You can try building latest GitHub source for 4.0alpha and test with the
best/eng.traineddata from the tessdata repository.
-- Excuse the brevity, msg sent from phone.
On 25-Aug-2017 12:36 AM, "Clinton Graham" <ctgra...@pitt.edu> wrote:
> Do you have any simple suggestions for improving OCR quality where
> tesseract is missing single character words like "a" and "I"?
>
> I'm using the default packages available in Ubuntu:
> tesseract 3.03
> leptonica-1.70
> libgif 4.1.6(?) : libjpeg 8d : libpng 1.2.50 : libtiff 4.0.3 : zlib
> 1.2.8 : webp 0.4.0
>
> I've also tried updating Ubuntu, building later 3.x sources:
> tesseract 3.05.01
> leptonica-1.74.4
> libjpeg 8d (libjpeg-turbo 1.3.0) : libpng 1.2.50 : libtiff 4.0.3 : zlib
> 1.2.8
>
> I'm using a command line run of simply:
> tesseract -psm 1 -l eng $f $f pdf
>
> I've also tried -psm 6 based on another forum post (though some of my
> input will be multicolumn).
>
> In whatever case, the first paragraph of the my TIFF (attached) is
> consistently read without instances of single character words:
>
> Honors Award {Presentation to Robert H. Ivy, M.D., D.D.S., Sc.D.,
>> F_‘.A.C.S. At the business meeting .of the American Cleft Palate
>> Association on May 6, 1961 in Montreal, Canada, an Honors and Awards
>> Committee was established and its duties were set forth. The Executive
>> Committee then selected Dr. Robert Ivy to be the first recipient of an
>> Honors Award. An HOnors and Awards Committee was then selected by the
>> President; serve as the current chairman. It therefore becomes personal
>> honor and privilege to me to be able to present this first award to good
>> friend. Dr. Ivy has had long and brilliant career in the field of plastic
>> surgery with particular interest in the cleft lip and palate patient. It
>> will be possible for us to mention only very few of Dr. Ivy’s many
>> accomplishments in our allotted time here today. would, therefore, like to
>> recommend to you two publications which will give you more insight into the
>> life of our honored guest.
>>
>
> I'm hoping this sample and description is also representative of other
> dropped characters, such as single numerals in pagination and single
> initials in some instances.
>
> Unfortunately, I don't have a lot of time to devote to this project, so
> anything easy and obvious which I'm missing?
>
> Thanks,
>
> - Clinton Graham
>
> Systems Developer
>
> University of Pittsburgh | University Library System
>
> 412-383-1057 <(412)%20383-1057>
>
>
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