Umbral contraste

Especifique el umbral para el contraste (diferencia entre claro y oscuro) necesario en la imagen para identificar algo como borde. Introduzca el valor o cámbielo con los botones.

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.