2007.08.28 16:22 "Re: [Tiff] Bits/sample must be 1 for Group 3/4 encoding/decoding", by Toby Thain

On 28-Aug-07, at 12:47 PM, Paul Smith wrote:

Dear All,

When trying to convert from ppm to tiff, I get th following error:

$ ppm2tiff -c g4 pag-160.ppm lixo.tif lixo.tif: Bits/sample must be 1 for Group 3/4 encoding/decoding.

$

Any ideas?

A PPM is typically RGB, IIRC; try making sure it's 1-bit data first (PBM).

--Toby

> _______________________________________________
> Tiff mailing list: Tiff@lists.maptools.org
> http://lists.maptools.org/mailman/listinfo/tiff
> http://www.remotesensing.org/libtiff/