Method of generating a scaled replica of a digital input image by

Abstract

An input image is comprised of an array of pixels in rows and columns. To generate a scaled replica of the input image, that input image is first partitioned into several identical sections, in which each section has P.sub.R pixels per row and P.sub.C pixels per column. Then the number of pixels-per-row P.sub.R ' and the number of pixels-per-column P.sub.C ' that are to be in each corresponding section of the scaled replica is selected, where P.sub.R ' and P.sub.C ' are any positive integers which can be larger or smaller than P.sub.R and P.sub.C. Then just a single section of the input image is distorted such that the spacing between columns is (P.sub.R '-1)x and the spacing between rows is (P.sub.C '-1)y, where x and y are arbitrary units of distance, such as one inch or one meter. Then the single distorted section of the input image is overlaid with a section of a new row-column array, where the spacing between columns is (P.sub.R -1)x and the spacing between rows is (P.sub.C -1)y, and where x and y are the same units of distance that are in the distorted input image. Then, using the above described spacings between the rows and the columns in the single distorted section of the input image and the overlaid new array, the pixels for all sections of the scaled replica are generated as a function of the various areas which those rows and columns delineate.