选择Blobs (Evision)

C++

// Sort by decreasing area
Blobs.SortObjectsUsingFeature(OBJ_AREA, OBJ_SORT_DESCENDING);

// Enumerate objects, using a list pointer
EListItem* pObject;

// Start at the beginning of the list
pObject= Blobs.GetFirstObjPtr();

// Loop on the selected objects
for (Count= ; Count < Blobs.GetNumSelectedObjects(); Count++)
{ // Retrieve object area
Blobs.GetObjectFeature(OBJ_AREA, pObject, n32Area);

// Process object area
...

// Next object
pObject= Blobs.GetNextObjPtr(pObject);
}