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Re: Credit to El Bandolero for that Abby FineReader link.
de John Corliss 05/08/2006 04:39
Ian Jackson wrote:
> John Corliss writes
>> Ian Jackson wrote:
>>> John Corliss wrote:
>>
>>> I actually bought V7 (new download, about $90) because I thought that
>>> it was distinctly better than the freebies. [Note: I felt rather
>>> cheated when I found the that it would no longer accept a protected
>>> PDF!]. Nevertheless, if V4 is available free, it's worth a go.
>>
>> Hey, if password protection doesn't allow one to use the selection
>> tool, even a screenshot of a .pdf file can be pasted into a .jpg file.
>>
>> If a person is determined, there is a way. 80)>
>
> Done that, got the tee-shirt etc!
> However, the image I get is only 72 dpi, and usually needs a bit
> enhancement to get the OCR to recognise it well enough. AS you say,
> 300dpi is the minimum for decent results. I've asked this question
> before, and never got a satisfactory answer, ie 'How can you get a
> higher resolution?'
Resample the image to more pixels width by more pixels height, then
change the resolution to 300 dpi without changing the image size from
what you just increased it to. Doing this varies from graphics program
to graphics program and I don't know which you use, so I can't really
tell you how to do that. However, it works and this is one actual
instance where (from the viewpoint of the OCR program) you actually CAN
get information from where none existed before. This is only an illusion
though, because if you can't read some text, the OCR never will. If you
can, but the OCR can't, then it's only a matter of overcoming the
limitations that the human eye doesn't share with an OCR program.
--
Regards from John Corliss
I don't reply to trolls like Andy Mabbett or Doc (who uses sock puppets)
for instance. No adware, cdware, commercial software, crippleware,
demoware, nagware, PROmotionware, shareware, spyware, time-limited
software, trialware, viruses or warez for me, please.