Tesseract-ocr - Revision history

Prwheatley at 15:00, 8 June 2021

2021-06-08T15:00:30Z

Prwheatley at 12:04, 21 April 2021

2021-04-21T12:04:46Z

Jukervin: Added links to GitHub source commits and issues.

2020-07-03T07:00:32Z

Added links to GitHub source commits and issues.

Jukervin: Updated Output formats. Removed dead development RSS feeds. Replacement GitHub atom feeds don't seem to work https://github.com/tesseract-ocr/tesseract/commits/master.atom

2020-07-03T06:45:49Z

Updated Output formats. Removed dead development RSS feeds. Replacement GitHub atom feeds don't seem to work https://github.com/tesseract-ocr/tesseract/commits/master.atom

Jukervin: Updated homepage link to Github. Added category ALTO format

2020-07-03T06:40:34Z

Updated homepage link to Github. Added category ALTO format

Prwheatley at 17:12, 30 October 2014

2014-10-30T17:12:25Z

Lreilly at 14:30, 4 October 2014

2014-10-04T14:30:00Z

Lreilly at 14:28, 4 October 2014

2014-10-04T14:28:45Z

Lreilly at 14:23, 4 October 2014

2014-10-04T14:23:37Z

Lreilly at 14:12, 4 October 2014

2014-10-04T14:12:41Z

@@ Line 5: / Line 5: @@
 |license=Apache 2.0 License EXCEPT the tesseractTrainer.py, which is licensed with GPL
 |platforms=Linux, Windows, MacOSX
 |function=OCR
-|content=ALTO format
+|content=Image
 }}
 {{Infobox tool details

@@ Line 1: / Line 1: @@
-{{Infobox_tool
+{{Infobox tool
 |purpose=Open source OCR engine, accepting uncompressed TIFF files as input
 |homepage=https://github.com/tesseract-ocr/tesseract
 |license=Apache 2.0 License EXCEPT the tesseractTrainer.py, which is licensed with GPL
 |platforms=Linux, Windows, MacOSX
 }}
 = Description =
 Tesseract is probably the most accurate open source OCR engine available. Combined with the [http://leptonica.com/ Leptonica Image Processing Library] it can read a wide variety of image formats and convert them to text in over 60 languages. It was one of the top 3 engines in the 1995 UNLV Accuracy test. Between 1995 and 2006 it had little work done on it, but since then it has been improved extensively by Google.
@@ Line 64: / Line 62: @@
 Issues : https://github.com/tesseract-ocr/tesseract/issues

@@ Line 61: / Line 61: @@
 = Development Activity =
 {{Infobox_tool_details
 |ohloh_id=tesseract-ocr
 }}

@@ Line 36: / Line 36: @@
 GIF is not supported [http://www.leptonica.com/library-overview.html http://www.leptonica.com/library-overview.html].
 ===Output generated===
-Tesseract outputs to TXT. PDF output was added in version 3.03.
+plain text, hOCR (HTML), PDF, invisible-text-only PDF, TSV and ALTO (XML)
 ==Documentation and support==
@@ Line 61: / Line 61: @@
 = Development Activity =
 {{Infobox_tool_details
 |ohloh_id=tesseract-ocr
 }}

@@ Line 2: / Line 2: @@
 |purpose=Open source OCR engine, accepting uncompressed TIFF files as input
 |image=Tesseract.png
-|homepage=http://code.google.com/p/tesseract-ocr/
+|homepage=https://github.com/tesseract-ocr/tesseract
 |license=Apache 2.0 License EXCEPT the tesseractTrainer.py, which is licensed with GPL
 |platforms=Linux, Windows, MacOSX
@@ Line 9: / Line 9: @@
 <!-- Delete the Categories that do not apply -->
 [[Category:OCR]]
@@ Line 19: / Line 20: @@
 ==Licensing and cost==
-Tesseract is an Open Source OCR engine, available under the [http://www.apache.org/licenses/LICENSE-2.0 Apache 2.0 license]. It can be used directly, or (for programmers) using an [http://code.google.com/p/tesseract-ocr/source/browse/trunk/api/baseapi.h API].
+Tesseract is an Open Source OCR engine, available under the [http://www.apache.org/licenses/LICENSE-2.0 Apache 2.0 license]. It can be used directly, or (for programmers) using an [https://github.com/tesseract-ocr/tesseract/blob/master/include/tesseract/baseapi.h API].
 ==History==
@@ Line 60: / Line 61: @@
 = Development Activity =
 ==Google Code Source Feed==
 Below the last 5 source updates:

