Patent ID: 8045006

Claim:
A method for determining a best blending function from among a plurality of blending functions, each of the plurality of blending functions for smoothing an overlap region of at least two projected images, comprising: (a) projecting at least a first image onto a display area; (b) projecting at least a second image onto the display area at the same time the first image is being projected, the second image overlapping the first image in an overlap portion of the display area to form an overlap image; (c) applying a first blending function while performing steps (a) and (b); (d) capturing at least the overlap image and storing the overlap image; (e) analyzing the stored overlap image for at least a first smoothness quality to calculate a first smoothness result; (f) analyzing the projection of the first or second image for at least a second smoothness quality to calculate a second smoothness result, wherein the second smoothness quality is different from the first smoothness quality; (g) combining the first and second smoothness results into a paired smoothness result; (h) performing steps (a) to (g) for at least one additional blending function; (i) comparing the paired smoothness result of the first blending function to the paired smoothness result of the at least one additional blending function to determine a best blending function.