org.apache.batik.ext.awt.image.codec.tiff
Class TIFFImageDecoder

java.lang.Object
  |
  +--org.apache.batik.ext.awt.image.codec.ImageDecoderImpl
        |
        +--org.apache.batik.ext.awt.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

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_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.batik.ext.awt.image.codec.ImageDecoderImpl

input, param

Constructor Summary

TIFFImageDecoder(SeekableStream input, ImageDecodeParam param)

Method Summary

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.batik.ext.awt.image.codec.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

TIFF_IMAGE_LENGTH

public static final int TIFF_IMAGE_LENGTH

TIFF_BITS_PER_SAMPLE

public static final int TIFF_BITS_PER_SAMPLE

TIFF_COMPRESSION

public static final int TIFF_COMPRESSION

TIFF_PHOTOMETRIC_INTERPRETATION

public static final int TIFF_PHOTOMETRIC_INTERPRETATION

TIFF_FILL_ORDER

public static final int TIFF_FILL_ORDER

TIFF_STRIP_OFFSETS

public static final int TIFF_STRIP_OFFSETS

TIFF_SAMPLES_PER_PIXEL

public static final int TIFF_SAMPLES_PER_PIXEL

TIFF_ROWS_PER_STRIP

public static final int TIFF_ROWS_PER_STRIP

TIFF_STRIP_BYTE_COUNTS

public static final int TIFF_STRIP_BYTE_COUNTS

TIFF_X_RESOLUTION

public static final int TIFF_X_RESOLUTION

TIFF_Y_RESOLUTION

public static final int TIFF_Y_RESOLUTION

TIFF_PLANAR_CONFIGURATION

public static final int TIFF_PLANAR_CONFIGURATION

TIFF_T4_OPTIONS

public static final int TIFF_T4_OPTIONS

TIFF_T6_OPTIONS

public static final int TIFF_T6_OPTIONS

TIFF_RESOLUTION_UNIT

public static final int TIFF_RESOLUTION_UNIT

TIFF_PREDICTOR

public static final int TIFF_PREDICTOR

TIFF_COLORMAP

public static final int TIFF_COLORMAP

TIFF_TILE_WIDTH

public static final int TIFF_TILE_WIDTH

TIFF_TILE_LENGTH

public static final int TIFF_TILE_LENGTH

TIFF_TILE_OFFSETS

public static final int TIFF_TILE_OFFSETS

TIFF_TILE_BYTE_COUNTS

public static final int TIFF_TILE_BYTE_COUNTS

TIFF_EXTRA_SAMPLES

public static final int TIFF_EXTRA_SAMPLES

TIFF_SAMPLE_FORMAT

public static final int TIFF_SAMPLE_FORMAT

TIFF_S_MIN_SAMPLE_VALUE

public static final int TIFF_S_MIN_SAMPLE_VALUE

TIFF_S_MAX_SAMPLE_VALUE

public static final int TIFF_S_MAX_SAMPLE_VALUE

Constructor Detail

TIFFImageDecoder

public TIFFImageDecoder(SeekableStream input,
                        ImageDecodeParam 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.

Overrides:

getNumPages in class ImageDecoderImpl

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.

Overrides:

decodeAsRenderedImage in class ImageDecoderImpl

Following copied from class: org.apache.batik.ext.awt.image.codec.ImageDecoderImpl

Parameters:

page - The page to be decoded.