org.jscience.media.pictures.filters
Class PixelUtils

java.lang.Object
  org.jscience.media.pictures.filters.PixelUtils

public class PixelUtils
extends java.lang.Object

Some more useful math functions for image processing

Field Summary

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

Constructor Summary

PixelUtils()

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Detail

REPLACE

public static final int REPLACE

DOCUMENT ME!

See Also:

Constant Field Values

NORMAL

public static final int NORMAL

DOCUMENT ME!

See Also:

Constant Field Values

MIN

public static final int MIN

DOCUMENT ME!

See Also:

Constant Field Values

MAX

public static final int MAX

DOCUMENT ME!

See Also:

Constant Field Values

ADD

public static final int ADD

DOCUMENT ME!

See Also:

Constant Field Values

SUBTRACT

public static final int SUBTRACT

DOCUMENT ME!

See Also:

Constant Field Values

DIFFERENCE

public static final int DIFFERENCE

DOCUMENT ME!

See Also:

Constant Field Values

MULTIPLY

public static final int MULTIPLY

DOCUMENT ME!

See Also:

Constant Field Values

HUE

public static final int HUE

DOCUMENT ME!

See Also:

Constant Field Values

SATURATION

public static final int SATURATION

DOCUMENT ME!

See Also:

Constant Field Values

VALUE

public static final int VALUE

DOCUMENT ME!

See Also:

Constant Field Values

COLOR

public static final int COLOR

DOCUMENT ME!

See Also:

Constant Field Values

SCREEN

public static final int SCREEN

DOCUMENT ME!

See Also:

Constant Field Values

AVERAGE

public static final int AVERAGE

DOCUMENT ME!

See Also:

Constant Field Values

OVERLAY

public static final int OVERLAY

DOCUMENT ME!

See Also:

Constant Field Values

CLEAR

public static final int CLEAR

DOCUMENT ME!

See Also:

Constant Field Values

EXCHANGE

public static final int EXCHANGE

DOCUMENT ME!

See Also:

Constant Field Values

DISSOLVE

public static final int DISSOLVE

DOCUMENT ME!

See Also:

Constant Field Values

DST_IN

public static final int DST_IN

DOCUMENT ME!

See Also:

Constant Field Values

ALPHA

public static final int ALPHA

DOCUMENT ME!

See Also:

Constant Field Values

ALPHA_TO_GRAY

public static final int ALPHA_TO_GRAY

DOCUMENT ME!

See Also:

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

Parameters:

c - DOCUMENT ME!

Returns:

DOCUMENT ME!

interpolate

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

DOCUMENT ME!

Parameters:

v1 - DOCUMENT ME!

v2 - DOCUMENT ME!

f - DOCUMENT ME!

Returns:

DOCUMENT ME!

brightness

public static int brightness(int rgb)

DOCUMENT ME!

Parameters:

rgb - DOCUMENT ME!

Returns:

DOCUMENT ME!

nearColors

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

DOCUMENT ME!

Parameters:

rgb1 - DOCUMENT ME!

rgb2 - DOCUMENT ME!

tolerance - DOCUMENT ME!

Returns:

DOCUMENT ME!

combinePixels

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

DOCUMENT ME!

Parameters:

rgb1 - DOCUMENT ME!

rgb2 - DOCUMENT ME!

op - DOCUMENT ME!

Returns:

DOCUMENT ME!

combinePixels

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

DOCUMENT ME!

Parameters:

rgb1 - DOCUMENT ME!

rgb2 - DOCUMENT ME!

op - DOCUMENT ME!

extraAlpha - DOCUMENT ME!

channelMask - DOCUMENT ME!

Returns:

DOCUMENT ME!

combinePixels

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

DOCUMENT ME!

Parameters:

rgb1 - DOCUMENT ME!

rgb2 - DOCUMENT ME!

op - DOCUMENT ME!

extraAlpha - DOCUMENT ME!

Returns:

DOCUMENT ME!