com.twelvemonkeys.imageio.util

Class RasterUtils

java.lang.Object

com.twelvemonkeys.imageio.util.RasterUtils

public final class RasterUtils
extends Object

A class containing various raster utility methods.

Method Summary

Modifier and Type	Method and Description
static Raster	asByteRaster(Raster raster) Returns a raster with DataBuffer.TYPE_BYTE transfer type.
static WritableRaster	asByteRaster(WritableRaster raster) Returns a writable raster with DataBuffer.TYPE_BYTE transfer type.

Methods inherited from class java.lang.Object

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

Method Detail

asByteRaster

public static Raster asByteRaster(Raster raster)

Returns a raster with DataBuffer.TYPE_BYTE transfer type. Works for any raster from a BufferedImage.TYPE_INT_* image

Parameters:

raster - a Raster with either transfer type DataBuffer.TYPE_BYTE or DataBuffer.TYPE_INT with `SinglePixelPackedSampleModel`, not null.

Returns:

a raster with DataBuffer.TYPE_BYTE transfer type.

Throws:

IllegalArgumentException - if raster does not have transfer type DataBuffer.TYPE_BYTE or DataBuffer.TYPE_INT with `SinglePixelPackedSampleModel`

NullPointerException - if raster is null.

asByteRaster

public static WritableRaster asByteRaster(WritableRaster raster)

Returns a writable raster with DataBuffer.TYPE_BYTE transfer type. Works for any raster from a BufferedImage.TYPE_INT_* image.

Parameters:

raster - a WritableRaster with either transfer type DataBuffer.TYPE_BYTE or DataBuffer.TYPE_INT with `SinglePixelPackedSampleModel`, not null.

Returns:

a writable raster with DataBuffer.TYPE_BYTE transfer type.

Throws:

IllegalArgumentException - if raster does not have transfer type DataBuffer.TYPE_BYTE or DataBuffer.TYPE_INT with `SinglePixelPackedSampleModel`

NullPointerException - if raster is null.