Envelope returned by ocrPdf.
mean_confidence is the average across pages with text (NaN if all empty). langs echoes the language(s) used so the caller can audit what was actually tried (especially relevant when defaulting to 'eng').
mean_confidence
langs
'eng'
Languages used for OCR (whatever the caller passed).
Mean confidence across pages with text. NaN if all pages empty.
Envelope returned by ocrPdf.
mean_confidenceis the average across pages with text (NaN if all empty).langsechoes the language(s) used so the caller can audit what was actually tried (especially relevant when defaulting to'eng').