sbb_textline_detection/README.md

# Textline-Recognition

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# Tool
This tool does textline detection of image and throw result as xml data.

# Models
In order to run this tool you need corresponding models. You can find them here:

https://file.spk-berlin.de:8443/textline_detection/

# Installation

sudo pip install .

# Usage

sbb_textline_detector -i 'image file name' -o 'directory to write output xml' -m 'directory of models'


## Usage with OCR-D
~~~
ocrd-example-binarize -I OCR-D-IMG -O OCR-D-IMG-BIN
ocrd_sbb_textline_detector -I OCR-D-IMG-BIN -O OCR-D-SEG-LINE-SBB -p '{ "model": "/path/to/the/models/textline_detection" }'
~~~

Segmentation works on raw RGB images, but respects and retains
`AlternativeImage`s from binarization steps, so it's a good idea to do
binarization first, then perform the textline detection. The used binarization
processor must produce an `AlternativeImage` for the binarized image, not
replace the original raw RGB image.