net.aerith.misao.image.io
Class Sbig

java.lang.Object
  |
  +--net.aerith.misao.image.io.Format
        |
        +--net.aerith.misao.image.io.Sbig

public class Sbig

extends Format

The Sbig is a class to read and save SBIG file. It is just an access interface to SBIG file.

Inner Class Summary

protected class

Sbig.Header The Header is a set of the hash table of SBIG header keys and the flag whether if the image is compressed or not.

Field Summary

protected static int	READ_DIFFERENCE The number which represents the next one byte show the difference of the pixel value.
protected static int	READ_VALUE The number which represents the next two bytes show the pixel value.

Fields inherited from class net.aerith.misao.image.io.Format

url

Constructor Summary

Sbig(java.net.URL url)
Constructs a Sbig with URL.

Method Summary

java.lang.String	getName() Gets the name of the image format.
MonoImage	read() Reads SBIG file and creates image buffer.
private Sbig.Header	readHeader(java.io.DataInput input) Reads header of SBIG file and creates a hash table.
void	save(MonoImage image) Saves image buffer into a SBIG file.

Methods inherited from class net.aerith.misao.image.io.Format

create, create, getTruncatedFilename, isFits, setURL

Methods inherited from class java.lang.Object

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

Field Detail

READ_VALUE

protected static final int READ_VALUE

The number which represents the next two bytes show the pixel value.

READ_DIFFERENCE

protected static final int READ_DIFFERENCE

The number which represents the next one byte show the difference of the pixel value.

Constructor Detail

Sbig

public Sbig(java.net.URL url)

Constructs a Sbig with URL.

Parameters:

url - the URL of the SBIG file.

Method Detail

getName

public java.lang.String getName()

Gets the name of the image format.

Overrides:

getName in class Format

Returns:

the name of the image format.

read

public MonoImage read()
               throws java.io.IOException,
                      UnsupportedBufferTypeException,
                      UnsupportedFileTypeException

Reads SBIG file and creates image buffer. The url of the SBIG file must be set previously.

Overrides:

read in class Format

Returns:

the monochrome image buffer.

Throws:

java.io.IOException - if I/O error occurs.

UnsupportedBufferTypeException - if the data type is unsupported.

UnsupportedFileTypeException - if the file type is unsupported.

readHeader

private Sbig.Header readHeader(java.io.DataInput input)
                        throws java.io.IOException

Reads header of SBIG file and creates a hash table.

Parameters:

input - the stream for data input.

Returns:

a hash table of SBIG header keys.

Throws:

java.io.IOException - if I/O error occurs.

save

public void save(MonoImage image)
          throws java.io.IOException,
                 UnsupportedBufferTypeException,
                 UnsupportedFileTypeException

Saves image buffer into a SBIG file. The url of the SBIG file must be set previously.

Overrides:

save in class Format

Parameters:

image - the monochrome image buffer to save.

Throws:

java.io.IOException - if I/O error occurs.

UnsupportedBufferTypeException - if the data type is unsupported.

UnsupportedFileTypeException - if the file type is unsupported.