This is a pre-production deployment of Warehouse, however changes made here WILL affect the production instance of PyPI.
Latest Version Dependencies status unknown Test status unknown Test coverage unknown
Project Description

Description

kraken is a fork of ocropus intended to rectify a number of issues while preserving (mostly) functional equivalence. Its main goals are:

  • Explicit input/output handling ✓
  • Word and character bounding boxes in hOCR ✓
  • Removal of runtime dependency on gcc ✓
  • clstm compatibility ✓
  • Right-to-left/BiDi support ✓
  • Clean public API
  • Tests

Ticked of goals have been realized while some others still require further work. Pull requests and code contributions are always welcome.

Installation

kraken does not require a working C compiler on run-time anymore. When using a recent version of pip all dependencies will be installed from binary wheel packages, so installing build-essential or your distributions equivalent is often unnecessary.

If clstm support is desired (highly recommended) the associated python extension has to be build and installed.

Install kraken either from pypi:

$ pip install kraken

or by running pip in the git repository:

$ pip install .

Finally you’ll have to scrounge up an RNN to do the actual recognition of characters. To download ocropus’ default RNN and place it in the kraken directory for the current user:

$ kraken get default

A list of libre models available in the central repository can be retrieved by running:

$ kraken list

Quickstart

Recognizing text on an image using the default parameters including the prerequisite steps of binarization and page segmentation:

$ kraken -i image.tif image.txt binarize segment ocr

To binarize a single image using the nlbin algorithm:

$ kraken -i image.tif bw.tif binarize

To segment a binarized image into reading-order sorted lines:

$ kraken -i bw.tif lines.txt segment bw.png

To OCR a binarized image using the default RNN and the previously generated page segmentation:

$ kraken -i bw.tif image.txt ocr --lines lines.txt

All subcommands and options are documented. Use the help option to get more information.

Documentation

Have a look at the documentation

Release History

Release History

0.9.0

This version

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0.7.6

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0.7.5

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0.7.4

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0.7.3

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0.7.2

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0.7.1

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0.7.0

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0.6.3

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0.6.2

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0.6.2.dev1

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0.5.0

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0.4.7

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0.4.6

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0.4.5

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0.4.5.dev1

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0.4.4

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0.4.3

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0.4.2

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0.4.1

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0.3.4

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0.3.3

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0.3.1.post11

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0.3.1.post10

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0.3.1

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0.2.5

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0.2.4

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0.2.3

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0.2.2

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0.1.0

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0.1-dev

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
kraken-0.9.0-py2.py3-none-any.whl (89.5 kB) Copy SHA256 Checksum SHA256 py2.py3 Wheel Nov 3, 2016
kraken-0.9.0.tar.gz (5.1 MB) Copy SHA256 Checksum SHA256 Source Nov 3, 2016

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