org.jmrtd.lds

Class DisplayedImageInfo

java.lang.Object

org.jmrtd.lds.AbstractImageInfo

org.jmrtd.lds.DisplayedImageInfo

All Implemented Interfaces:

Serializable, ImageInfo, LDSElement

public class DisplayedImageInfo
extends AbstractImageInfo

Data structure for storing either a Portrait (as used in DG5) or a Signature or mark (as used in DG7).

Version:

$Revision: 1766 $

Author:

The JMRTD team ([email protected])

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	DISPLAYED_PORTRAIT_TAG
static int	DISPLAYED_SIGNATURE_OR_MARK_TAG

Fields inherited from interface org.jmrtd.lds.ImageInfo

JPEG_MIME_TYPE, JPEG2000_MIME_TYPE, TYPE_FINGER, TYPE_IRIS, TYPE_PORTRAIT, TYPE_SIGNATURE_OR_MARK, TYPE_UNKNOWN, WSQ_MIME_TYPE

Constructor Summary

Constructors

Constructor and Description
DisplayedImageInfo(InputStream in) Constructs a displayed image info from binary encoding.
DisplayedImageInfo(int type, byte[] imageBytes) Constructs a displayed image info from the image bytes.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
long	getRecordLength() Returns the record length of the encoded image info.
int	hashCode()
protected void	readObject(InputStream inputStream) Reads the displayed image.
protected void	writeObject(OutputStream outputStream) Writes this object to a stream.

Methods inherited from class org.jmrtd.lds.AbstractImageInfo

getEncoded, getHeight, getImageInputStream, getImageLength, getMimeType, getType, getWidth, readImage, setHeight, setImageBytes, setMimeType, setType, setWidth, toString, writeImage

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

DISPLAYED_PORTRAIT_TAG

public static final int DISPLAYED_PORTRAIT_TAG

See Also:

Constant Field Values

DISPLAYED_SIGNATURE_OR_MARK_TAG

public static final int DISPLAYED_SIGNATURE_OR_MARK_TAG

See Also:

Constant Field Values

Constructor Detail

DisplayedImageInfo

public DisplayedImageInfo(int type,
                          byte[] imageBytes)

Constructs a displayed image info from the image bytes.

Parameters:

type - one of ImageInfo.TYPE_PORTRAIT or ImageInfo.TYPE_SIGNATURE_OR_MARK

imageBytes - encoded image, for Portrait and Signature or mark use JPEG encoding

DisplayedImageInfo

public DisplayedImageInfo(InputStream in)
                   throws IOException

Constructs a displayed image info from binary encoding.

Parameters:

in - an input stream

Throws:

IOException - if decoding fails

Method Detail

readObject

protected void readObject(InputStream inputStream)
                   throws IOException

Reads the displayed image. This method should be implemented by concrete subclasses. The 5F2E or 7F2E tag and the length are already read.

Specified by:

readObject in class AbstractImageInfo

Parameters:

inputStream - the input stream positioned so that biometric data block tag and length are already read

Throws:

IOException - if reading fails

writeObject

protected void writeObject(OutputStream outputStream)
                    throws IOException

Description copied from class: AbstractImageInfo

Writes this object to a stream.

Specified by:

writeObject in class AbstractImageInfo

Parameters:

outputStream - the stream to write to

Throws:

IOException - on error writing to the stream

getRecordLength

public long getRecordLength()

Returns the record length of the encoded image info.

Returns:

the record length of the encoded image info

hashCode

public int hashCode()

Overrides:

hashCode in class AbstractImageInfo

equals

public boolean equals(Object obj)

Overrides:

equals in class AbstractImageInfo