[PyQt] Re: creating TIFF with CCITT FAX group 4 compression
v+pyqt at g.nevcal.com
Wed Jul 16 20:18:56 BST 2008
On approximately 7/16/2008 3:37 AM, came the following characters from
the keyboard of Alberto Berti:
>>>>>> "Glenn" == Glenn Linderman <v+pyqt at g.nevcal.com> writes:
> Glenn> Found PIL, but PIL writes only uncompressed TIFF files too,
> Glenn> according to its documentation.
> Glenn> I'm pretty far down the list of Google hits, so thought
> Glenn> maybe it was time to ask if anyone has figured out how to
> Glenn> write out a QImage into a TIFF file along with using CCITT
> Glenn> FAX group 4 compression.
> maybe you should ask to packages.debian.org before than google :-)
Thanks for the response.
If I were a debian user, perhaps I would have... I actually did see a
reference tiffcp in my Googlings, but it didn't seem to directly address
the issue of writing a QImage (memory) to a G4-compressed TIFF file.
I'm hoping for a cross-platform solution, across Mac, Linux, and
Windows. I'd also rather compress the file before writing it out to
disk, and then making a compressed copy after writing it... saves wear
and tear on the disk.
The closest that I've found so far is
http://artis.imag.fr/Software/TiffIO/#DWN but it looks rather
frightening to attempt to build and install on three different
platforms, for a novice Python, novice Qt user. It is also a couple
years old, mentioning Qt 4.0.1 rather than current releases. Of course,
a pure Python solution is likely to be slow in CPU performance... so
maybe I should gain 6 months experience and then look at this again.
More information about the PyQt