@@ Line 42: / Line 42: @@
 *Support is offered and issues are addressed on the [https://code.google.com/p/tesseract-ocr/issues/list Issues] page of the project site.
-=Included in=
+==Included in==
 *Integration with the free [http://www.dcc.ac.uk/resources/external/xena-software-0 Xena-Digital Preservation Software][http://sourceforge.net/projects/xena/?source=navbar http://sourceforge.net/projects/xena/?source=navbar]
 *Integration with Free Online OCR [http://www.free-ocr.com/faq.html http://www.free-ocr.com/faq.html]

@@ Line 41: / Line 41: @@
 *Installation information is found on the [https://code.google.com/p/tesseract-ocr/wiki/ReadMe ReadMe] page of the project site.
 *Support is offered and issues are addressed on the [https://code.google.com/p/tesseract-ocr/issues/list Issues] page of the project site.
 ==Usability==
@@ Line 47: / Line 51: @@
 = User Experiences =
 *Lazorchak, Butch. (2014). Making Scanned Content Accessible Using Full-text Search and OCR [http://blogs.loc.gov/digitalpreservation/2014/08/making-scanned-content-accessible-using-full-text-search-and-ocr/ http://blogs.loc.gov/digitalpreservation/2014/08/making-scanned-content-accessible-using-full-text-search-and-ocr/]
 *Texas A&M University. (2012-). Early Modern OCR Project Workflow [http://emop.tamu.edu/about http://emop.tamu.edu/about http://emop.tamu.edu/about http://emop.tamu.edu/about]
@@ Line 54: / Line 57: @@
 *Lacy, David. (2014). Digital Library upgrade provides enhanced discovery [http://blog.library.villanova.edu/digitallibrary/2014/02/18/digital-library-upgrade-provides-enhanced-discovery/#sthash.OwCtLlEc.dpuf http://blog.library.villanova.edu/digitallibrary/2014/02/18/digital-library-upgrade-provides-enhanced-discovery/#sthash.OwCtLlEc.dpuf]
 *Applied in an AQuA Mashup that resulted in the Solution page: [http://wiki.opf-labs.org/display/AQuA/Compare+OCR+results+of+the+same+source+material+in+different+formats+%28TIFF%2C+JP2%29 Compare OCR results of the same source material in different formats (TIFF, JP2)]
-==Experiences with software integrating Tesseract==
 = Activity Feeds =

