Re: [tesseract-ocr] Improving accuracy on recognition Tesseract 4.3.1
He was referring to the tess4j version.
On Friday, March 15, 2019 at 4:48:05 AM UTC-5, 易鑫 wrote:
>
> The latest Tesseract version is 4.0.0,how do you get the 4.3.1 version?
>
> Alberto Andreotti > 于2019年2月25日周一
> 上午8:38写道：
>
>> Hello,
>>
>> You can try the OCR preprocessing in spark NLP, if you are on Python or
>> Scala.
>> Try to use the scaling option.
>>
>> Alberto.
>>
>> On Feb 24, 2019 2:21 PM, "'Nenad Kocev' via tesseract-ocr" <
>> tesser...@googlegroups.com > wrote:
>>
>>> Hello, I recently discovered Tesseract and I've been using it to extract
>>> digits from images using tess4j library. With the settings posted bellow I
>>> get around 85% accuracy of recognition.
>>> Is there a way to get 100% accuracy. I have example of an image in the
>>> attachments. Other images may differ only in number of digits they have and
>>> may also contain special characters like ",+-". Thanks for your help.
>>>
>>> Settings:
>>>
>>> tesseract.setPageSegMode(7); // text is in single line
>>>
>>> tesseract.setTessVariable("tessedit_char_whitelist", ",+-0123456789");
>>> tesseract.setTessVariable("load_system_dawg ", "false");
>>> tesseract.setTessVariable("load_freq_dawg ", "false");
>>>
>>>
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>>>
>>>
>>> .
>>> For more options, visit https://groups.google.com/d/optout.
>>>
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>>
>>
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>
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Re: [tesseract-ocr] Improving accuracy on recognition Tesseract 4.3.1
The latest Tesseract version is 4.0.0,how do you get the 4.3.1 version?
Alberto Andreotti 于2019年2月25日周一 上午8:38写道：
> Hello,
>
> You can try the OCR preprocessing in spark NLP, if you are on Python or
> Scala.
> Try to use the scaling option.
>
> Alberto.
>
> On Feb 24, 2019 2:21 PM, "'Nenad Kocev' via tesseract-ocr" <
> tesseract-ocr@googlegroups.com> wrote:
>
>> Hello, I recently discovered Tesseract and I've been using it to extract
>> digits from images using tess4j library. With the settings posted bellow I
>> get around 85% accuracy of recognition.
>> Is there a way to get 100% accuracy. I have example of an image in the
>> attachments. Other images may differ only in number of digits they have and
>> may also contain special characters like ",+-". Thanks for your help.
>>
>> Settings:
>>
>> tesseract.setPageSegMode(7); // text is in single line
>>
>> tesseract.setTessVariable("tessedit_char_whitelist", ",+-0123456789");
>> tesseract.setTessVariable("load_system_dawg ", "false");
>> tesseract.setTessVariable("load_freq_dawg ", "false");
>>
>>
>> --
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>> Visit this group at https://groups.google.com/group/tesseract-ocr.
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/tesseract-ocr/be275b8f-1c58-4793-b2c3-545bc2e5ac74%40googlegroups.com
>>
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
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>
> .
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>
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Re: [tesseract-ocr] Improving accuracy on recognition Tesseract 4.3.1
Hello,
You can try the OCR preprocessing in spark NLP, if you are on Python or
Scala.
Try to use the scaling option.
Alberto.
On Feb 24, 2019 2:21 PM, "'Nenad Kocev' via tesseract-ocr" <
tesseract-ocr@googlegroups.com> wrote:
> Hello, I recently discovered Tesseract and I've been using it to extract
> digits from images using tess4j library. With the settings posted bellow I
> get around 85% accuracy of recognition.
> Is there a way to get 100% accuracy. I have example of an image in the
> attachments. Other images may differ only in number of digits they have and
> may also contain special characters like ",+-". Thanks for your help.
>
> Settings:
>
> tesseract.setPageSegMode(7); // text is in single line
>
> tesseract.setTessVariable("tessedit_char_whitelist", ",+-0123456789");
> tesseract.setTessVariable("load_system_dawg ", "false");
> tesseract.setTessVariable("load_freq_dawg ", "false");
>
>
> --
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> "tesseract-ocr" group.
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> Visit this group at https://groups.google.com/group/tesseract-ocr.
> To view this discussion on the web visit https://groups.google.com/d/
> msgid/tesseract-ocr/be275b8f-1c58-4793-b2c3-545bc2e5ac74%
> 40googlegroups.com
>
> .
> For more options, visit https://groups.google.com/d/optout.
>
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[tesseract-ocr] Improving accuracy on recognition Tesseract 4.3.1
Hello, I recently discovered Tesseract and I've been using it to extract
digits from images using tess4j library. With the settings posted bellow I
get around 85% accuracy of recognition.
Is there a way to get 100% accuracy. I have example of an image in the
attachments. Other images may differ only in number of digits they have and
may also contain special characters like ",+-". Thanks for your help.
Settings:
tesseract.setPageSegMode(7); // text is in single line
tesseract.setTessVariable("tessedit_char_whitelist", ",+-0123456789");
tesseract.setTessVariable("load_system_dawg ", "false");
tesseract.setTessVariable("load_freq_dawg ", "false");
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