Relative Data Redundancy and Compression Ratio Relative Data Redundancy Compression Ratio R=1- n R n, Types of data redundancy 1.Coding redundancy 2.Spatial and temporal redundancy--Interpixel redundancy 3.Irrelevant information--Psychovisual redundancy Relative Data Redundancy and Compression Ratio R D C R 1  1 Relative Data Redundancy Compression Ratio 2 1 n n CR  Types of data redundancy 1. Coding redundancy 2. Spatial and temporal redundancy -- Interpixel redundancy 3. Irrelevant information -- Psychovisual redundancy