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Why does the 16bit PGM/PPM output not work?

16bit PPM's and PGM's are not standard conform and therefore only supported by a few programs. So the data is converted to 8bit by default. To enable 16 bit output, as well as multi color channel output, the extension must be .pnm or the image must be converted using simg convert -pnm.

These two commands generate 16 bit PPM's:

simg bayer pict0123.mrw out.pnm
simg bayer pict0123.mrw | simg convert -pnm -o out.pnm

This produces a 8bit ppm

simg bayer pict0123.mrw out.ppm

See also:

 
faqs/16bitppm.txt · Last modified: 2010/03/08 09:51 (external edit)
 
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