* Melchior FRANZ -- Friday 03 June 2005 08:12:
> * gimp:
>   - save as foo.rgb and select "SGI" in the "Determine Filetype" selector
>     (Don't use "By extension", because that creates some other *.rgb" format)
> 
>   - or save as foo.sgi and then rename to foo.rgb

When asked for the "Compression Type", choose "Aggressive RLE (Not supported
by SGI)". (This *is* supported by SGI, it's in SGI's own SGI image format
spec. This compression type is supported by GIMP, KDE, ImageMagick, Blender,
plib, ... and is the smallest that GIMP can write. (Could be made smaller
by other programs. Just ask. :-)



> * any graphics program. Save to any format. But then convert to SGI using
>   ImageMagick's "convert:
> 
>     $ convert foo.jpeg sgi:foo.rgb

"convert" seems to use (non-"aggressive") RLE by default. If not, use the
"-compress RLE" option.

      $ convert foo.jpeg -compress RLE sgi:foo.rgb

m.

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