x=209;y=109; jpegtopnm /var/www/html/photos/cyclamin.jpg | ppmtopgm | pnmscale
-xsize=${x} -ysize=${y} | ppmquant 16 | ppmtobmp -bpp=4 >
/var/www/html/photos/background.bmp
Thanks Anthony. This command gets the job done. identify still reports 8 bits
depth but the file is indeed about half that of one with 256 colors - even if I
leave the -bpp=4 option out.
John
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