>I'm currently evaluating for a wxPython based fax viewer/manager project
>for fax G3 tiffs, which are typically generated by hylafax.
>I've found the Image Squeezer on http://starship.python.net/jjkunce/
>as a basic example, how to mix wxPython and PIL, where I fall over this:
>When loading a fax tiff, im.mode is set to "1", and trying to convert it
>to RGB results in:
>IOError: decoder group3 not available
>Is there any chance, that PIL supports this decoder soon, or do
>I need to look for other ways to get around this?Well, I asked the question about 2 years ago and it comes up frequently. I
guess noone with the necessary cash or knowledge has been able to write the
driver.
Bad news!
Well, I dived into this a bit deeper this afternoon, and found a
workaround, because wxImage was able to decode the G3 stuff:
if img1.format == "TIFF" and img1.mode == "1":
# Fax G3 tiff
img = wxImage(self.srcpath, wxBITMAP_TYPE_TIF)
bm = img.ConvertToBitmap()
imgsize = bm.GetWidth(), bm.GetHeight()
img1 = Image.fromstring("RGB", imgsize, img.GetData())
Unfortunately, I ran right across the next problems:
wxImage ignores any subsequent pages of the fax tiff. Does some
enlighted wxMind know, how do I get all images/pages out of this kind
of tiff's?
Now, I stick in the process of getting the scaling of low resolution
faxes right (with different V/H resolutions). I guess, I've to double
every scanline of them :()
Regards,
Stephan
Cheers,
Hans-Peter
···
On Monday, 11. February 2002 18:12, Stephan Richter wrote:
On Monday, 11. February 2002 15:07, Hans-Peter Jansen wrote: