Perfect, That is really helpful.
Hope you are having awesome day :)
On 05/30/2018 01:00 PM, ShreeDevi Kumar wrote:
See https://github.com/OCR-D/ocrd-train/issues/7
You can use the utilities listed there for creating linelevel images
from page images. Make matching ground truth text files. and train.
ShreeDevi
____________________________________________________________
भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com
On Wed, May 30, 2018 at 4:27 PM, Ramast Magdy <[email protected]
<mailto:[email protected]>> wrote:
1. collect utf-8 text in Coptic (DONE)
2. Find Coptic unicode fonts, if you can find one similar to the
typewriter font used in books it will make training easier
I tried but couldn't find such font. There are not that many
Coptic fonts to being with.
Can't I just extract few samples of each letter from the old books?
3. train a model with these and then finetune it with line images
and matching ground truth
I think I got this one.
After extracting sample letters. arrange them randomly into
separate lines (image for each line) and provide the text in a
file with similar name.
That's a good idea but since I am trying to train for reading old
books, how can I account for things like slight page tilt during
scanning for example?
Also while at it, is there a tool I could use to split book pages
into separate lines so that I can give it as part of training
(along with it's text of course)
On 05/30/2018 12:44 PM, ShreeDevi Kumar wrote:
I am trying a test training for coptic for tess4, will let you
know where to access traineddata.
You can train using utf-8 textand unicode optic fonts.
1. collect utf-8 text in Coptic
2. Find Coptic unicode fonts, if you can find one similar to the
typewriter font used in books it will make training easier
3. train a model with these and then finetune it with line images
and matching ground truth
ShreeDevi
____________________________________________________________
भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com
On Wed, May 30, 2018 at 4:09 PM, Ramast Magdy
<[email protected] <mailto:[email protected]>> wrote:
Thank you ShreeDevi for both moheb's link and the one below.
The current one uses Tesseract 3 and according to the author:
"Recognition quality of Coptic texts containing old fonts
will be very poor, depending on the trained data."
I will get in contact with him to see if we can use the other
link you provided
https://github.com/OCR-D/ocrd-train
<https://github.com/OCR-D/ocrd-train>
To train Tesseract 4.00
Thank you very much
On 05/30/2018 06:31 AM, ShreeDevi Kumar wrote:
See http://www.moheb.de/ocr.html <http://www.moheb.de/ocr.html>
It provides a traineddata file for Coptic for use with
tesseract version 3.
ShreeDevi
____________________________________________________________
भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com
On Tue, May 29, 2018 at 9:57 PM, <[email protected]
<mailto:[email protected]>> wrote:
Hi,
I belong to a group who study an old Egyptian writing
system called "Coptic".
It's based mostly on Greek (with some variation).
Big majority of books written in Coptic where during the
last century and were mostly the same [typewriter] font.
Here is a sample picture:
https://imgur.com/a/ILRw6vm
And sample book:
https://archive.org/download/pistissophiaopu00petegoog
<https://archive.org/download/pistissophiaopu00petegoog>
We need to add Coptic to languages supported by
Tesseract but not sure how.
I tried following this document
https://github.com/tesseract-ocr/tesseract/wiki/TrainingTesseract-4.00
<https://github.com/tesseract-ocr/tesseract/wiki/TrainingTesseract-4.00>
but it's very difficult to understand.
We need someone help us with the initial setup so that
we can dedicate our man power to training the system.
We are none profit group so we are hoping for free help
but we would also consider paid help since the
alternative is hundreds of hours of man labor to
digitalize just few books.
Thanks everyone for contributing to this awesome project
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