crism destripe
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Contents: Description, Arguments, Usage, Examples, Images, Sub-Functions, Related Functions, Source Supported Under Version: > 1.09
Description Removes column and spike related noise from CRISM images As of version 1.09 this function has been completely replaced and works significantly better.
Arguments and Return Values Inputs: short or long data arrays Outputs: a cleaned data array
Usage Syntax: crism_destripe(data [,r_size=INT] [,f_size=INT] [,z_size=INT] [,sigmamult=FLOAT] [,ignore=FLOAT]) or crism_destripe(data=VAL [,r_size=INT] [,f_size=INT] [,z_size=INT] [,sigmamult=FLOAT] [,ignore=FLOAT]) data - input I/F data from process crism (better if done after atm correction and resample) r_size - residual column noise filter size (default is 21) f_size - spike detection filter size (default is 3) z_size - spectral filter size for replacement values (default is 9) sigmamult - number of standard deviations from the mean to look for spikes (default is 1) ignore - null value for the image (default is 0)
Examples dv>in
struct, 1 elements
long: struct, 5 elements
anc: struct, 5 elements...
wl_array: 320x1x438 array of float, bil format [560,640 bytes]
at_array: 320x1x438 array of float, bil format [560,640 bytes]
id: ""HRS000035B5_07_IF174L_TRR2.IMG""
data: 320x225x438 array of float, bil format [126,144,000 bytes]
dv> in=in.long.data
320x225x438 array of float, bil format [126,144,000 bytes]
dv> in[where in>50]=0
320x225x438 array of float, bil format [126,144,000 bytes]
dv> display(sstretch(in[,,51],ignore=0))
Writing /tmp/dv_5615/yaJn2W: 320x225x1 PNG file.
dv> out=crism_destripe(in,ignore=0)
320x225x438 array of float, bsq format [126,144,000 bytes]
dv> display(sstretch(out[,,51],ignore=0))
Writing /tmp/dv_5615/yaJn2W: 320x225x1 PNG file.
Images
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Recent Library Changes Created On: 03-30-2009 |
