Patent ID: 7257276

Claim:
A digital image interpolation method, comprising: determining a projection point (x, y) of an original image corresponding to a pixel of a transformed image; according to the coordinates (m, n) of neighboring pixels of the projection point, determining a plurality of Gauss weights W i associated to each neighboring pixel; and according to the Gauss weight Wi and a color value Vi of each neighboring pixel, computing a color value f (x, y) of the projection point; wherein determining a plurality of Gauss weights W i associated to each neighboring pixel according to the coordinates (m, n) of the neighboring pixels of the projection point is performed by computing the following formula: W i =e −r√{square root over ((x−m) 2 +(y−n) 2 )}, wherein r is a coefficient calculated from the relation: Σ (i=1, 4) W i =1.