mConvert - Online in the Cloud

PROGRAM:

NAME

mConvert - Convert FITS data to a different data type (ie, integer to floating-point)

SYNOPSIS

mConvert [-d level] [-s statusfile] [-b bitpix] [-min minval] [-max maxval] [-blank
blankval] in.fits out.fits

DESCRIPTION

mConvert changes the datatype of an image. When converting to floating point, no
additional information is needed. However, when converting from higher precision (e.g.
64-bit floating point) to lower (e.g. 16-bit integer), scaling information is necessary.
This can be given explicitly by the user or guessed by the program.

OPTIONS

-d level
Turns on debugging to the specified level (1-3).

-s statusfile
mBgModel output and errors are written to statusfile instead of to stdout.

-b bitpix
BITPIX value for the output FITS file (default is -64). Possible values are:

8 (character or unsigned binary integer)
16 (16-bit integer)
32 (32-bit integer)
-32 (single precision floating point)
-64 (double precision floating point).

-min minval
Pixel data value in the input image which should be treated as a minimum (value of
0) in the output image when converting from floating point to integer. (default
for BITPIX 8: 0; BITPIX 16: -32767; BITPIX 32: -2147483647

-max maxval
Pixel data value in the input image which should be treated as a maximum (value of
255 or 32768) in the output image when converting from floating point to integer.
(Default for BITPIX 8: 255; BITPIX 16: 32768; BITPIX 32: 2147483648)

-blank blankval
If converting down to an integer scale: value to be used in the output image to
represent blank pixels (NaN) from the input image. Default value is minval.

ARGUMENTS

in.fits
Input image filename

out.fits
Output image filename.

RESULT

Output image with the datatype as specified by the user (BITPIX).

MESSAGES

OK [struct stat="OK"]

ERROR No status file name given

ERROR Cannot open status file: statusfile

ERROR No debug level given

ERROR Debug level string is invalid: 'debug-level'

ERROR Debug level value cannot be negative

ERROR No bitpix value given

ERROR Bitpix string is invalid: 'bitpix'

ERROR Bitpix must be one of (8, 16, 32, -32, -64)

ERROR No range min value given

ERROR Range min string is invalid: 'min'

ERROR No range max value given

ERROR Range max string is invalid: 'max'

ERROR No blank value given

ERROR Blank string is invalid: 'blank'

ERROR Invalid input file 'in.fits'

ERROR Invalid output file 'out.fits'

ERROR general error message

ERROR FITS library error message

EXAMPLES

Converting a single-precision image down to a 16-bit integer BITPIX, when the data is
clustered between values of -0.01 and 0.1:

$ mConvert -b 16 -min -0.01 -max 0.1 -blank -32767 acs.fits acs_bitpix16.fits
[struct stat="OK"]

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