Package org.apache.xmlgraphics.image.rendered

Class Any2LsRGBRed

java.lang.Object

org.apache.xmlgraphics.image.rendered.AbstractRed

org.apache.xmlgraphics.image.rendered.Any2LsRGBRed

All Implemented Interfaces:

java.awt.image.RenderedImage, CachableRed

public class Any2LsRGBRed
extends AbstractRed

This function will tranform an image from any colorspace into a luminance image. The alpha channel if any will be copied to the new image.

Version:

$Id: Any2LsRGBRed.java 1732018 2016-02-24 04:51:06Z gadams $ Originally authored by Thomas DeWeese.

Field Summary

Fields inherited from class org.apache.xmlgraphics.image.rendered.AbstractRed

bounds, cm, minTileX, minTileY, numXTiles, numYTiles, props, sm, srcs, tileGridXOff, tileGridYOff, tileHeight, tileWidth

Constructor Summary

Constructors

Constructor	Description
Any2LsRGBRed(CachableRed src)	Construct a luminace image from src.

Method Summary

Modifier and Type	Method	Description
java.awt.image.WritableRaster	copyData(java.awt.image.WritableRaster wr)
protected static java.awt.image.ColorModel	fixColorModel(CachableRed src)	This function 'fixes' the source's color model.
protected static java.awt.image.SampleModel	fixSampleModel(CachableRed src)	This function 'fixes' the source's sample model.
static double	sRGBToLsRGB(double value)

Methods inherited from class org.apache.xmlgraphics.image.rendered.AbstractRed

copyBand, copyToRaster, getBounds, getColorModel, getData, getData, getDependencyRegion, getDirtyRegion, getHeight, getMinTileX, getMinTileY, getMinX, getMinY, getNumXTiles, getNumYTiles, getProperty, getPropertyNames, getSampleModel, getSources, getTile, getTileGridXOffset, getTileGridYOffset, getTileHeight, getTileWidth, getWidth, getXTile, getYTile, init, init, makeTile, updateTileGridInfo

Methods inherited from class java.lang.Object

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

Constructor Detail

Any2LsRGBRed

public Any2LsRGBRed(CachableRed src)

Construct a luminace image from src.

Parameters:

src - The image to convert to a luminance image

Method Detail

sRGBToLsRGB

public static final double sRGBToLsRGB(double value)

copyData

public java.awt.image.WritableRaster copyData(java.awt.image.WritableRaster wr)

fixColorModel

protected static java.awt.image.ColorModel fixColorModel(CachableRed src)

This function 'fixes' the source's color model. Right now it just selects if it should have one or two bands based on if the source had an alpha channel.

fixSampleModel

protected static java.awt.image.SampleModel fixSampleModel(CachableRed src)

This function 'fixes' the source's sample model. Right now it just selects if it should have 3 or 4 bands based on if the source had an alpha channel.