AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

2002.09.30 22:09 "Error message with tiffcp", by Mujtaba Ali
2002.10.01 10:49 "Re: Error message with tiffcp", by Andrey Kiselev
2002.10.01 13:36 "RE: Error message with tiffcp", by Ed Grissom
2002.10.02 05:16 "Re: Error message with tiffcp", by Tom Lane

2002.10.02 05:16 "Re: Error message with tiffcp", by Tom Lane

On Mon, Sep 30, 2002 at 06:09:28PM -0400, Mujtaba Ali wrote:

JPEGSetupEncode: BitsPerSample 1 not allowed for JPEG.

JPEG compression of the 1-bit image planes are not supported by the libtiff.

With good reason: JPEG is completely useless for 1-bit-per-pixel images.

You might have better luck with one of the fax-style compression methods (G3 or G4).

                        regards, tom lane
                        organizer, Independent JPEG Group