# Confidence Threshold

The matching score between any character in the string and any character from the trained font must exceed the accept threshold before the character can be given a Read result. In addition, the highest matching score must exceed the matching score for all other characters in the trained font by a confidence threshold that you specify.

If the difference between the highest matching score and any other matching score does not exceed this threshold, the OCRMax returns a Confused result for this character in the string, which indicates this character is too close in resemblance to another character in the font to be classified accurately for your vision application.

By default, the confidence threshold is set to 0, so the OCRMax cannot generate confusion results. Increase the confidence threshold if you become concerned that the OCRMax tool classifies character incorrectly, for example verifying that a character key is a “3” when it appears as an “8” in your acquired image.