/// <summary>
/// Gets the confidence percentile for the current element at the
specified level.
/// </summary>
public float GetConfidence(PageIteratorLevel level)
{
return TessApi.TessResultIteratorConfidence(Handle, level);
}
I use a custom .NET layer somewhat similar to Tesseract.net.
The Handle is returned from TessBaseAPIGetIterator() after a page is
recognized, and level defines the element type (PageIteratorLevel.Symbol
for characters, PageIteratorLevel.Word for words)
On Friday, October 12, 2018 at 1:20:51 AM UTC-6, Soumik Ranjan Dasgupta
wrote:
>
> Could you tell how did you get the confidence percentiles? I would like to
> know that. :)
>
> On Fri, Oct 12, 2018 at 10:10 AM farhad khalafi <farhad....@gmail.com
> <javascript:>> wrote:
>
>> I am totally puzzled with how the confidence reported at Word level
>> relates to the confidences assigned to the characters of the same word.
>>
>> I used the attached TIFF image to recognize a simple MICR line of a
>> check.
>>
>> The recognized text had two words:
>>
>> 495096 700000b01b205xX0eL00007010717
>>
>> The confidence percentiles for the words were 59% and 38% respectively.
>>
>> The confidence percentiles for the characters of the first word were
>> (rounded):
>>
>> 4 97%
>> 9 99%
>> 5 100%
>> 0 100%
>> 9 99%
>> 6 96%
>>
>> I would like to know how with such high confidence scores for individual
>> characters, one can compute the word level confidence at 59%.
>>
>> I ran this test using fast training data for English with no training of
>> my own. I am not worried about the accuracy, just curious about how to
>> interpret confidence scores.
>>
>> Thanks!
>>
>>
>>
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>
>
> --
> Regards,
> Soumik Ranjan Dasgupta
>
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