astro.fits

Interface ImageReducing

All Known Implementing Classes:

AutoGuidingMode, AuxiliaryCoarseAcquisition, AuxiliaryFineAcquisition, CoarseStarAcquisition, FineStarAcquisition, FixedFrameAcquisition, OffAxisCoarseAcquisition, OffAxisFineAcquisition, PinholeCoarseAcquisition, PinholeFineAcquisition, StarAcquisition

public interface ImageReducing

Names capabilities to provide calibration data required for image reduction.

Author:

wooz

Method Summary

Modifier and Type	Method and Description
float[]	getBias(MImageHDU raw) Returns a bias frame as a one-dimensional float.
float[]	getDark(MImageHDU raw, double exptime) Returns a dark frame as a one-dimensional float.
float[]	getFlat(MImageHDU raw, String filter) Returns a flat frame for the specified filter name as a one-dimensional float.

Method Detail

getBias

float[] getBias(MImageHDU raw)
         throws BasicFitsException

Returns a bias frame as a one-dimensional float. The geometry follows from the raw file.

Parameters:

raw - The raw image to check geometry.

Returns:

A float array in the raw image layout or null.

Throws:

BasicFitsException

getDark

float[] getDark(MImageHDU raw,
                double exptime)
         throws BasicFitsException

Returns a dark frame as a one-dimensional float. The geometry follows from the raw file.

Parameters:

raw - The raw image to check geometry.

exptime - The exposure time of the raw image in seconds

Returns:

A float array in the raw image layout or null.

Throws:

BasicFitsException

getFlat

float[] getFlat(MImageHDU raw,
                String filter)
         throws BasicFitsException

Returns a flat frame for the specified filter name as a one-dimensional float. The geometry follows from the raw file.

Parameters:

raw - The raw image to check geometry.

filter - Name of filter or null if only white light or singled-filter system.

Returns:

A float array in the raw image layout or null.

Throws:

BasicFitsException