Skip to Main Content
Cognex 지원 허브
LogoLogo

OCR Reads Scored Above the Acceptance Threshold but Failed

Fix for OCR tool issue found on Wafer ID products

2024. 09. 14.

Details

Event:

Attempt to read SEMI OCR fails despite the score exceeding the accept threshold.

Probable Causes:

  • Any of the OCR characters are below the Character Threshold.
  • A SEMI checksum is not added to OCR character, but "SEMI" or "SEMI with Virtual" is specified for the checksum. 

Solution:

  • Look at the score for every character in OCR and if any of them is below the "Character Threshold" then lower the "Character Threshold" value below that character's score.
  • Try setting the checksum to "Virtual".