server lacks a keyboard pointing device graphics adapter and or display moreover the storage device can be local and or remote from the computer such as embodied within a storage area network san as is known in the art the computer is adapted to execute computer program modules for providing functionality previously described herein in one embodiment program modules are stored on the storage device loaded into the memory and executed by the processor an embodiment proposes an innovation for image enhancement by implementing control theory concepts combination of feedback and feed forward loops and making such kind of iterative learning control structure is introduced as a novel image enhancement method the following block diagram presents a feedback image enhancement is depicted in fig1 in the above diagram x i j old represents of the image intensity at pixel i j u i j is controller and x i j new is the result of applying controller on pixel i j various enhancement measures which already have been developed see table 1 or new developed measures could be used in the proposed algorithm in the mentioned image enhancement technique feed forward loop imparts a local enhancement while the repetitive loop make the enhancement in global form the enhanced image at pixel i j is constructed by the.