Digital image processing in the light of some newer aspects of low-level visual processing

The mammalian retina behaves like an intelligent network, capable of extracting very rich edge information in the visual cortex, from the image falling on it. It then transfers the computed values to the brain node, located further interior, for carrying out more sophisticated information processing tasks, all in real time. In this paper a simple mechanism for implementing the mammalian retina on a three-dimensional vision chip has been suggested. Moreover, although the inner layers of retina are known to elicit non-linear responses, we have shown here that even such a simple linear analogue can yield some very effective bio-mimetic tools for the purpose of digital image processing.