org.esa.beam.util
Class ImageUtils

java.lang.Object
  org.esa.beam.util.ImageUtils

public class ImageUtils
extends Object

A utility class providing a set of static functions frequently used when working with images.

All functions have been implemented with extreme caution in order to provide a maximum performance.

Version:

$Revision$ $Date$

Author:

Norman Fomferra

Constructor Summary

ImageUtils()

Method Summary

static BufferedImage	convertImage(RenderedImage image, int imageType) Converts the given rendered image into an image of the given {#link java.awt.image.BufferedImage} type.
static ColorModel	create8BitGreyscaleColorModel()
static Object	createDataBufferArray(int dataBufferType, int size)
static BufferedImage	createGreyscaleColorModelImage(int width, int height, byte[] data)
static BufferedImage	createIndexedImage(int width, int height, byte[] data, IndexColorModel cm)
static RenderedImage	createRenderedImage(int width, int height, ProductData data)
static SampleModel	createSingleBandedSampleModel(int dataBufferType, int width, int height)
static String	getColorSpaceName(int spaceType) Gets a textual representation of the supplied color space type
static double[]	getDataTypeMinMax(int dataType, double[] minmax) Returns an array containing the minimum and maximum value of the native data type used to store pixel values in the given image.
static String	getDataTypeName(int dataType) Gets a textual representation of the supplied raster data type
static Object	getPrimitiveArray(DataBuffer dataBuffer)

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageUtils

public ImageUtils()

Method Detail

convertImage

public static BufferedImage convertImage(RenderedImage image,
                                         int imageType)

Converts the given rendered image into an image of the given {#link java.awt.image.BufferedImage} type.

Parameters:

image - the source image

imageType - the {#link java.awt.image.BufferedImage} type

Returns:

the buffered image of the given type

getDataTypeMinMax

public static double[] getDataTypeMinMax(int dataType,
                                         double[] minmax)

Returns an array containing the minimum and maximum value of the native data type used to store pixel values in the given image.

Parameters:

dataType - a data type as defined in DataBuffer

See Also:

DataBuffer

getDataTypeName

public static String getDataTypeName(int dataType)

Gets a textual representation of the supplied raster data type

Parameters:

dataType - a data type as defined in DataBuffer

Returns:

a textual representation of the supplied raster data type

See Also:

DataBuffer

getColorSpaceName

public static String getColorSpaceName(int spaceType)

Gets a textual representation of the supplied color space type

Parameters:

spaceType - a dcolor space type as defined in ColorSpace

Returns:

a textual representation of the color space

See Also:

ColorSpace

createGreyscaleColorModelImage

public static BufferedImage createGreyscaleColorModelImage(int width,
                                                           int height,
                                                           byte[] data)

createIndexedImage

public static BufferedImage createIndexedImage(int width,
                                               int height,
                                               byte[] data,
                                               IndexColorModel cm)

create8BitGreyscaleColorModel

public static ColorModel create8BitGreyscaleColorModel()

getPrimitiveArray

public static Object getPrimitiveArray(DataBuffer dataBuffer)

createDataBufferArray

public static Object createDataBufferArray(int dataBufferType,
                                           int size)

createSingleBandedSampleModel

public static SampleModel createSingleBandedSampleModel(int dataBufferType,
                                                        int width,
                                                        int height)

createRenderedImage

public static RenderedImage createRenderedImage(int width,
                                                int height,
                                                ProductData data)