I can't get accurate ocr of this can anyone help with settings?

104 views
Skip to first unread message

jean-charles compagnon

unread,
Jan 2, 2017, 12:49:38 AM1/2/17
to tesseract-ocr
I have attached the captcha that I cannot decode.
I get very bad results. it's not even close.


Captcha.jpg

Allistair C

unread,
Jan 2, 2017, 3:53:45 AM1/2/17
to tesser...@googlegroups.com
The whole point of a captcha is to evade automated reading. That's why letters are very close together and letters are heavily rotated off a consistent baseline. OCR is designed for normal text input so you need to do clever preprocessing here first.

Sent from my iPhone

On 2 Jan 2017, at 03:54, jean-charles compagnon <jccom...@kioui-apps.com> wrote:

I have attached the captcha that I cannot decode.
I get very bad results. it's not even close.


--
You received this message because you are subscribed to the Google Groups "tesseract-ocr" group.
To unsubscribe from this group and stop receiving emails from it, send an email to tesseract-oc...@googlegroups.com.
To post to this group, send email to tesser...@googlegroups.com.
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/40762270-5e8c-4b5d-bc43-ce348b26e44f%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
<Captcha.jpg>

Tom Morris

unread,
Jan 2, 2017, 6:21:41 PM1/2/17
to tesseract-ocr
On Monday, January 2, 2017 at 12:49:38 AM UTC-5, jean-charles compagnon wrote:
I have attached the captcha that I cannot decode.

It says YNXAJB. 

Or do you mean your computer program can't decode it? In that case, it sounds like it is working as intended. 
Reply all
Reply to author
Forward
0 new messages