OCR (aka Optical Character Recognition) is an important building block for Open Food Facts. As most users feeds in images (convenient from mobile device), we have to extract information from those image, and OCR is one of the best way to do this.
Previously we were using Tesseract on demand (but not storing output)
- Uses the French dictionary for all languages
-- /home/off-fr/cgi# grep get_ocr * Ingredients.pm:use Image::OCR::Tesseract 'get_ocr'; Ingredients.pm: $text = decode utf8=>get_ocr($image,undef,'fra');
- Has a small custom dictionary for French ( /usr/share/tesseract-ocr/tessdata/fra.user-words)