils
extends Object

Some more useful math functions for image processing. These are becoming obsolete as we move to Java2D. Use MiscComposite instead.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	ADD
static final int	ALPHA
static final int	ALPHA_TO_GRAY
static final int	AVERAGE
static final int	CLEAR
static final int	COLOR
static final int	DIFFERENCE
static final int	DISSOLVE
static final int	DST_IN
static final int	EXCHANGE
static final int	HUE
static final int	MAX
static final int	MIN
static final int	MULTIPLY
static final int	NORMAL
static final int	OVERLAY
static final int	REPLACE
static final int	SATURATION
static final int	SCREEN
static final int	SUBTRACT
static final int	VALUE

Constructor Summary

Constructors

Constructor	Description
PixelUtils()

Method Summary

Modifier and Type	Method	Description
static int	brightness(int rgb)
static int	clamp(int c)	Clamp a value to the range 0..255.
static int	combinePixels(int rgb1, int rgb2, int op)
static int	combinePixels(int rgb1, int rgb2, int op, int extraAlpha)
static int	combinePixels(int rgb1, int rgb2, int op, int extraAlpha, int channelMask)
static int	interpolate(int v1, int v2, float f)
static boolean	nearColors(int rgb1, int rgb2, int tolerance)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

REPLACE

public static final int REPLACE

See Also:

• Constant Field Values

NORMAL

public static final int NORMAL

See Also:

• Constant Field Values

MIN

public static final int MIN

See Also:

• Constant Field Values

MAX

public static final int MAX

See Also:

• Constant Field Values

ADD

public static final int ADD

See Also:

• Constant Field Values

SUBTRACT

public static final int SUBTRACT

See Also:

• Constant Field Values

DIFFERENCE

public static final int DIFFERENCE

See Also:

• Constant Field Values

MULTIPLY

public static final int MULTIPLY

See Also:

• Constant Field Values

HUE

public static final int HUE

See Also:

• Constant Field Values

SATURATION

public static final int SATURATION

See Also:

• Constant Field Values

VALUE

public static final int VALUE

See Also:

• Constant Field Values

COLOR

public static final int COLOR

See Also:

• Constant Field Values

SCREEN

public static final int SCREEN

See Also:

• Constant Field Values

AVERAGE

public static final int AVERAGE

See Also:

• Constant Field Values

OVERLAY

public static final int OVERLAY

See Also:

• Constant Field Values

CLEAR

public static final int CLEAR

See Also:

• Constant Field Values

EXCHANGE

public static final int EXCHANGE

See Also:

• Constant Field Values

DISSOLVE

public static final int DISSOLVE

See Also:

• Constant Field Values

DST_IN

public static final int DST_IN

See Also:

• Constant Field Values

ALPHA

public static final int ALPHA

See Also:

• Constant Field Values

ALPHA_TO_GRAY

public static final int ALPHA_TO_GRAY

See Also:

• Constant Field Values

Constructor Details

PixelUtils

public PixelUtils()

Method Details

clamp

public static int clamp(int c)

Clamp a value to the range 0..255.

Parameters:

c - the input integer.

Returns:

the output integer.

interpolate

public static int interpolate(int v1,
 int v2,
 float f)

brightness

public static int brightness(int rgb)

nearColors

public static boolean nearColors(int rgb1,
 int rgb2,
 int tolerance)

combinePixels

public static int combinePixels(int rgb1,
 int rgb2,
 int op)

combinePixels

public static int combinePixels(int rgb1,
 int rgb2,
 int op,
 int extraAlpha,
 int channelMask)

combinePixels

public static int combinePixels(int rgb1,
 int rgb2,
 int op,
 int extraAlpha)