nom.tam.image.compression.hdu.CompressedImageData

All Implemented Interfaces:: FitsElement, TableData

public class CompressedImageData extends BinaryTable

Nested Class Summary

Nested classes/interfaces inherited from class nom.tam.fits.BinaryTable
BinaryTable.ColumnDesc, BinaryTable.SaveState
Field Summary

Fields inherited from class nom.tam.fits.Data
dataSize, fileOffset, input
Constructor Summary

Constructors

Modifier

Constructor

Description

protected

CompressedImageData()

protected

CompressedImageData(Header hdr)
Method Summary

Modifier and Type

Method

Description

protected void

compress(CompressedImageHDU hdu)

void

fillHeader(Header h)

Update a FITS header to reflect the current state of the data.

protected void

forceNoLoss(int x, int y, int width, int heigth)

protected <T extends ICompressOption> T

getCompressOption(Class<T> clazz)

protected Buffer

getUncompressedData(Header hdr)

protected void

prepareUncompressedData(Object data, Header header)

protected void

preserveNulls(long nullValue, String compressionAlgorithm)

preserve the null values in the image even if the compression algorithm is lossy.

protected CompressedImageData

setAxis(int[] axes)

protected void

setCompressAlgorithm(HeaderCard compressAlgorithmCard)

protected void

setQuantAlgorithm(HeaderCard quantAlgorithmCard)

protected CompressedImageData

setTileSize(int... axes)

Methods inherited from class nom.tam.fits.BinaryTable
addByteVaryingColumn, addColumn, addFlattenedColumn, addRow, createColumnDataFor, createColumnTable, deleteColumns, deleteRows, getBases, getColumn, getData, getDimens, getElement, getFlatColumns, getFlattenedColumn, getHeapOffset, getHeapSize, getModelRow, getNCols, getNRows, getRawElement, getRow, getSizes, getTDims, getTrueSize, getTypes, read, readHeap, readTrueData, setColumn, setElement, setFlattenedColumn, setRow, updateAfterDelete, validColumn, validRow, write

Methods inherited from class nom.tam.fits.Data
getFileOffset, getKernel, getSize, reset, rewrite, rewriteable, setFileOffset

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- CompressedImageData
  
  protected CompressedImageData()
- CompressedImageData
  
  protected CompressedImageData(Header hdr) throws FitsException
  
  Throws:
  
  FitsException
Method Details
- fillHeader
  
  public void fillHeader(Header h) throws FitsException
  
  Description copied from class: BinaryTable
  
  Update a FITS header to reflect the current state of the data. * @throws FitsException if the operation failed
  
  Overrides:
  
  fillHeader in class BinaryTable
  
  Throws:
  
  FitsException
- compress
  
  protected void compress(CompressedImageHDU hdu) throws FitsException
  
  Throws:
  
  FitsException
- forceNoLoss
  
  protected void forceNoLoss(int x, int y, int width, int heigth)
- getCompressOption
  
  protected <T extends ICompressOption> T getCompressOption(Class<T> clazz)
- getUncompressedData
  
  protected Buffer getUncompressedData(Header hdr) throws FitsException
  
  Throws:
  
  FitsException
- prepareUncompressedData
  
  protected void prepareUncompressedData(Object data, Header header) throws FitsException
  
  Throws:
  
  FitsException
- preserveNulls
  
  protected void preserveNulls(long nullValue, String compressionAlgorithm)
  
  preserve the null values in the image even if the compression algorithm is lossy.
  
  Parameters:
  
  nullValue - the value representing null for byte/short and integer pixel values
  
  compressionAlgorithm - compression algorithm to use for the null pixel mask
- setAxis
  
  protected CompressedImageData setAxis(int[] axes)
- setCompressAlgorithm
  
  protected void setCompressAlgorithm(HeaderCard compressAlgorithmCard)
- setQuantAlgorithm
  
  protected void setQuantAlgorithm(HeaderCard quantAlgorithmCard) throws FitsException
  
  Throws:
  
  FitsException
- setTileSize
  
  protected CompressedImageData setTileSize(int... axes) throws FitsException
  
  Throws:
  
  FitsException

Class CompressedImageData

Nested Class Summary

Nested classes/interfaces inherited from class nom.tam.fits.BinaryTable

Field Summary

Fields inherited from class nom.tam.fits.Data

Constructor Summary

Method Summary

Methods inherited from class nom.tam.fits.BinaryTable

Methods inherited from class nom.tam.fits.Data

Methods inherited from class java.lang.Object

Constructor Details

CompressedImageData

CompressedImageData

Method Details

fillHeader

compress

forceNoLoss

getCompressOption

getUncompressedData

prepareUncompressedData

preserveNulls

setAxis

setCompressAlgorithm

setQuantAlgorithm

setTileSize