LEARNED IMAGE TRANSFORMATION METHODS AND SYSTEMS IN GRAPHICS RENDERING

Transforming rendered frames in a graphics processing system to obtain enhanced frames with desired characteristics of a set of target images includes selecting a plurality of shaders, each defined by a parametrized mathematical function arranged to replicate a particular visual characteristic. For each shader, parameters of the parametrized mathematical function have been derived in dependence on a set of target images so that the shader is arranged to impose its respective particular visual characteristic in dependence on an extent to which the particular visual characteristic is exhibited in the target images. The plurality of shaders are combined to form a pipeline, obtaining one or more rendered frames, applying the pipeline to at least a portion of the one or more rendered frames to obtain enhanced frames, and outputting for display the enhanced frames, wherein the enhanced frames exhibit visual characteristics of the target images.