Package org.apache.xmlgraphics.image.codec.tiff

Class TIFFImageDecoder

java.lang.Object

org.apache.xmlgraphics.image.codec.util.ImageDecoderImpl

org.apache.xmlgraphics.image.codec.tiff.TIFFImageDecoder

All Implemented Interfaces:

ImageDecoder

public class TIFFImageDecoder
extends ImageDecoderImpl

A baseline TIFF reader. The reader has some functionality in addition to the baseline specifications for Bilevel images, for which the group 3 and group 4 decompression schemes have been implemented. Support for LZW decompression has also been added. Support for Horizontal differencing predictor decoding is also included, when used with LZW compression. However, this support is limited to data with bitsPerSample value of 8. When reading in RGB images, support for alpha and extraSamples being present has been added. Support for reading in images with 16 bit samples has been added. Support for the SampleFormat tag (signed samples as well as floating-point samples) has also been added. In all other cases, support is limited to Baseline specifications.

Field Summary

Fields

Modifier and Type	Field	Description
static int	TIFF_BITS_PER_SAMPLE
static int	TIFF_COLORMAP
static int	TIFF_COMPRESSION
static int	TIFF_EXTRA_SAMPLES
static int	TIFF_FILL_ORDER
static int	TIFF_ICC_PROFILE
static int	TIFF_IMAGE_LENGTH
static int	TIFF_IMAGE_WIDTH
static int	TIFF_PHOTOMETRIC_INTERPRETATION
static int	TIFF_PLANAR_CONFIGURATION
static int	TIFF_PREDICTOR
static int	TIFF_RESOLUTION_UNIT
static int	TIFF_ROWS_PER_STRIP
static int	TIFF_S_MAX_SAMPLE_VALUE
static int	TIFF_S_MIN_SAMPLE_VALUE
static int	TIFF_SAMPLE_FORMAT
static int	TIFF_SAMPLES_PER_PIXEL
static int	TIFF_STRIP_BYTE_COUNTS
static int	TIFF_STRIP_OFFSETS
static int	TIFF_T4_OPTIONS
static int	TIFF_T6_OPTIONS
static int	TIFF_TILE_BYTE_COUNTS
static int	TIFF_TILE_LENGTH
static int	TIFF_TILE_OFFSETS
static int	TIFF_TILE_WIDTH
static int	TIFF_X_RESOLUTION
static int	TIFF_Y_RESOLUTION

Fields inherited from class org.apache.xmlgraphics.image.codec.util.ImageDecoderImpl

input, param

Constructor Summary

Constructors

Constructor	Description
TIFFImageDecoder(SeekableStream input, TIFFDecodeParam param)

Method Summary

Modifier and Type	Method	Description
java.awt.image.RenderedImage	decodeAsRenderedImage(int page)	Returns a RenderedImage that contains the decoded contents of the SeekableStream associated with this ImageDecoder.
int	getNumPages()	Returns the number of pages present in the current stream.

Methods inherited from class org.apache.xmlgraphics.image.codec.util.ImageDecoderImpl

decodeAsRaster, decodeAsRaster, decodeAsRenderedImage, getInputStream, getParam, setParam

Methods inherited from class java.lang.Object

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

Field Detail

TIFF_IMAGE_WIDTH

public static final int TIFF_IMAGE_WIDTH

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Constant Field Values

TIFF_IMAGE_LENGTH

public static final int TIFF_IMAGE_LENGTH

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Constant Field Values

TIFF_BITS_PER_SAMPLE

public static final int TIFF_BITS_PER_SAMPLE

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Constant Field Values

TIFF_COMPRESSION

public static final int TIFF_COMPRESSION

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Constant Field Values

TIFF_PHOTOMETRIC_INTERPRETATION

public static final int TIFF_PHOTOMETRIC_INTERPRETATION

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Constant Field Values

TIFF_FILL_ORDER

public static final int TIFF_FILL_ORDER

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Constant Field Values

TIFF_STRIP_OFFSETS

public static final int TIFF_STRIP_OFFSETS

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Constant Field Values

TIFF_SAMPLES_PER_PIXEL

public static final int TIFF_SAMPLES_PER_PIXEL

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Constant Field Values

TIFF_ROWS_PER_STRIP

public static final int TIFF_ROWS_PER_STRIP

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Constant Field Values

TIFF_STRIP_BYTE_COUNTS

public static final int TIFF_STRIP_BYTE_COUNTS

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Constant Field Values

TIFF_X_RESOLUTION

public static final int TIFF_X_RESOLUTION

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Constant Field Values

TIFF_Y_RESOLUTION

public static final int TIFF_Y_RESOLUTION

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Constant Field Values

TIFF_PLANAR_CONFIGURATION

public static final int TIFF_PLANAR_CONFIGURATION

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Constant Field Values

TIFF_T4_OPTIONS

public static final int TIFF_T4_OPTIONS

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Constant Field Values

TIFF_T6_OPTIONS

public static final int TIFF_T6_OPTIONS

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Constant Field Values

TIFF_RESOLUTION_UNIT

public static final int TIFF_RESOLUTION_UNIT

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Constant Field Values

TIFF_PREDICTOR

public static final int TIFF_PREDICTOR

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Constant Field Values

TIFF_COLORMAP

public static final int TIFF_COLORMAP

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Constant Field Values

TIFF_TILE_WIDTH

public static final int TIFF_TILE_WIDTH

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Constant Field Values

TIFF_TILE_LENGTH

public static final int TIFF_TILE_LENGTH

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Constant Field Values

TIFF_TILE_OFFSETS

public static final int TIFF_TILE_OFFSETS

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Constant Field Values

TIFF_TILE_BYTE_COUNTS

public static final int TIFF_TILE_BYTE_COUNTS

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Constant Field Values

TIFF_EXTRA_SAMPLES

public static final int TIFF_EXTRA_SAMPLES

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Constant Field Values

TIFF_SAMPLE_FORMAT

public static final int TIFF_SAMPLE_FORMAT

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Constant Field Values

TIFF_S_MIN_SAMPLE_VALUE

public static final int TIFF_S_MIN_SAMPLE_VALUE

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Constant Field Values

TIFF_S_MAX_SAMPLE_VALUE

public static final int TIFF_S_MAX_SAMPLE_VALUE

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Constant Field Values

TIFF_ICC_PROFILE

public static final int TIFF_ICC_PROFILE

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Constant Field Values

Constructor Detail

TIFFImageDecoder

public TIFFImageDecoder(SeekableStream input,
                        TIFFDecodeParam param)

Method Detail

getNumPages

public int getNumPages()
                throws java.io.IOException

Description copied from class: ImageDecoderImpl

Returns the number of pages present in the current stream. By default, the return value is 1. Subclasses that deal with multi-page formats should override this method.

Specified by:

getNumPages in interface ImageDecoder

Overrides:

getNumPages in class ImageDecoderImpl

Throws:

java.io.IOException

decodeAsRenderedImage

public java.awt.image.RenderedImage decodeAsRenderedImage(int page)
                                                   throws java.io.IOException

Description copied from class: ImageDecoderImpl

Returns a RenderedImage that contains the decoded contents of the SeekableStream associated with this ImageDecoder. The given page of a multi-page image is decoded. If the page does not exist, an IOException will be thrown. Page numbering begins at zero.

Specified by:

decodeAsRenderedImage in interface ImageDecoder

Specified by:

decodeAsRenderedImage in class ImageDecoderImpl

Parameters:

page - The page to be decoded.

Throws:

java.io.IOException