LINEAR-FILTERING OF IMAGES BASED ON PROPERTIES OF VISION

The design of linear image filters based on properties of human visual perception has been shown to require the minimization of criterion fu nctions in both the spatial and frequency domains. In this corresponde nce, we extend this approach to continuous filters of infinite support . For lowpass filters, this leads to the concept of an ideal lowpass i mage filter that provides a response that is superior perceptually to that of the classical ideal lowpass filter.