Iamge coding-decoding method, image coding-decoding system, image coder, image decoder, and storage medium

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 coding process on said multiresolution transformed signals to obtain coded data;
• decoding said coded data to obtain decoded transformed signals;
• performing a coefficient transformation process, which corresponds to a desired image processing, on said decoded transformed signals to obtain processed transformed signals which carry a processed image subjected to said desired image processing;
• and
• performing an inverse multiresolution transformation process on said processed transformed signals to obtain a processed image signal which carries said processed image.

An image coding-decoding system comprising:

• multiresolution transformation means for performing a multiresolution transformation process on an image signal to obtain multiresolution transformed signals;
• coefficient transformation means for 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;
• coding means for performing a coding process on said processed transformed signals to obtain processed coded data which carries said processed image;
• decoding means for decoding said processed coded data;
• and
• inverse multiresolution transformation means for performing an inverse multiresolution transformation process on said processed transformed signals to obtain processed image signals which carry said processed image.

An image coding-decoding system comprising:

• multiresolution transformation means for performing a multiresolution transformation process on an image signal to obtain multiresolution transformed signals;
• coding means for performing a coding process on said multiresolution transformed signals to obtain coded data;
• decoding means for decoding said coded data to obtain decoded transformed signals;
• coefficient transformation means for performing a coefficient transformation process, which corresponds to a desired image processing, on said decoded transformed signals to obtain processed transformed signals which carry a processed image subjected to said desired image processing;
• and
• inverse multiresolution transformation means for performing an inverse multiresolution transformation process on said processed transformed signals to obtain processed image signals which carry said processed image.

An image coder comprising:

• multiresolution transformation means for performing a multiresolution transformation process on an image signal to obtain multiresolution transformed signals;
• coefficient transformation means for 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;
• and
• coding means for performing a coding process on said processed transformed signals to obtain processed coded data which carries said processed image.

An image decoder comprising:

• decoding means for decoding coded data to obtain decoded transformed signals;
• coefficient transformation means for performing a coefficient transformation process, which corresponds to a desired image processing, on said decoded transformed signals to obtain processed transformed signals which carry a processed image subjected to said desired image processing;
• and
• inverse multiresolution transformation means for performing an inverse multiresolution transformation process on said processed transformed signals to obtain a processed image signal which carries said processed image.

A computer readable storage medium recording a program for making a computer execute an image coding-decoding method, the program having:

• a procedure of performing a multiresolution transformation process on an image signal to obtain multiresolution transformed signals;
• a procedure of 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;
• a procedure of performing a coding process on said processed transformed signals to obtain processed coded data which carries said processed image;
• and
• a procedure of decoding said processed coded data and further performing an inverse multiresolution transformation process, to obtain a processed image signal which carries said processed image.

A computer readable storage medium recording a program for making a computer execute an image coding-decoding method, the program having:

• a procedure of performing a multiresolution transformation process on an image signal to obtain multiresolution transformed signals;
• a procedure of performing a coding process on said multiresolution transformed signals to obtain coded data;
• a procedure of decoding said coded data to obtain decoded transformed signals;
• a procedure of performing a coefficient transformation process, which corresponds to a desired image processing, on said decoded transformed signals to obtain processed transformed signals which carry a processed image subjected to said desired image processing;
• and
• a procedure of performing an inverse multiresolution transformation process on said processed transformed signals to obtain a processed image signal which carries said processed image.