[Insight-users] LabelObject OCR with numbers

[Juan Vidal]

What about using Sergio's idea in a "per-number" basis?

You could substract the x-positoin of the leftmost pixel of the number to
its CentroidX, and maybe that result will help you to differenciate both
numbers.

Good luck!



2010/9/27 Christian Werner <christian.werner at rwth-aachen.de>

>  Thanks for the response, but the CentroidX already changes with the
> position of the number. So if I am analyzing a sequence of numbers "146998"
> the CentroidX will be different than in the sequence "6138549".
>
> This is really funny, who is responsible for that? Why use 9 symbols to
> represent 10 digits? :)
>
>
>
> Am 27.09.2010 17:02, schrieb Sergio Vera:
>
> Hello
> Maybe it's a crazy/stupid/already tried idea but, what about adding
> CentroidX to the list of features? I would say that '6' should have the
> centroid more to the left and '9' more to the right...
>
>  HTH
>
>  Sergio
>
> On Mon, Sep 27, 2010 at 4:44 PM, Christian Werner <
> christian.werner at rwth-aachen.de> wrote:
>
>>  Hi!
>>
>> I am doing a nice little OCR for some numbers. See the attached image. I
>> can identify each number as an object. When I look at each object's
>> attributes, I see a fatal similarity between the number '6' and '9':
>>
>> 0: Size: 18 - Elongation: 1.44449 - Flatness: 1.44449 - CentroidY: 6
>> 1: Size: 10 - Elongation: 3.65503 - Flatness: 3.65503 - CentroidY: 6
>> 2: Size: 15 - Elongation: 2.06489 - Flatness: 2.06489 - CentroidY: 6
>> 3: Size: 15 - Elongation: 1.86812 - Flatness: 1.86812 - CentroidY: 6
>> 4: Size: 16 - Elongation: 1.63288 - Flatness: 1.63288 - CentroidY: 6
>> 5: Size: 17 - Elongation: 1.7793 - Flatness: 1.7793 - CentroidY: 6
>> 6: Size: 19 - Elongation: 1.54404 - Flatness: 1.54404 - CentroidY: 6
>> 7: Size: 12 - Elongation: 2.50164 - Flatness: 2.50164 - CentroidY: 7
>> 8: Size: 19 - Elongation: 1.53748 - Flatness: 1.53748 - CentroidY: 6
>> 9: Size: 19 - Elongation: 1.54404 - Flatness: 1.54404 - CentroidY: 6
>>
>> Which means, that I can't distinguish '6' from a '9'. Does anybody have
>> any idea how I could do that?
>>
>> Best regards,
>>  Christian
>>
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>
>
> --
> Sergio Vera
>
>  Alma IT Systems
>  C/ Vilana, 4B, 4º 1ª
>  08022 Barcelona
>  T. (+34) 932 380 592
>  www.alma3d.com
>
>
>
> _____________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Kitware offers ITK Training Courses, for more information visit:
> http://www.kitware.com/products/protraining.html
>
> Please keep messages on-topic and check the ITK FAQ at:
> http://www.itk.org/Wiki/ITK_FAQ
>
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-- 
Juan Vidal Allende
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