Patent ID: 7355610

Claim:
A method for expanding image data for display in which enlarged images are created from an original image comprising: providing a plurality of scale factors, each for defining a particular degree of enlargement of the original image; providing a plurality of sets of pixel replication sequences, one set being provided for each of the scale factors, each set including at least two pixel replication sequences; selecting a scale factor from the plurality of scale factors; selecting a pixel replication sequence from the set of pixel replication sequences for the selected scale factor, wherein the pixel replication sequence is selected so that a selected one of the pixels in the original image is mapped to a particular location in the enlarged image; selecting a first pixel of the original and mapping the selected first pixel into a first pixel location in the enlarged image; selecting a scale offset parameter; adding the selected scale factor to the selected scale offset, producing a first sum; comparing the first sum to a maximum sum; and determining a pixel of the original image to be mapped into a second pixel location in the enlarge image based on a result of the comparison.