[Boost-users] [GIL new_io] Some questions about TIFF handling

Subject: [Boost-users] [GIL new_io] Some questions about TIFF handling
From: Olivier Tournaire (olitour_at_[hidden])
Date: 2010-02-28 12:48:35

Hi all (and in particular Christian),

I have some questions about TIFF reader/writer in GIL new_io.
First, I do not understand why *bits32f* are scoped in the range [0.f ...
1.f]. It is for our applications a real limitation because we use float TIFF
images not scoped in the range. We thus have to define a new type (e.g.
bits32F) which is not scoped and simply typedef float bits32F. In addition,
why double is not "typedefed" by default? We also have to define a new type:
typedef double bits64f. Double however seems to be supported in the writer.

Last, but not least, there is no support for *tiled TIFF*. Nothing about
tiled TIFF is defined in tiff_tags.hpp. Maybe we could add in
tiff_device_base a read_tile method, similar to read_scaline (sic), but
which simply swap TIFFReadScanline with TIFFReadTile.

So, do you plan to add this stuffs in the new version of GIL io? Maybe I
could help. Let me know.

Best regards,

Olivier