Abstract: An electronic focus correction system is provided. The invention (10) is adapted to correct focus aberrations in an electronic imaging system which provides electrical signals representative of a scene of image data. The invention includes a memory (12) for providing sets of weighting coefficients and a two dimensional convolver (18) for multiplying the input electrical signals corresponding to a window in and around each pixel of image data by a set of the weighting coefficients. The two dimensional convolved (18) assigns to each pixel a value equal to the sum of the products of the coefficients times the electrical signals within each window to provide a plurality of weighted output signals. The output signals constitute a corrected image. A controller (20), responsive to the output of the two dimensional convolver (18), is provided to measure the figure of merit for the corrected image.