Color restoration techniques for faded colors of old photos, printings and paintings. - Ayman M. T. Ahmed (EIT, 2009)

A new image transform for a more crop-resilient NPT. - Ayman M. T. Ahmed; Dwight D. Day (EIT, 2009)

Enhanced frequency pattern of the 2-D Hartley transform for a new crop-resilient image transform. - Ayman M. T. Ahmed (Integr. Comput. Aided Eng., 2010)