During license plate recognition, the binary license plate image is horizontally projected along the Y axis to
obtain the longest successive projection segment as the character area, and the successive horizontal black
lines around the licence plate are filtered out. This method is called ( ).
During license plate recognition, the binary license plate image is horizontally projected along the Y axis to
obtain the longest successive projection segment as the character area, and the successive horizontal black
lines around the licence plate are filtered out. This method is called ( ).