Package com.itextpdf.text.pdf.codec

Class TiffImage

java.lang.Object

com.itextpdf.text.pdf.codec.TiffImage

public class TiffImage
extends Object

Reads TIFF images

Constructor Summary

Constructors

Constructor	Description
TiffImage()

Method Summary

Modifier and Type	Method	Description
static void	applyPredictor(byte[] uncompData, int predictor, int w, int h, int samplesPerPixel)
static void	decodePackbits(byte[] data, byte[] dst)
(package private) static long[]	getArrayLongShort(TIFFDirectory dir, int tag)
(package private) static int	getDpi(TIFFField fd, int resolutionUnit)
static int	getNumberOfPages(RandomAccessFileOrArray s)	Gets the number of pages the TIFF document has.
static Image	getTiffImage(RandomAccessFileOrArray s, boolean recoverFromImageError, int page)
static Image	getTiffImage(RandomAccessFileOrArray s, boolean recoverFromImageError, int page, boolean direct)
static Image	getTiffImage(RandomAccessFileOrArray s, int page)	Reads a page from a TIFF image.
static Image	getTiffImage(RandomAccessFileOrArray s, int page, boolean direct)	Reads a page from a TIFF image.
protected static Image	getTiffImageColor(TIFFDirectory dir, RandomAccessFileOrArray s)
static void	inflate(byte[] deflated, byte[] inflated)
(package private) static Image	ProcessExtraSamples(DeflaterOutputStream zip, DeflaterOutputStream mzip, byte[] outBuf, int samplePerPixel, int bitsPerSample, int width, int height)

Methods inherited from class java.lang.Object

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

Constructor Details

TiffImage

public TiffImage()

Method Details

getNumberOfPages

public static int getNumberOfPages(RandomAccessFileOrArray s)

Gets the number of pages the TIFF document has.

Parameters:

s - the file source

Returns:

the number of pages

getDpi

static int getDpi(TIFFField fd,
 int resolutionUnit)

getTiffImage

public static Image getTiffImage(RandomAccessFileOrArray s,
 boolean recoverFromImageError,
 int page,
 boolean direct)

getTiffImage

public static Image getTiffImage(RandomAccessFileOrArray s,
 boolean recoverFromImageError,
 int page)

getTiffImage

public static Image getTiffImage(RandomAccessFileOrArray s,
 int page)

Reads a page from a TIFF image. Direct mode is not used.

Parameters:

s - the file source

page - the page to get. The first page is 1

Returns:

the Image

getTiffImage

public static Image getTiffImage(RandomAccessFileOrArray s,
 int page,
 boolean direct)

Reads a page from a TIFF image.

Parameters:

s - the file source

page - the page to get. The first page is 1

direct - for single strip, CCITT images, generate the image by direct byte copying. It's faster but may not work every time

Returns:

the Image

getTiffImageColor

protected static Image getTiffImageColor(TIFFDirectory dir,
 RandomAccessFileOrArray s)

ProcessExtraSamples

static Image ProcessExtraSamples(DeflaterOutputStream zip,
 DeflaterOutputStream mzip,
 byte[] outBuf,
 int samplePerPixel,
 int bitsPerSample,
 int width,
 int height)
                          throws IOException

Throws:

IOException

getArrayLongShort

static long[] getArrayLongShort(TIFFDirectory dir,
 int tag)

decodePackbits

public static void decodePackbits(byte[] data,
 byte[] dst)

inflate

public static void inflate(byte[] deflated,
 byte[] inflated)

applyPredictor

public static void applyPredictor(byte[] uncompData,
 int predictor,
 int w,
 int h,
 int samplesPerPixel)