j2d.filters
Class PixelUtils

java.lang.Object
  j2d.filters.PixelUtils

public class PixelUtils
extends java.lang.Object

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

Field Summary

static int	ADD
static int	ALPHA
static int	ALPHA_TO_GRAY
static int	AVERAGE
static int	CLEAR
static int	COLOR
static int	DIFFERENCE
static int	DISSOLVE
static int	DST_IN
static int	EXCHANGE
static int	HUE
static int	MAX
static int	MIN
static int	MULTIPLY
static int	NORMAL
static int	OVERLAY
static int	REPLACE
static int	SATURATION
static int	SCREEN
static int	SUBTRACT
static int	VALUE

Constructor Summary

PixelUtils()

Method Summary

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

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

Field Detail

REPLACE

public static final int REPLACE

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Constant Field Values

NORMAL

public static final int NORMAL

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MIN

public static final int MIN

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MAX

public static final int MAX

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ADD

public static final int ADD

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SUBTRACT

public static final int SUBTRACT

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DIFFERENCE

public static final int DIFFERENCE

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MULTIPLY

public static final int MULTIPLY

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HUE

public static final int HUE

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SATURATION

public static final int SATURATION

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VALUE

public static final int VALUE

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COLOR

public static final int COLOR

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SCREEN

public static final int SCREEN

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Constant Field Values

AVERAGE

public static final int AVERAGE

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OVERLAY

public static final int OVERLAY

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CLEAR

public static final int CLEAR

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EXCHANGE

public static final int EXCHANGE

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DISSOLVE

public static final int DISSOLVE

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DST_IN

public static final int DST_IN

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ALPHA

public static final int ALPHA

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Constant Field Values

ALPHA_TO_GRAY

public static final int ALPHA_TO_GRAY

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Constant Field Values

Constructor Detail

PixelUtils

public PixelUtils()

Method Detail

clamp

public static int clamp(int c)

Clamp a value to the range 0..255

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)