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Name

ccdflip - flip an image in X,Y,Z

Synopsis

ccdflip [parameter=value]

Description

ccdflip flips the data along one of the principal axes (X, Y or Z) of an image. Not all permutations were implemented, as this program was a quick hack.

By default it now also adjusts the WCS (which historically was never the case, only the data were flipped). To retain the old behavior, wcs=f needs to be used.

Parameters

The following parameters are recognized in order; they may be given in any order if the keyword is also given. Use --help to confirm this man page is up to date.
in=
Input image file. No default.
out=
Output image file. No default.
flip=x|y|z|xy
Flip in x,y or z? Use ’xy’ for flipping axes on square images. If an unknown axis is given, no flipping is done, the data is passed unchanged. Default: x
wcs=t|f
Should be WCS be adjusted as well? Default: f

See Also

ccdsub(1NEMO) , ccdreorder(1NEMO) , image(5NEMO)

Examples

To rotate an image by 90 degrees (clockwise) use two flips:
    ccdflip gal1.ccd - xy | - gal2.ccd y

Author

Peter Teuben

History


22-Feb-97    man written    PJT
15-jul-2019    example added    PJT
15-sep-2023    V2.0 added wcs=    PJT


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