AVavmich·Dec 21, 2016
https://github.com/tesseract-ocr/tesseract/blob/master/READM...
"The latest stable version is 3.04.01, released in February 2016."
Was version 4 ever released?
In Ionic OCR demotesseract-ocr
tesseract
C++2015–2025
tesseract-ocr / tesseract
tesseract
Tesseract Open Source OCR Engine (main repository)
68Distinct people
68Mentions
0Explicit recommenders
77.5KGitHub stars
What to know before exploring
What it is
Tesseract Open Source OCR Engine (main repository)
GitHub
Where it is used
No documented product use was verified in the last source check.
What people are saying
No recommendation phrase was found in the indexed comments.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
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This week on Hacker News
Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 8:03:49 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year68 dated mentions
Observed mentions: 2015-06-25 09:19:10 UTC to 2025-10-20 12:25:52 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2015 | 2015-01-01 00:00:00 UTC | 2016-01-01 00:00:00 UTC | 4 | 0 | 4 |
| 2016 | 2016-01-01 00:00:00 UTC | 2017-01-01 00:00:00 UTC | 7 | 0 | 7 |
| 2017 | 2017-01-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 9 | 1 | 8 |
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 4 | 3 | 1 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 8 | 1 | 7 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 9 | 0 | 9 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 6 | 2 | 4 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 3 | 0 | 3 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 6 | 0 | 6 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 6 | 1 | 5 |
| 2025 | 2025-01-01 00:00:00 UTC | 2026-01-01 00:00:00 UTC | 6 | 1 | 5 |
What Hacker News says
7 sourcesYeah, in the past, I've had to scale my own scans/photos to get good results. The tesseract github site mentions this:
"Tesseract works best on images which have a DPI of at least 300 dpi, so it may be beneficial to resize images."
- https://github.com/tesseract-ocr/tesseract/wiki/ImproveQuali...
In Show HN: Tesseract.js – Pure JavaScript OCR for 60 LanguagesYour comment (zoomed in Chrome on Win 10): http://i.imgur.com/uuFhw90.png
Tesseract.js analysis:
Although Googie's API is certaihiy better,
Tesseract.js should work simiiarly if you
increase the font size.
Screenshots taken
on 'retiha’ devices are around the smailest
text it can handie well.
Edit:
A screenshot of the same text at a higher
resolution:
httgs:[[imgurxomZaN/UGu
Tesseract.js
output: httgs://imguricom[a[hiIfM
This is a neat toy, but not impressive compared to the results from tesseract-ocr/tesseract [0]:
$ curl -s http://i.imgur.com/uuFhw90.png \
| tesseract stdin stdout
Although Google's API is certainly better,
Tesseract.js should work similarly if you
increase the font size.
Screenshots taken on 'retina' devices are
around the s
Read the rest
mallest text it can handle well.
Edit:
A screenshot of the same text at a higher
resolution: https:[ZimguncomlalWHGu
Tesseract.js output:
https:[[imgur.com[a[nilfM
Notice how Tesseract.js results suffer from being unable to differentiate between n's and h's, i's and l's.
[0] https://github.com/tesseract-ocr/tesseract
Is this at all affiliated with the already-existing tesseract OCR library? It doesn't seem to be from my cursory check so if not you need to rename your library, because you're ripping off their name.
https://github.com/tesseract-ocr/tesseract
In Show HN: Tesseract.js – Pure JavaScript OCR for 60 LanguagesTesseract[0] is a system that is broken in to different parts, at least one does layout analysis and another does the actual OCR. Output is a different layer again. I believe it is an open source adaptation of what Google used for its books project. The interface was less than polished a few years ago, to the point where getting it running at all was rather difficult. However, for multilingual work (including Chinese) it is probably ideal.[1] Note that if you are scanning books there are now some interesting open hardware systems appearing online that turn pages and take photos with cameras, so you can scan books - without cutting them up - to a high resolution.
[0] https://github.com/tesseract-ocr/tesseract
[1] https://github.com/tesseract-ocr/langdata
In Ask HN: What is the best open source OCR software supporting multiple languages?Would you mind commenting why Tesseract is out of date? I see developers are still active on it:
https://github.com/tesseract-ocr/tesseract/commits/master
In Doc2text – Detect text blocks and OCR poorly scanned PDFs in bulkFor scanned images we use https://github.com/tesseract-ocr/tesseract. For text based PDFs we pull the text directly from the file and all languages are supported.
In Show HN: Convert PDF files into structured data