Patent ID: 7006112

Claim:
A method for scaling an image frame comprising steps of: (a) storing an image frame consisting of n rows and m columns of data; (b) performing a first-dimension and a second-dimension image scaling operations on a first image portion of said image frame, said first image portion including the first to the pth rows and the first to the qth columns of data, where 1<p≦n and 1<q≦m; (c) performing said first-dimension and said second-dimension image scaling operations on a second image portion of said image frame after said step (b) if said p is not equal to n, said second image portion including the ath to tth rows and the first to the bth columns of data, where 1<a<t≦n, t>p, and 1<b≦m; and (d) performing said first-dimension and said second-dimension image scaling operations on a third image portion of said image frame after said step (c) if said q is not equal to m, said third image portion including the first to dth rows and the eth to the fth columns of data, where 1<e<f≦m, f>q, and 1<d≦n.