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[McIDAS #UNQ-564030]: Meteosat5 brightness to temperature for color bar on McIDAS image display



Hi Arlene,

I plotted the Temperatures in met5_BRITtoTEMP.wni as a function of
brightness:

328.907 - 0
 ...
130.000 - 255

and approximated the curve with 8 straight line segments.  I then used
the numbers to create a stretch table for the METEOSAT-5 IR imagery.

Here is a McIDAS BATCH file that creates the stretch:

LWU DEL MET5TEMP.ST
SU INI MET5TEMP X TEMP
SU MAKE MET5TEMP 328.907 282.212   0 118
SU MAKE MET5TEMP 282.211 251.306 119 172
SU MAKE MET5TEMP 251.305 224.490 173 204
SU MAKE MET5TEMP 224.491 202.755 205 221
SU MAKE MET5TEMP 202.754 187.291 222 229
SU MAKE MET5TEMP 187.292 164.396 230 236
SU MAKE MET5TEMP 164.397 130.049 237 240
SU MAKE MET5TEMP 130.050 130.000 241 255

Copy these lines to a BATCH file named MET5ST.BAT in your McIDAS working
directory (~mcidas/workdata for the user 'mcidas'; ~mcidas/mcidas/data
for all other users) and run BATCH to create a stretch named MET5TEMP.ST
For example:

BATCH MET5ST.BAT

You would then load an METEOSAT-5 image and use BAR to annotate it:

IMGDISP ...
BAR SU=MET5TEMP

Please let me know if this looks correct to you.

Cheers,

Tom
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Ticket Details
===================
Ticket ID: UNQ-564030
Department: Support McIDAS
Priority: Normal
Status: Closed


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