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ccdsub - sub/average of an image
ccdsub [parameter=value]
ccdsub
takes a subimage from an image, as described by a new set of coordinates
in X, Y and/or Z (since the expression of the selected axes is arbitrary,
the resulting coordinate system may be bogus).
Since cubes/images produced
by this program may have dummy axes (length 1), you will need to use ccdslice(1NEMO)
to get rid of them, or use the dummy= keyword below.
The following
parameters are recognized in any order if the keyword is also given:
- in=
- Input image file
- out=
- Output image file
- x=
- X coordinates to select.
Valid numbers are 1..nx. By default all will be selected.
- y=
- Y coordinates
to select. Valid numbers are 1..ny. By default all will be selected.
- z=
- Z coordinates
to select. Valid numbers are 1..nz. By default all will be selected.
- nxaver=
- Number X to aver (size remains same)
- nyaver=
- Number Y to aver (size remains
same)
- nzaver=
- Number Y to aver (size remains same)
- dummy=t|f
- Write out
dummy axes as well? [true]
- reorder=xyz
- New order of axes after all previous
actions have been taken. The default is no reordering, i.e. keep it in xyz
order. To reverse only the X and Y axis, reorder=yxz is needed. ** NOT IMPLEMENTED
YET **
ccdslice(1NEMO)
, ccdmom(1NEMO)
, image(5NEMO)
Peter
Teuben
1993 code written PJT
22-Feb-97 man page written PJT
12-aug-02 more doc PJT
17-jun-03 WCS for simple subsetting PJT
9-apr-09 V1.6 replace skip= with dummy=, fix bug nzaver= PJT
18-jun-09 V2.0a fixed bug when Z size if different from XY PJT
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