Class ImageHDU

java.lang.Object

org.episteme.natural.physics.loaders.fits.HDU

org.episteme.natural.physics.loaders.fits.ImageHDU

Direct Known Subclasses:

OptimizedImageHDU

public class ImageHDU
extends HDU

Header Data Unit representing an Image (N-dimensional array).

This class handles the reading of binary data as a generic Matrix.

Since:

1.0

Author:

Silvere Martin-Michiellot, Gemini AI (Google DeepMind)

Field Summary

Fields inherited from class HDU

header

Constructor Summary

Constructors

Constructor	Description
ImageHDU(Header header)

Method Summary

Modifier and Type	Method	Description
RealDoubleMatrix	asMatrix(ReadableByteChannel channel)	Reads the image data as a 2D Matrix of Reals.
long	getDataSize()	Returns the size of the data block in bytes, excluding padding.

Methods inherited from class HDU

getHeader

Methods inherited from class Object

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

Constructor Details

ImageHDU

public ImageHDU(Header header)

Method Details

getDataSize

public long getDataSize()

Description copied from class: HDU

Returns the size of the data block in bytes, excluding padding.

Specified by:

getDataSize in class HDU

Returns:

data size in bytes.

asMatrix

public RealDoubleMatrix asMatrix(ReadableByteChannel channel)
                          throws IOException

Reads the image data as a 2D Matrix of Reals.

Parameters:

channel - the channel to read from

Returns:

the matrix representation of the image

Throws:

IOException - if an error occurs