Patent Document ID: 20130328860
Application ID: 13494134
Patent Status: 0

Claim One:
1. A computing device comprising: a processor enabled to: for each of at least two image areas mapped to a common image space, the common image space comprising a blend region where the at least two image areas overlap: assign a fixed image value to image pixels that are in a respective image area but outside the blend region, assign an initial, value to blend pixels in the blend region, and assign a fixed non-image value to non-image pixels in the common image space but outside the respective image area; iteratively sample pixels from the blend region in the common image space, and for each respective sampled pixel corresponding to the sampled pixel in a respective image area: change a value of the respective sampled pixel to an average of neighbouring pixel values in the respective image area; and, when each respective sampled pixel in each of the at least two image spaces is changed to the average of the neighbouring pixels, normalize, each averaged respective sampled pixel value to a blended value, wherein iterations are repeated until a convergence criteria is met; and output one or more blend masks, each comprising at least normalized blended pixel values in the blend region.