Returns the next active node. If it is connected to the sink, it stays in the list, otherwise it is removed from the list */

Converts arcs added by 'add_edge()' calls to a forward star graph representation. Linear time algorithm. No or little additional memory i

This function can be used to change the label of any pixel at any time */

/ Performs alpha-expansion for regular grid graph for case when energy terms are NOT */ specified by a function */

/ Performs alpha-expansion for regular grid graph for case when energy terms are NOT */ specified by a function */

/ Performs alpha-expansion for regular grid graph for case when energy terms are NOT */ specified by a function */

Destructor. Deallocates all items added so far */

Destructor. Deallocates all items added so far */