ABSTRACT

A partition operator applied to the rows of a matrix from the left and a reverse partition operator applied to the columns of a matrix from the right yield a blocked matrix. As long as the number of row partitions times the number of column partitions equals the number of images, the map between matrix blocks and image indices is a one-to-one map. The single image index becomes two indices within a logical two-dimensional grid, and each block is labeled with two co-dimension indices within the grid.