Methods and systems for sub-pixel rendering with gamma adjustment

A display system comprising:

• a display panel substantially comprising an arrangement of sub-pixel elements in a least two primary colors;
• input image data receiving circuitry configured to receive sampled data of an image comprising a plurality of first data values, each of the first data values indicating a value for a primary color in the image;
• local averaging circuitry configured to receive a subset of sampled data comprising said first data values and indicating a region of the image;
• said local averaging circuitry further configured to compute, for each of said first data values in said subset, an average of said first data value and at least one other first data value in the subset;
• a gamma adjustment component configured to receive said averages and to generate gamma-adjusted data values for said first data values in said subset using said averages;
• a sub-pixel rendering component configured to receive said gamma-adjusted data values and to produce an output data value for each of said sub-pixel elements on the display panel;
• a plurality of output data values collectively forming sub-pixel rendered image data indicating an output image;
• driver circuitry configured to send signals indicating said sub-pixel rendered image data to said display panel for rendering on said display panel.

A machine readable medium storing instructions, said instructions when executed by a processor causing the processor to render sampled data of an image on a display panel substantially comprising an arrangement of sub-pixel elements in at least two primary colors;

• said instructions when executed by a processor performing a method comprising:
• receiving the sampled data comprising a plurality of first data values, each of the first data values indicating a value for one color in the image;
• for each of a subset of sampled data indicating a region of the image, generating a gamma-adjusted data value for each first data value in the subset using an average of said first data value and at least one other first data value in the subset;
• for each of a subset of gamma-adjusted data values, performing a sub-pixel rendering operation using the subset of gamma-adjusted data values and the subset of first data values to produce an output data value for one of the sub-pixel elements on the display;
• a plurality of output data values collectively forming sub-pixel rendered image data indicating an output image;
• outputting said sub-pixel rendered image data.