Seuil de contraste

Spécifiez le seuil de contraste (différence entre clair et foncé) requis dans l'image pour identifier quelque chose comme un bord. Entrez la valeur ou modifiez la valeur à l'aide des boutons.

The default value is 10, and the specifiable range is from 1 to 200.
If the average contrast of the contour of the found region is below this threshold, then the region will not be considered as a flaw. Faint flaws can be detected when a lower threshold value is specified, but some flaws may be recognized larger and the contour fuzzier. On the other hand, faint 'flaws' are not found when a higher threshold value is specified, and only apparent flaws are found. If the contour of a flaw is fuzzier than you expected it would be, increase this value.