A device and process for encoding a gradation image of an image transmission system. In order to reduce the amount of transmission data while preserving an edge component sensitive to a human's visual characteristic in a half tone image considering similarity between blocks, a block to be encoded is...http://www.google.es/patents/US5442459?utm_source=gb-gplus-sharePatente US5442459 - Process for encoding a half tone image considering similarity between blocks
Process for encoding a half tone image considering similarity between blocks
