"Jean-Baptiste BUTET" on  wrote...
| Hi all :)
| 
| I'm processing FITS file (astronomical picture). These Fits are coloured.
| That means they contain 3 layers :  One red, one green , one Blue.
| 
| When opening them with The gimp, I have an option (Naxis=3) that allowed a
| direct color conversion. On the other hand, it gives me 3 layers.
| 
| With convert (
| Version: ImageMagick 6.3.2 05/04/07 Q16 http://www.imagemagick.org
| Copyright: Copyright (C) 1999-2007 ImageMagick Studio LLC)
| 
| convert myfitfile.fit myfitconverted.jpg
| 
| gives me 3 files :
| myfitconverted-0.jpg  myfitconverted-1.jpg  myfitconverted-2.jpg
| 
| that contains Red, Blue and green informations.
| 
| Does exist a option that could handle this ?
| 
Yes and very simply too...

    convert myfitfile.fit  -combine  myfitconverted.jpg

Warning, JPG is a lossy format. if you don't want to loose information
but save it exactly use PNG format instead.

| here is a file for example.
| 
| http://ashashiwa.free.fr/images_diverses/3layerfit.fit
| 
Hmm the test image you gave came upside down.  Not sure if it was
rotated or flipped. So you may need to use  "-rotate 180"  or  "-flip"
It actually does not matter if you do this before or after the
"-combine" but it is probably better afterward.

This worked fine for me.

   convert 3layerfit.fit  -combine -flip  3layerfit.jpg

For other options see
  http://www.cit.gu.edu.au/~anthony/distort/#simple

The test image came out ok so I assume the image order was red then
green then blue, otherwise I would also needed to use various
image reordering 'sequence' functions.
   http://www.cit.gu.edu.au/~anthony/basics/#sequence


  Anthony Thyssen ( System Programmer )    <[EMAIL PROTECTED]>
 -----------------------------------------------------------------------------
   "One afternoon we were running the Khronal Dungeon, and we opened a
   door and found ourselves looking out into the living room where we
   were playing.  One of the characters shot the Game Master with a
   crossbow bolt, and the whole dungeon dissappeared!"   -- "Dream Park"
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     Anthony's Home is his Castle     http://www.cit.gu.edu.au/~anthony/
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