How to read the text from images(OCR) where the font style is 7 segment font.

Question

1.00/5 (2 votes)

See more:

I have been working on extracting text from images, specifically focusing on seven-segment fonts, using .NET. Unfortunately, my attempts with popular libraries like Tesseract, IronOcr and many more have been unsuccessful, as they seem to excel with normal English fonts.

Despite many efforts, I'm facing challenges in accurately extracting text from images with seven-segment fonts.

Link to Image Dataset Folder :
https://drive.google.com/drive/folders/1b4S-UQbxaXZPbDfOkTiC1m0qTIt6fdb7

What I have tried:

1. Tesseract (Limited to normal English fonts, unable to recognize seven-segment characters)
2. IronOcr (Similar limitations, not suitable for seven-segment fonts)
3. Leadtools
4. pretrained models
5. custom trained models
6. some matlab and python projects from internet
7. some free OCR Api providers

8.Additionally, I've experimented with image processing techniques, including:
Cropping and zooming to the text region.
Applying gray, black and white, and binarization filters.

Posted 30-Jan-24 0:44am

Member 16192432

Updated 30-Jan-24 1:05am

Add a Solution

Comments

[no name] 30-Jan-24 13:57pm

If you can't find a solution, you'll obviously have to create your own using "AI" and "machine learning" (pattern recognition).

Maciej Los 31-Jan-24 13:53pm

Agree. And i believe that it could the path through torment for person who never worked with AI.

[no name] 31-Jan-24 14:09pm

Have to know where to start. Except with the "new" (AI) searches, I can never find what I used to; I can only go by my own (offline) archives. It's just a bunch of images of the characters in different "warps". i.e. it goes beyond "nice neat characters".

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)