1. A method for improving resolution of a two-dimensional image capable of being acquired from an object at a first pixel size, comprising: defining a sampling region for producing said image at a second pixel size, said second pixel size being no larger than said first pixel size; sampling, with an overlapping increment, said sampling region thereby producing a multiplicity of sample layers, said overlapping increment being no larger than said first pixel size thereby determining said second pixel size; obtaining values of the pixels of the second pixel size in each of the multiplicity of sample layers; computing the value of each pixel of said second pixel size from the values of the corresponding pixels in the multiplicity of the sample layers, thereby producing an intermediate image; and dividing, in the Fourier domain, said intermediate image by a filtering function thereby producing said image at the second pixel size, said filter function being capable of representing artifacts from the multiple sampling.