Try converting to uncompressed with Graphics Magick or Image Magick
(free software), using a command like:
convert eng.arial.g4.tif  +compress eng.arial.tif

Then run tesseract on eng.arial.tif.

On Aug 26, 3:14 am, genao1000 <[email protected]> wrote:
> Hi Ray
> We trying to create makeboxfile with English source tiff file and
> receive every time error:
> Tesseract Open Source OCR Engine
> read_tif_image:Error:Illegal image format:Compression
> tesseract.exe:Error:Read of file failed:eng.arial.g4.tif.
> After changing compression type we receive corrupted box file.
> Thanks,
> Gadi
>
> On Aug 21, 2:02 am, Ray Smith <[email protected]> wrote:
>
>
>
> > See new question in FAQ.
> > Ray.
>
> > On Tue, Aug 18, 2009 at 1:47 AM, genao1000 <[email protected]> wrote:
>
> > > Hello
>
> > > I have found some errors in a certain font in english.
> > > I succeeded in training to correct the errors - created a new .tr
> > > file.
> > > my understanding is that now it needs to be clustered with the
> > > existing eng.* files
> > > or in other words needs to be added to the allready trained english
> > > files.
> > > this is where i have trouble...
> > > where do I find the complete *.tr files?
> > > can my newly trained .tr file be added alternatively?
>
> > > please help :)
> > > Thanks,
> > > Gadi- Hide quoted text -
>
> - Show quoted text -
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