a method of making second generation halftone images lacking visible interference , includes selecting an image which has been halftoned ; determining the number of tone levels required for each pixel of the halftoned image ; identifying a halftone cell size ; arranging a dot growth pattern to offset initial dot growth from the center of the halftone cell by defining sub - cells and growing the dot pattern relative to the sub - cell ; and growing a dot pattern in a second generation halftone of the selected image .