1. A computer-implemented method for viewing images on an interactive computing device, the method comprising: receiving a plurality of images of nominally the same scene wherein the plurality of images comprises a main image having a main focus measure, and one or more sub-images having sub-image focus measures different from the main focus measure; displaying the main image on a display device; detecting a user selecting a portion of the main image and providing one or more motion inputs wherein: the one or more motion inputs specify a first motion direction or a second motion direction; responsive to the user selecting the portion of the main image and providing the one or more motion inputs, determining whether the one or more motion inputs indicate the first motion direction or the second motion direction; in response to determining that the one or more motion inputs indicate the first motion direction or the second motion direction, determining from the one or more sub-images, a first sub-image that depicts at least the portion of the main image and has a first focus measure that is different than the main focus measure; creating a modified main image by modifying the portion of the main image using the portion of the first sub-image; displaying the modified main image on the display device wherein, responsive to the user selecting a particular point in said portion of the main image, the steps of determining said first sub-image and creating the modified main image include: determining, in the main image, a refocus region comprising a grouping of pixels that includes the particular point; determining a size and a location of the refocus region; based, at least in part, on the size and the location of the refocus region of the particular point within the main image, determining a magnification factor; based, at least in part on the magnification factor and the location of the refocus region, determining a modified refocus region within the main image; determining said first sub-image, from the one or more sub-images, as one that depicts at least a part of the refocus region and for which the focus measure is different than the main focus measure; and modifying the main image by modifying the modified refocus region using contents of said first sub-image, and wherein the method is performed using one or more computing devices.