seven segment display - 4.0 traineddata

[ShreeDevi Kumar]

Hi,

I have built a 4.0 traineddata using some seven segment display fonts. Trained mostly on numbers 0-9, capital letters A-Z, : etc.

It is uploaded as a zip file at https://github.com/Shreeshrii/tessdata4alpha/raw/master/ssd1.zip

unzip to get ssd1.traineddata 

​I have not tested it much. Seemed to work with the sample images provided in this email.

Since B and 8, O and 0, S, Z and 5 all look similar in this display, there would be errors.

Should this be trained just for numbers, may have a better accuracy then.

​I am doing another run of training to see if there are improvements.

Meanwhile, those who actually want this should give it a try and provide feedback.

ShreeDevi
____________________________________________________________
भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com

On Fri, Mar 24, 2017 at 3:04 PM, <komala...@gmail.com> wrote:

Hello, 

I am basically working in electronics field and new to C#.Currently I am working on one project (Image processing in C#) where i am using C#,where in one of the part i have to detect text or digits of 7 segment display image for that on google i found Tesseract  solution.

For experiment i have first try to convert normal text image in to text file and it is working fine for some of the basic images but it is not working with 7 segment display.so i came to know i required trained data file for 7 segment.

For training 7 segment data i follow the steps which are shown in vidoe of below link:https://www.youtube.com/watch?v=i_1-hGsXxy8.

But the output.txt file showing in that video is not generating in my case.Due to which after using trained 7 segment data file ,i am getting garbage value in text file.So for checking that i am getting proper trained file or not , i have follow the procedure which is shown on that video but it is giving an error  like outpt.txt file not found.Is this happened because of missing otput.txt file or something else i am missing to do.I have follow all the steps which are shown in that video for training 7 segment data.

Also i have installed jTessBoxEditorFX.jar, serak trainer & Tesseract-ocr v3.02.So at the end i am just stuck in the point where i don't know where i am going wrong,is my procedure is wrong or software installation is not proper because after installing tesseract there is red cross mark against tesseract.

Please somebody help me to figure it out.If possible please provide me 7 segment trained data file and also the exact steps to trained 7 segment data as i have to trained some more files for various display icons and some specific messages.Its very urgent as my project is stuck and i am helpless because after trying so much solutions in image processing for 7 segment display detection like pixel count & image comparison in C#, i came up on tesseract solution.

If you have any doubts on understanding  my query please let me know.

Please do the needful.

--
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-ocr+unsubscribe@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/b7fc9a05-8d8d-4e68-ac02-2e71b0078557%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[ShreeDevi Kumar]

FYI - this was trained using eng.traineddata and finetuned with 7segment fonts.

ShreeDevi
____________________________________________________________
भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com

[Dominik Helleberg]

Hi, the download gives a 404 error :( 

Since I'm trying to detect 7 segment displays with tesseract 4, i would really like to try it out.

Do you have the download still at hand somewhere?

Thanks!

To unsubscribe from this group and stop receiving emails from it, send an email to tesser...@googlegroups.com.

[Shree Devi Kumar]

I had deleted the files but can rerun the training again.

It will be helpful if you can provide a sample text of the kind of display you are trying to recognize - eg. is it just digits,  or also includes letters - which ones, only uppercase??? Please provide at least 100 lines of text.

A sample image as well as any info on similar looking fonts will be helpful.

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/b1bf50a7-6d94-485e-877a-86027310a265%40googlegroups.com.

For more options, visit https://groups.google.com/d/optout.

--

[Dominik Helleberg]

Hi,

I'm want to read 7-segment LED-Displays like this. I'm also investigating CNNs at the moment as I'm not sure if tesseract is the right choice here.

Any opinions?
Cheers

Dominik

To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/b1bf50a7-6d94-485e-877a-86027310a265%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

--

[Shree Devi Kumar]

Take a look at 

https://www.unix-ag.uni-kl.de/~auerswal/ssocr/ 

https://github.com/auerswal/ssocr

https://github.com/arturaugusto/display_ocr 

[Shree Devi Kumar]

Hi Dominik,

Please see https://github.com/Shreeshrii/tessdata_ssd/issues/1

The repo has a few traineddata files that you can try.

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/940fea7d-c787-4e16-8953-47f9bcb15360%40googlegroups.com.

For more options, visit https://groups.google.com/d/optout.

[Dominik Helleberg]

thx will give it a try!

Cheers

Dominik

To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/CAG2NduX8tbZeW2r1nTqU7PH_V%3DV-kR8iEVkZPrYMGXSs626byA%40mail.gmail.com.

[Bhakti Shah]

Hey Dominik, Is ssd.traineddata working for you?

Are you getting decimal point?

To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/940fea7d-c787-4e16-8953-47f9bcb15360%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

--

____________________________________________________________
भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com

--
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 tesser...@googlegroups.com.
To post to this group, send email to tesser...@googlegroups.com.
Visit this group at https://groups.google.com/group/tesseract-ocr.

[Shubham Trivedi]

Hello where can I find training data which contains only numbers and no alphabets or special characters