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PROGRAM:

NAME


mShrinkCube - Reduce the size of a FITS cube

SYNOPSIS


mShrinkCube [-f] [-d level] [-m factor] [-s statusfile] in.fits out.fits factor

DESCRIPTION


A utility for reducing the size of a FITS cube, by averaging blocks of pixels by any
factor spatially and
by integer factors in the third dimension.

OPTIONS


-f Fixed-size flag - specify output size of image, instead of the size of blocks of
pixels to be averaged

-d level
Turns on debugging to the specified level (1-4).

-m factor
The (positive integer) factor by which to compress the cube in the third (usually
wavelength-related) dimension.

-s statusfile
Output and errors are sent to statusfile instead of to stdout

ARGUMENTS


in.fits
Input FITS cube

out.fits
Path to output FITS cube.

factor Size of blocks, in (fractional) pixels, to average. File size will be reduced by
1/factor squared. If the -f (fixed-size) flag is used, factor is the desired width
of the output image.

RESULT


[Normal mode]: FITS output image, reduced in size by a factor of (1/factor)^2 .

[Fixed-size mode]: FITS output image of width factor

MESSAGES


OK [struct stat="OK"]

ERROR Cannot open status file: statusfile

ERROR Image size factor cannot be interpreted as an real number

ERROR Shrink factor factor cannot be interpreted as an real number

ERROR [struct stat="ERROR", msg=

ERROR HDU value (n) must be a non-negative integer

ERROR Third axis compression factor (n) must be a positive integer

ERROR Image file in.fits missing of invalid FITS.

ERROR FITS library error

EXAMPLES


$ mShrinkCube final/out.fits final/out-lowres_5.fits 5
[struct stat="OK"]

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