There is disclosed an image processing apparatus in which original image data are compressed by encoding to a smaller quantity, then the image processing is conducted in such compressed form, and thus processed data are released with a high resolving power and a satisfactory tonal rendition....http://www.google.es/patents/US5812146?utm_source=gb-gplus-sharePatente US5812146 - Image processing apparatus using compressed data processing
Image processing apparatus using compressed data processing
