Offline training of hierarchical algorithms

A method for developing an enhancement model for visual data, the method comprising the steps of: receiving one or more sections of higher-quality visual data and one or more sections of lower-quality visual data corresponding to the one or more sections of higher-quality data. A hierarchical algorithm is then developed, wherein the hierarchical algorithm is operable to substantially reproduce the one or more sections of higher- quality visual data from the corresponding one or more sections of lower-quality visual data. The developed hierarchical algorithm is then stored in a library of developed hierarchical algorithms.