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ccdmoms - moment along a set of images
ccdmoms [parameter=value]
ccdmoms acts somewhat similar to ccdmom(1NEMO)
with a fourth
axis, which runs over the input files. One can sum, taken the mean, dispersion
etc. along this set of images. Weights can also be given for each image,
either as a scalar, or as a map.
The following parameters are
recognized in any order if the keyword is also given:
- in=
- Input image files,
in image(5NEMO)
format, separated by comma’s. No default.
- out=
- Output image
file. No default.
- mom=
- Moment to take (0=sum,1=mean,2=disp,-1=median) Default:
-1 (mean value)
- weight=
- Scalar weights, one per image. By default all the
same. The RMS per image can also be given, in which case sigma=t (see below)
needs to be set.
- axis=
- WCS axis values of the images in case the mom= requires
this. By default they are assigned 0,1,2,.... (not implemented yet)
- win=
- Optional
input image weights, one per input file (not implemented yet)
- sigma=t|f
- Are the weights still SIGMA (t), or straight weights (f) [f]
Taking
an average of N images:
ccdmoms in=im1,im2,im3,im4 out=imm mom=1
ccdmom(1NEMO)
, ccdmath(1NEMO)
, image(5NEMO)
NEMO/src/image/misc/ccdmoms.c
Peter Teuben
15-Dec-20 V0.1 Drafted PJT
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