On 26/08/2010 11:46, Albert-Jan Roskam wrote:
Hi,
I have a small application, written in Tkinter. It is supposed to
display a tif image, among other things. The problem is, PIL
won't decode group 4 Tifs (G4 TIF).
The tifs that I have are about 125kb and contain two pages per file.
They're scanned, monochrome files. I need the second page of the tif,
more specifically the lower half
of the second page. I will have 5000-6000 tifs eventually, to manual
conversion is not an option.
While googling around, I found many other people who faced the same
problem. Since I cannot download executables here, I decided to use wx.
Ideally, I'd like an object that can be handled with
Tkinter.PhotoImage, but I'm also very happy with a simple program that
converts from G4 tif to Gif.
I have zero knowledge from wx. Therefroe, I'd really appreciate some
pointers as to how to make the program below work.
import wx, os
def tif2gif(infile):
""" This does *not* work """
SECONDPAGE = 1
outfile = os.path.splitext(infile[0] + ".gif")
image = wx.Image(name = infile, type = wx.BITMAP_TYPE_TIF, index =
SECONDPAGE)
bitmap = wx.BitmapFromImage(self.image)
bitmap.SaveFile(outfile", wx.BITMAP_TYPE_GIF)
tif2gif(infile = "d:/temp/somefile.tif")
Thank you very much in advance!
Cheers!!
Albert-Jan
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Any chance you run Linux ? If so you can do it with convert like
for fn in ./*.tif; do convert $fn $fn.jpg; done
for fn in ./*-1.jpg; do convert $fn $fn.gif; done
The reason for the 2 step conversion is tif -> gif seems to only give
you access to the first page.
--
Kind Regards,
Christian Witts
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