Tesseract OCR
github.com
Tesseract OCR
1–10 of 66 posts
Re: Tesseract OCR
#2I’ve seen Tesseract pop up on almost all archive.org files. Never got around to look into it further, thanks for the link!
Re: Tesseract OCR
#3I tried to use this library to process nutrition labels for a fitness app. Sometimes took 40 seconds to process, which is unacceptable for a phone app. I remember seeing a video where a google product used a neural net and resolved the same info in 1 sec or so.
Re: Tesseract OCR
#4> Tesseract was originally developed at Hewlett-Packard Laboratories Bristol and at Hewlett-Packard Co, Greeley Colorado between 1985 and 1994, with some more changes made in 1996 to port to Windows, and some C++izing in 1998. In 2005 Tesseract was open sourced by HP. From 2006 until November 2018 it was developed by Google.
I have used Tesseract for OCRing scanned books and it was great. I had no idea it was so old, nor that it had been through so many maintainers. To all of them past and present, thank you.
Re: Tesseract OCR
#5> Tesseract was originally developed at Hewlett-Packard Laboratories Bristol and at Hewlett-Packard Co, Greeley Colorado between 1985 and 1994, with some more changes made in 1996 to port to Windows, and some C++izing in 1998. In 2005 Tesseract was open sourced by HP. From 2006 until November 2018 it was developed by Google. I have used Tesseract for OCRing scanned books and it was great. I had no idea it was so old,…
I have permission to publish an ebook edition of an out of print history of Portland, Oregon. I haven’t found the time to work on the project.
One point of friction has been selecting an OCR workflow. Any chance you would share what you’ve been successful with?
Re: Tesseract OCR
#6I finally figured out how to use the Tesseract CLI utility on macOS today (installed from Homebrew). It's really neat - you can use it to turn a PNG into a PDF with embedded text, which you can then copy-and-paste: https://til.simonwillison.net/tesseract/tesseract-cli
I learned about it from this post: https://alexn.org/blog/2020/11/11/organize-index-screenshots...
Re: Tesseract OCR
#7I tried to use this library to process nutrition labels for a fitness app. Sometimes took 40 seconds to process, which is unacceptable for a phone app. I remember seeing a video where a google product used a neural net and resolved the same info in 1 sec or so.
How long ago did you try it?
"Tesseract 4 adds a new neural net (LSTM) based OCR engine which is focused on line recognition, but also still supports the legacy Tesseract OCR engine of Tesseract 3 which works by recognizing character patterns."
Re: Tesseract OCR
#8Eagerly waiting for the alpha version 5! It's been 2 years since the stable 4.1 release.
Re: Tesseract OCR
#9I finally figured out how to use the Tesseract CLI utility on macOS today (installed from Homebrew). It's really neat - you can use it to turn a PNG into a PDF with embedded text, which you can then copy-and-paste: https://til.simonwillison.net/tesseract/tesseract-cli I learned about it from this post: https://alexn.org/blog/2020/11/11/organize-index-screenshots...
I used it on Android through Termux, it was quite handy to convert a large amount of image-based files to text in a pinch.
Re: Tesseract OCR
#10I have found EasyOCR to be more accurate in OCR than tesseract. Curious to learn about HN-ers experience with those tools.