try to use page segmentation mode. E.g. "Treat the image as a single word"
(or text line or uniform block of text) will produce results.
As far as I remember discussion on this forum tesseract is not suitable for
handwritten text...

Zdenko


On Fri, Dec 28, 2012 at 11:55 PM, Nick Jalbert <[email protected]>wrote:

> I'm trying to use Tesseract to detect the presence of text in images.  I'm
> not concerned about the accuracy of the OCR, but would like Tesseract to
> return a non-empty answer if there is something in the picture.  I have a
> few questions:
>
> 1. Are there any other image processing algorithms/tools I should look
> into besides Tesseract for this task?
>
> 2. Are there any config settings I might want to tweak to make Tesseract
> behave better as a binary classifier?  I tried tweaking the "dictionary
> trust" settings as described in the FAQ, but didn't see much difference.
>
> 3. Attached are a few images that Tesseract 3.02.02 tells me are blank.
>  Are these just pathological cases, or am I doing something wrong?
>
> Thanks for any help!
> Nick
>
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