Variable transformation hierarchical image coding

A method for the decoding of an image encoded according to an encoding method comprising the following steps:

• the definition of a hierarchical meshing having at least two nested meshing levels formed by mesh units defined by peaks;
• the determining, for each of said mesh units, of a piece of error information between said image to be encoded and an interpolated image obtained from the peaks of the mesh units belonging to the meshing level of the mesh units considered;
• putting a stop to the refining of the mesh units having a piece of error information below a predetermined first threshold;
• the implementation of a specific encoding for the mesh units having a piece of error information above a second predetermined threshold;
• the continuation of the refining of the mesh units having a piece of error information above said first predetermined threshold and below said second predetermined threshold;
• characterized in that it comprises the following steps:
• the preliminary decoding of said data encoded according to said encoding, implementing a hierarchical meshing, enabling the description of an initial representation;
• the complementary decoding of said data encoded by means of said specific encoding, enabling the refining of said initial representation.