@@ Line 4: / Line 4: @@
 |homepage=http://code.google.com/p/tesseract-ocr/
 |license=Apache 2.0 License EXCEPT the tesseractTrainer.py, which is licensed with GPL
-|platforms=LInux, Windows, MacOSX
+|platforms=Linux, Windows, MacOSX
 }}
@@ Line 26: / Line 26: @@
 ==Platform and interoperability==
 *The latest downloads for Linux and Windows are found on [https://drive.google.com/folderview?id=0B7l10Bj_LprhQnpSRkpGMGV2eE0&usp=sharing GoogleDrive]. Older versions of Tesseract and its language packs are found on the discontinued [https://code.google.com/p/tesseract-ocr/downloads/list Google Code download page].
-*The easiest way to install Tesseract on Mac OSX is with [https://www.macports.org/ MacPorts]. Once it is installed, you can install Tesseract by running the command ''sudo port install tesseract'', and any language with ''sudo port install tesseract-<langcode>''. List of available langcodes can be found onMacPorts tesseract page. A list of available langcodes can be found on the [https://www.macports.org/ports.php?by=name&substr=tesseract- MacPorts Tesseract page].
+*The easiest way to install Tesseract on Mac OSX is with [https://www.macports.org/ MacPorts]. Once it is installed, you can install Tesseract by running the command ''sudo port install tesseract'', and any language with ''sudo port install tesseract-<langcode>''. A list of available langcodes can be found on the [https://www.macports.org/ports.php?by=name&substr=tesseract- MacPorts Tesseract page].
-*Dependencies for running Tesseract on the Linux system include Autotools and [http://www.leptonica.org/ Leptonica] . The Windows version requires installation of [http://msdn.microsoft.com/en-us/vstudio/aa718325.aspx Visual Studio]. More information about required Ubantu libraries and links to specific requirements are on the [https://code.google.com/p/tesseract-ocr/wiki/Compiling Tesseract Wiki].
+*Dependencies for running Tesseract include Autotools and [http://www.leptonica.org/ Leptonica] . The Windows version requires installation of [http://msdn.microsoft.com/en-us/vstudio/aa718325.aspx Visual Studio]. More information about required Ubantu libraries and links to specific requirements are on the [https://code.google.com/p/tesseract-ocr/wiki/Compiling Tesseract Wiki].
 *Other programs such as Scan Tailor, unpaper, ImageJ, Gimp or ImageMagick may be needed to properly prepare images for use in Tesseract.
 ==Functional notes==
 ===Input supported===
-Any image readable by Leptonica is supported in Tesseract including BMP, PNM, PNG, JFIF, JPEG, TIFF.
+Any image readable by Leptonica is supported in Tesseract including BMP, PNM, PNG, JFIF, JPEG, and TIFF.
 GIF is not supported [http://www.leptonica.com/library-overview.html http://www.leptonica.com/library-overview.html].
 ===Output generated===
@@ Line 40: / Line 40: @@
 *Smith, Ray (2007). An Overview of the Tesseract OCR Engine [http://static.googleusercontent.com/media/research.google.com/en/us/pubs/archive/33418.pdf http://static.googleusercontent.com/media/research.google.com/en/us/pubs/archive/33418.pdf ]
 *Installation information is found on the [https://code.google.com/p/tesseract-ocr/wiki/ReadMe ReadMe] page of the project site.
-*Support is offered and issues are addressed on the [https://code.google.com/p/tesseract-ocr/issues/list Issues] page of project site.
+*Support is offered and issues are addressed on the [https://code.google.com/p/tesseract-ocr/issues/list Issues] page of the project site.
 ==Usability==
@@ Line 49: / Line 49: @@
 ==Experiences with Tesseract==
 *Lazorchak, Butch. (2014). Making Scanned Content Accessible Using Full-text Search and OCR [http://blogs.loc.gov/digitalpreservation/2014/08/making-scanned-content-accessible-using-full-text-search-and-ocr/ http://blogs.loc.gov/digitalpreservation/2014/08/making-scanned-content-accessible-using-full-text-search-and-ocr/]
-*Texas A&M University. (2012-). Early Modern OCR Project Workflow [http://emop.tamu.edu/about http://emop.tamu.edu/about]
+*Texas A&M University. (2012-). Early Modern OCR Project Workflow [http://emop.tamu.edu/about http://emop.tamu.edu/about http://emop.tamu.edu/about http://emop.tamu.edu/about]
-*Adams, Chris. (2014). Content Search on a Budget-using Tesseract on large TIFF files[http://chris.improbable.org/2014/3/17/content-search-on-a-budget/ http://chris.improbable.org/2014/3/17/content-search-on-a-budget/]
+*Adams, Chris. (2014). Content Search on a Budget-using Tesseract on large TIFF files [http://chris.improbable.org/2014/3/17/content-search-on-a-budget/ http://chris.improbable.org/2014/3/17/content-search-on-a-budget/]
 *PSNC Digital Libraries Team. (2011). Tesseract 3.0 installation on Ubuntu 10.10 server [http://dl.psnc.pl/2011/01/24/tesseract-3-0-installation-on-ubuntu-10-10-server/ http://dl.psnc.pl/2011/01/24/tesseract-3-0-installation-on-ubuntu-10-10-server/]
 *Lacy, David. (2014). Digital Library upgrade provides enhanced discovery [http://blog.library.villanova.edu/digitallibrary/2014/02/18/digital-library-upgrade-provides-enhanced-discovery/#sthash.OwCtLlEc.dpuf http://blog.library.villanova.edu/digitallibrary/2014/02/18/digital-library-upgrade-provides-enhanced-discovery/#sthash.OwCtLlEc.dpuf]