com.itextpdf.text.pdf.codec

Class CCITTG4Encoder

java.lang.Object

com.itextpdf.text.pdf.codec.CCITTG4Encoder

public class CCITTG4Encoder
extends Object

Encodes data in the CCITT G4 FAX format.

Constructor Summary

Constructors

Constructor and Description
CCITTG4Encoder(int width) Creates a new encoder.

Method Summary

Modifier and Type	Method and Description
byte[]	close() Closes the encoder and returns the encoded data.
static byte[]	compress(byte[] data, int width, int height) Encodes a full image.
void	fax4Encode(byte[] data, int height) Encodes a number of lines.
void	fax4Encode(byte[] data, int offset, int size) Encodes a number of lines.

Methods inherited from class java.lang.Object

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

Constructor Detail

CCITTG4Encoder

public CCITTG4Encoder(int width)

Creates a new encoder.

Parameters:

width - the line width

Method Detail

fax4Encode

public void fax4Encode(byte[] data,
                       int offset,
                       int size)

Encodes a number of lines.

Parameters:

data - the data to be encoded

offset - the offset into the data

size - the size of the data to be encoded

compress

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

Encodes a full image.

Parameters:

data - the data to encode

width - the image width

height - the image height

Returns:

the encoded image

fax4Encode

public void fax4Encode(byte[] data,
                       int height)

Encodes a number of lines.

Parameters:

data - the data to be encoded

height - the number of lines to encode

close

public byte[] close()

Closes the encoder and returns the encoded data.

Returns:

the encoded data