1. A method comprising: detecting, with a processor of a computing device, one or more registration signals from image data, wherein the image data includes electronic signals, and wherein the detecting includes processing the electronic signals to detect the one or more registration signals in the electronic signals; adding, with the processor of the computing device, two or more image blocks together from the image data to increase a signal-to-noise ratio of the one or more registration signals; determining, with the processor of the computing device, one or more frequency properties of the image data; identifying, with the processor of the computing device, a geometric transformation to which the image data is subjected based at least in part on the one or more detected registration signals and the one or more frequency properties; and using the identified geometric transformation to compute registered image data. combining the plurality of blocks to reconstruct an image corresponding to the image data.