Patent Document ID: 4517607
Application ID: 06437781
Patent Status: 1

Claim One:
1. In an image reproduction system, a method of compensating an image, which is formed by a plurality of pixels each being provided with one of two different conditions, by compensating a condition of observed one of the pixels or object pixel in accordance with conditions of the pixels adjacent to the object pixel or surrounding pixels, comprising the steps of: (a) supplying the image reproduction system with an image signal containing image information; and (b) compensating an image in response to the input image signal and delivering a compensated signal which indicates a condition of the object pixel; step (b) comprising the steps of delivering an MTF compensated signal through MTF compensation which accentuates boundary portions of an image in response to the image signal, and carrying out random noise compensation to remove smear from the image in response to the MTF compensated signal and signals indicative of conditions of the surrounding pixels.