An image processing system has a first apparatus and a second apparatus the resolutions of which differ from each Other. The first apparatus includes an input unit for inputting image data, a smoothing unit for smoothing the image data and a coding unit for coding the image data outputted by the smoothing...http://www.google.fr/patents/US6088489?utm_source=gb-gplus-shareBrevet US6088489 - Image data resolution conversion
