Stealth scanno

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A stealth scanno (also stealtho) is a specific type of scanno that occurs when a character forms a valid word in the OCR text, but is not the word that appears in the page image.

  • EXAMPLE: and in the page image appears as arid in the OCR text.

Distributed Proofreaders's coining if this term was inspired by stealth bombers, which are undetectable by radar, because stealth scannos are undetectable by normal spellcheck utilities.

ftealth fcanno

See ftealth fcanno article.

Proofers and Project Managers

See the Proofing Advice page, which contains links to lists of common stealth scannos in various languages.


Post-processing tools useful for finding and correcting stealth scannos include: