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[Bug-ocrad] Some more examples ...


From: Uwe Dippel
Subject: [Bug-ocrad] Some more examples ...
Date: Fri, 27 Jul 2007 19:00:17 +0800
User-agent: Thunderbird 1.5.0.9 (X11/20070105)

There are just some observations here on our side after some tests of today with respect to width of essentially the same font.

One sample is a built-in font, using lpr {filename}; while the other is the same file in KWrite, printed with CUPS. KWrite, for one reason or another beyond our intention, squeezes the characters very close, it looks like highly over-kerned.

While we surely don't expect the overdone kerning to recognise properly, we are still astonished that the wide character distance results in flawless recognition, while the overkerned sample misses out one clearly existing letter, an 'i', with its characteristic dot. Also, a very obvious third vertical stroke of a 'm' is definitively discarded. We have scanned both another time, at a rotation of 180°, and found identically the same result. Again, we are happy with what we get, though would like to raise our concern about the non-recognition of two unambiguous features; the existence of a letter 'i' and three strokes in an 'm' that are recognized reproducibly as 'n'.

Uwe





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