
A composite electronic image of a straight line which is generated from the overlapping arrays of a multiple array scanner is linearly abutted by projecting a vertical footprint of a reference pattern onto the multiple arrays. A first count and a second count representative of the number of pixels obliterated by the footprint is taken within the overlapping zone of the arrays and outside of the overlapping zone, respectively. The difference between the counts is used to identify the crossover po...











