[sane-devel] grey 4bit/pixel

[m. allan noah]

>>   usual Linux distributions. Otherwise, write one. The PPM, PGM, PBM
>>   formats (default for scanimage output) are very simple, and it is
>
> None of those formats support 4-bit data.
> They do support maxlevel=15 data, but the data are represented with 8-bits.
> PBM (P4) is one bit per pixel.  If you want you could stack 4 pbm images.
>

gif does. i use it every day in 4 bit mode

allan

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