Patent ID: 7123773
Filing Date: 2006-10-17
Classification: H04N

Abstract:
1. An image coding-decoding method comprising the steps of: performing a multiresolution transformation process on an image signal to obtain multiresolution transformed signals; performing a coefficient transformation process, which corresponds to a desired image processing, on said multiresolution transformed signals to obtain processed transformed signals which carry a processed image subjected to said desired image processing; performing a coding process on said processed transformed signals to obtain processed coded data which carries said processed image; and decoding said processed coded data and further performing an inverse multiresolution transformation process, to obtain a processed image signal which carries said processed image; wherein said coefficient transformation process is a process of performing transform on coefficients to produce an image similar to an image which can be obtained by performing at least one of gray-scale transformation processing, noise suppression processing, frequency enhancement processing, and dynamic range compression processing.