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30 lines
1003 B
Markdown
30 lines
1003 B
Markdown
# Textline-Recognition
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## Introduction
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This tool performs textline detection from document image data and returns the results as PAGE-XML.
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## Installation
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`pip install .`
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## Models
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In order to run this tool you also need trained models. You can download our pre-trained models from here:
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https://file.spk-berlin.de:8443/textline_detection/
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## Usage
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`sbb_textline_detector -i <image file name> -o <directory to write output xml> -m <directory of models>`
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## Usage with OCR-D
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~~~
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ocrd-example-binarize -I OCR-D-IMG -O OCR-D-IMG-BIN
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ocrd_sbb_textline_detector -I OCR-D-IMG-BIN -O OCR-D-SEG-LINE-SBB \
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-p '{ "model": "/path/to/the/models/textline_detection" }'
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~~~
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Segmentation works on raw RGB images, but respects and retains
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`AlternativeImage`s from binarization steps, so it's a good idea to do
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binarization first, then perform the textline detection. The used binarization
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processor must produce an `AlternativeImage` for the binarized image, not
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replace the original raw RGB image. |