Small script to generate all boxes for ocrd-train

[Lorenzo Bolzani]

Hi,

I wrote this small script to speed up OCRD-train training startup.

It generates the boxes for all the images provided on the command line (it works only for single line images).

It is a simple conversion of the generate_line_box.py from ocrd-train. I used it once, it seems to work fine.

Currently with OCR-D the boxes and lstmf generation is very slow because it starts a new process for each image.

I execute this script before calling the makefile.

I do the "shell expansion" in python so that it can handle a very long list of files.

So you need to call it in this way:

python generate_all_line_boxes.py -i 'data/train/*.tif'

with single quotes to prevent shell expansion.

BTW, it would be nice to have the same thing for the lstmf files.

Bye

Lorenzo

[Shree Devi Kumar]

Please submit as a  PR to https://github.com/tesseract-ocr/tesstrain

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