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ccdmedian - median or mean filter of an image
ccdmedian [parameter=value]
Median filter of an image. For some cases, ccdflatten(1NEMO)
will be a faster method, since a median filter needs to sort all particles
in the search area and can become slow.
The following parameters
are recognized in any order if the keyword is also given:
- in=
- Input image
file [???]
- out=
- Output image file [???]
- n=
- (odd) size of filter
[5]
- x=
- Optional subselection of the X range (min,max) []
- y=
- Optional
subselection of the Y range (min,max) []
- nstep=
- Cheat mode: replicate each
nstep pixels [1]
- fraction=
- Fraction of positive image values in subtract
mode
- mode=
- Mode: median, average, subtract [median]
- torben=t|f
- Use the Torben
method for median filter. [f]
ccdsharp(1NEMO)
, ccdsmooth(1NEMO)
,
ccdflatten(1NEMO)
, image(5NEMO)
Peter Teuben
12-Feb-05 V0.0 Created PJT
12-Jun-2013 V0.8 mean option for speed PJT
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