... Next: Statistical Analysis Up: Image Restoration and Previous: Restoration of HST . ... This presentation is devoted to the MEM (Maximum Entropy Method) task, version D, for image restoration in IRAF. Described in detail are its enhanced functions of Poisson noise only case handling and subpixelization technique; improved algorithms for maximization including the preconditioned conjugate method, accurate Newton method, the accurate one-dimensional search, and the model updating technique. ...