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pnc/ocr-shot.sh

Last active January 9, 2025 00:56
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ocr-shot.sh
#!/bin/bash
set -e
CONTENTS=$(tesseract -c language_model_penalty_non_dict_word=0.8 --tessdata-dir /usr/local/share/tessdata/ "$1" stdout -l eng | xml esc)
hex=$((cat <<EOF
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<string>$CONTENTS</string>
</plist>
EOF
) | plutil -convert binary1 - -o - | xxd -p | tr -d '\n')
xattr -w -x com.apple.metadata:kMDItemFinderComment "$hex" "$1"
mdimport "$1"
@smcnally
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smcnally commented Nov 2, 2019

This script is very helpful - thank you for sharing it.

I'm running macos 10.13.6 and needed to modify ocr-shot.sh to specify

--tessdata-dir /usr/local/share/tessdata/
vs
--tessdata-dir /usr/local/share/

ocr-shot.sh is now working as designed.

two notes:

  • I'm getting

"Warning: Invalid resolution 0 dpi. Using 70 instead."

macos-native and Firefox screenshots are 72 dpi. I'll look into where I can set that explicitly.

  • I presumed ocr-shot.sh's file meta additions would 1) change files' modified timestamp and 2) appear in either Finder or Preview Get Info views. Neither is the case. Adding the extracted text to files' Comments or Annotations could be useful.

@tianchentong
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why cannot Automator run the workflow, asserting "line 4 tesseract command not found"?

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