Sebastian,

JPEG compression is definitely not needed, nor appropriate for the kind of TIFF files PROJ handles. The grid files distributed by PROJ use the DEFLATE compression method, which requires libtiff to be built against zlib

Even

Le 26/07/2023 à 09:34, Sebastian Gellrich a écrit :

Hello,

I am trying to build PROJ9 for my android application. At the moment it works in a proof of concept with "ENABLE_TIFF=OFF".

Now I want to build and integrate TIFF support to use PROJ data resource files.

Does PROJ9 need JPEG support in the libtiff library. If not, it will be a bit easier.

Thanks in advance


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