1. A method, comprising: identifying a corresponding set of pixels along a segment in a source image that are to be blended to generate color values for a pixel location in a target image; determining whether the set of pixels along the segment in the source image are of threshold similarity based on a shifting color similarity threshold, the shifting color similarity threshold dynamically adjusted according to an interpolation algorithm usage count in previous images; and if the set of pixels along the segment in the source image are of threshold similarity, determining the color values of the pixel location of the target image based on fewer pixels along the segment in the source image than if the set of pixels along the segment in the source image are not of threshold similarity.