In-loop post filtering for video encoding and decoding

An apparatus for post filtering video data in an encoding or decoding process using hierarchical algorithms, comprising:

• at least one processor;
• and
• at least one memory including computer program code which, when executed by the at least one processor, causes the apparatus to:
• receive one or more input pictures of video data;
• transform, using one or more hierarchical algorithms, the one or more input pictures of video data to one or more pictures of transformed video data;
• and
• output the one or more transformed pictures of video data;
• wherein the transformed pictures of video data are enhanced for use within the encoding or decoding loop and wherein the method is performed in-loop within the encoding or decoding process.

A computer readable medium having computer readable code stored thereon for post filtering video data in an encoding or decoding process using hierarchical algorithms, the computer readable code, when executed by at least one processor, cause the at least one processor to:

• receive one or more input pictures of video data;
• transform, using one or more hierarchical algorithms, the one or more input pictures of video data to one or more pictures of transformed video data;
• and
• output the one or more transformed pictures of video data;
• wherein the transformed pictures of video data are enhanced for use within the encoding or decoding loop and wherein the method is performed in-loop within the encoding or decoding process.