mShrinkCube(1)

Usage

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

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.

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

-h hdu: Use the specified FITS extension (default is to use the first HDU with image data)

-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

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.

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

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

`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

5 releases since Debian 9 (Stretch); the text changed 1 time.

-h since Debian 10 (Buster).