Abstract: A machine-implemented method and computerized system for superposing one graphic pattern on another graphic pattern wherein the graphics are represented and generated electrically by rectangular arrays of digital signals corresponding to dot raster patterns to be printed or displayed. One graphic is a superior, or dominant, graphic while a second graphic is an inferior, or recessive, graphic. A computer is programmed to process the digital signals for producing dominant graphic contoured intermediate arrays for masking the array of the inferior graphic to produce a partial or fragmented array. The partial array is DOT ORed with the dominant graphic array to produce a pattern of superposed graphics separated by a background space contoured to the dominant graphic pattern.