Unshake is a free program that can be used to enhance photos that are blurred, out of focus, or shaky. It utilizes the results of its analysis to produce clearer images. Most image processing programs offer pre-set filters which have been found to be effective after extensive use. These filters work by emphasizing the differences in the images, such as edges. Deconvolvers, on the other hand, attempt to recover the original scene, but require exact information about how the image was blurred in the first place.
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