2004.03.25 07:30 "Re: [Tiff] bug/annoyance: top-left orientation warning message in tiffcp/tiff-3.6.1", by Andrey Kiselev

Steven,

After the upgrade, when using the 3.6.1 tiffcp (-a 1.tif 2.tif multipage.tif), we get a warning message for every created multipage tiff about missing orientation:

"WARNING img.tif: using top-left orientation"

tiffcp does not support arbitrary origin positions, so it warns when the input origin cannot be handled properly. Could you send the tiffinfo output for your image?

What is this warning about at all? I could not find anything in the TIFF6 Spec about the importance of that tag and we don't have any problems with source images and created multipage images.

is that necessary? ->        TIFFSetField(out, TIFFTAG_ORIENTATION, orientation);

Not necessary, but it is good to have such a tag in the image.

Andrey

Andrey V. Kiselev
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