2024.02.07 00:42 "Re: [Tiff] error reading linearRaw subIFD from a TIFF file with libtiff built with libjpeg-turbo?", by Bob Friesenhahn

Thank you for confirming libtiff does not support 16-bit JPEG.

This is very puzzling to me. I think it means that before I built libtiff v4.6.0 with libjpeg-turbo v3.0.0, we must have had a patch or modification in our libtiff version or our old libjpeg v6b version that allowed us to read the 16-bit linearRaw subimage in the TIFF file.

I just noticed this output in the libtiff configure script help output.

   --enable-jpeg12         enable libjpeg 8/12bit dual mode (not to be used
                           with libjpeg-turbo >= 2.2)

Did you enable the above option, although you are using libjpeg-turbo >= 2.2?

Bob

Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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