Range aware spatial upscaling

An apparatus for graphics processing, comprising:

• a processor;
• memory coupled with the processor;
• and
• instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
• receive a first image including a plurality of first pixels at a first resolution;
• upscale the first image to a second image at a second resolution higher than the first resolution, the second image including a plurality of second pixels including an interpolated pixel from the plurality of first pixels, the interpolated pixel having an intensity value derived from a plurality of neighboring pixels to the interpolated pixel in the plurality of first pixels, the intensity value being based at least in part on, for a respective pixel of the neighboring pixels, an intensity difference between an intensity value of the respective pixel and an average intensity value of a subset of the neighboring pixels surrounding the interpolated pixel, and a spatial difference between the respective pixel and the interpolated pixel;
• and
• render the second image at the second resolution.

An apparatus for graphics processing, comprising:

• means for receiving a first image including a plurality of first pixels at a first resolution;
• means for upscaling the first image to a second image at a second resolution higher than the first resolution, the second image including a plurality of second pixels including an interpolated pixel from the plurality of first pixels, the interpolated pixel having an intensity value derived from a plurality of neighboring pixels to the interpolated pixel in the plurality of first pixels, the intensity value being based at least in part on, for a respective pixel of the neighboring pixels, an intensity difference between an intensity value of the respective pixel and an average intensity value of a subset of the neighboring pixels surrounding the interpolated pixel, and a spatial difference between the respective pixel and the interpolated pixel;
• and
• means for rendering the second image at the second resolution.

A non-transitory, computer-readable medium storing computer executable code, the code when executed by a processor cause the processor to:

• receive a first image including a plurality of first pixels at a first resolution;
• upscale the first image to a second image at a second resolution higher than the first resolution, the second image including a plurality of second pixels including an interpolated pixel from the plurality of first pixels, the interpolated pixel having an intensity value derived from a plurality of neighboring pixels to the interpolated pixel in the plurality of first pixels, the intensity value being based at least in part on, for a respective pixel of the neighboring pixels, an intensity difference between an intensity value of the respective pixel and an average intensity value of a subset of the neighboring pixels surrounding the interpolated pixel, and a spatial difference between the respective pixel and the interpolated pixel;
• and
• render the second image at the second resolution.