BoofCV
OCRmyPDF
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BoofCV | OCRmyPDF | |
---|---|---|
20 | 77 | |
1,036 | 11,936 | |
- | 4.3% | |
8.5 | 9.6 | |
about 6 hours ago | 10 days ago | |
Java | Python | |
Apache License 2.0 | Mozilla Public License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
BoofCV
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Recommended camera/projector calibration software?
BoofCV https://github.com/lessthanoptimal/BoofCV
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JDK 21 - Image Performance Improvements
Is there any fast way to get pixel values and pixel coordinate? I had to jump through a lot of hoops to get convert BufferedImages into a format that's useful for image processing it to be a reasonable speed in BoofCV. getRGB() is glacial. At one point I was trying to convince the JDK team to make private data structures public again. Right now it's inconsistent what you have access too.
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Mobile device based surface defect detection for manufacturing quality control
Apologizes if this post runs afoul of the rules. This is a product we are making that started as an open source project (here).
- BoofCV 0.40 Released. Micro QR Code, Transposed QR Codes, Speed improvements, Strict null enforcement
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The Ancient Secrets of Computer Vision
I will take the opportunity to call out one of my favourite libraries, BoofCV (http://boofcv.org)
It comes with a wonderful demonstration tool that allows you to apply the various included algorithms to images and tweak the parameters in real-time β including the Hough transform. A great tool for helping to understand how these kinds of algorithms work!
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Good Open Source Repositories that Accepts New Contributors
Speaking of using the vector api, I see there's a class in boofcv that converts rgb to hsv. I've previously written a simd accelerated version of rgb to hsv using the java vector api. For anybody looking to do a bit of code janitor work, converting the one-off library into something that could be contributed to /u/lessthanoptimal's project might be a worthwhile contribution.
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JavaFX .jar (from clojure) won't find "glass" when run via `java -jar`
For instance I looked at BoofCV and all I found was : https://github.com/lessthanoptimal/BoofCV/issues/265 " the question now seems to be can you compile the library as native. The answer is probably but someone needs to try it."
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BoofCV v0.38 Release Summary
It's an all-Java computer vision library, see https://boofcv.org/ and https://github.com/lessthanoptimal/BoofCV
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BoofCV v0.38: Much improved scene reconstruction, loop closure, more concurrency. Also updated PyBoof
project website: https://boofcv.org
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Feedback Requested on Updated BoofCV QR Code Tutorial
There really is a community for everything on Reddit... Anyways, so I've updated the tutorial on QR Codes in BoofCV. If you're not familiar with it, BoofCV is a computer vision library that also includes a high quality QR Code scanner. Plenty of benchmarks and examples can be found on the website to back that up. Here's a link to the tutorial page and please let me know if it all makes sense. The tutorial focuses on applications which are either command line or have a GUI.
OCRmyPDF
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TextSnatcher: Copy text from images, for the Linux Desktop
Try https://github.com/ocrmypdf/OCRmyPDF - it uses Tesseract behind the scenes and it absolutely brilliant.
- FLaNK Stack Weekly 19 Feb 2024
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Calibre β New in Calibre 7.0
I recommend running any such PDFs through OCRmyPDF.
https://github.com/ocrmypdf/OCRmyPDF
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A better document viewer
If by "like a photocopy" you mean the file contains images of text rather than text, the MacOS viewer presumably does OCR on the images. I don't know if there's a Linux document viewer with that capability built-in, but a quick search turned up the standalone tool OCRmyPDF.
- Gibts ein (CLI) tool, das Kontrast und Helligkeit von gescannten Textdokumenten dynamisch anpasst?
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OCR for a full pdf on Neoreader
For anyone interested I solved the problem by first ocr files through the free and open source software ocrmypdf avaible here
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ELI5: why is PDF such a widespread text format, instead of a format that's actually easier to edit?
ocrmypdf is nice for stuff like that.
- Donut: OCR-Free Document Understanding Transformer
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massive crop and OCR newspaper
Use imagemagick to convert them to PDF and ocrmypdf to straighten and OCR. See this explanation.
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OCR pdf and just keep the OCR text
Fair enough, maybe this might work for you, it should seperate the text from image anyway and if you have Adobe acrobat it should be able delete the background too with the edit function. It may already be able to do that if you haven't tried it
What are some alternatives?
OpenCV - Open Source Computer Vision Library
PaddleOCR - Awesome multilingual OCR toolkits based on PaddlePaddle (practical ultra lightweight OCR system, support 80+ languages recognition, provide data annotation and synthesis tools, support training and deployment among server, mobile, embedded and IoT devices)
EasyOCR - Ready-to-use OCR with 80+ supported languages and all popular writing scripts including Latin, Chinese, Arabic, Devanagari, Cyrillic and etc.
pdfplumber - Plumb a PDF for detailed information about each char, rectangle, line, et cetera βΒ and easily extract text and tables.
fSpy - A cross platform app for quick and easy still image camera matching
tesserocr - A Python wrapper for the tesseract-ocr API
Tesseract.js - Pure Javascript OCR for more than 100 Languages πππ₯
Paperless-ng - A supercharged version of paperless: scan, index and archive all your physical documents
Codename One - Cross-platform framework for building truly native mobile apps with Java or Kotlin. Write Once Run Anywhere support for iOS, Android, Desktop & Web.
invoice2data - Extract structured data from PDF invoices
pdfminer.six - Community maintained fork of pdfminer - we fathom PDF