2008.10.22 23:16 "Re: [Tiff] JPEGSetupEncode messages", by Frank Warmerdam

I have tiff output from a scanner with which I would like use

> libtiff's jpeg compression via tiffcp. For a greyscale scan, however,

I am getting:

> JPEGSetupEncode: RowsPerStrip must be multiple of 8 for JPEG

Jeff,

I would suggest selecting a RowsPerStrip value that is a multiple of 8.

and for colour scans:

> JPEGSetupEncode: BitsPerSample 16 not allowed for JPEG
>
> What can I do to make this work?

It is quite challenging to manage 16bit data with JPEG compression. How badly do you want to do this?

Best regards,
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