Benjamin Admin 2b1c499d54 fix(ocr-pipeline): filter OCR noise from image areas and artifacts ...

Two generic noise filters added to _ocr_single_cell():

1. Word confidence filter (conf < 30): removes low-confidence words
   before text assembly.  Catches trailing artifacts like "Es)" after
   real text, and standalone noise from image edges.

2. Cell noise filter: clears cells whose entire text has no real
   alphabetic word (>= 2 letters).  Catches fragments like "E:", "3",
   "u", "D", "2.77", "and )" from image areas, while keeping real
   short words like "Ei", "go", "an".

Both filters apply to word-lookup AND cell-OCR fallback results.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-03-02 09:56:54 +01:00

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