myWidgets.insert( HIST_TYPE, histType );
QDoubleSpinBox* thresholdValue = new QDoubleSpinBox();
thresholdValue->setRange( 0, 254 );
- thresholdValue->setValue( 128 );
+ // 1 is a good default value for the threshold. It means that we are very permissive
+ // about what will be considered INSIDE the zone we want to find the frontier of
+ // This makes the algorithm more robust against a bit inhomogeneous parts in the zone
+ // that we want to delimitate.
+ // The drawback is if we want to delimitate a zone wich color is very similar to the zone
+ // we consider as the OUTSIDE, the result will be bad.
+ // The current use cases are more of the first form :
+ // - Strongly contrasted INSIDE and OUTSIDE zones
+ // - Small inhomogenities in each zone
+ thresholdValue->setValue( 1 );
myWidgets.insert( THRESHOLD_VALUE, thresholdValue );
QDoubleSpinBox* maxThreshold = new QDoubleSpinBox();
maxThreshold->setRange( 1, 255 );
