Patent ID: 6754398
Filing Date: 2004-06-22
Classification: H04N

Abstract:
An image processing method for obtaining a processed image signal from an original image signal representing an original image by carrying out on the original image signal an image processing based on a signal representing information on a high frequency component of the original image signal, the method comprising the steps ofmaking band-limited image signals from the original image signal, obtaining a signal representing information on a high frequency component of the original image signal from the band-limited image signals on the basis of a predetermined transformation function, carrying out said image processing on the original image signal on the basis of the signal representing information on a high frequency component of the original image signal, and in which the band-limited image signals are obtained by carrying out multi-resolution transformation on the original image signal, and the signal representing information on a high frequency component of the original image signal is obtained by obtaining transformed band-limited image signals by transforming the band-limited image signals by use of a predetermined transformation function and carrying out inverse multi-resolution transformation on the transformed band-limited image signals.