Digital image scaling with non integer scaling factors

An image scaling system, comprising:

• an interface operable to receive an image and output a scaled image;
• a processor communicatively coupled to the interface,
• wherein the processor is operable to identify a pixel resolution of the received image, identify an output pixel resolution, and determine a scaling resolution based on the pixel resolution of the received image and the output pixel resolution, wherein the pixel resolution of the received image is a first factor of the scaling resolution, the output pixel resolution is a second factor of the scaling resolution, the first and second factors are different, and a ratio of the output pixel resolution to the pixel resolution of the received image comprises a non integer scaling factor,
• wherein the processor is further operable to convert the received image to the scaling resolution to change a number of pixels of the received image by the first factor of the scaling resolution, generate a grid to scale the converted image, wherein the grid has a number of sections defined according to the second factor times the output pixel resolution, wherein the processor is further operable to section the converted received image according to the grid, wherein each section of the grid includes a fractional number of pixels of the converted received image, and
• wherein the processor is further operable to average color values of the pixels of the converted received image within each section of the grid to compute a single color value for each section of the grid and scale the received image.

A software program stored on one or more computer readable mediums, wherein the software program comprises instructions that, when executed on a processor, are operable to direct the processor to scale an input image, the instructions operable to direct the processor to:

• identify a pixel resolution of the input image;
• identify a pixel resolution of an output device;
• determine a scaling resolution based on the pixel resolution of the input image and the pixel resolution of the output device, wherein the pixel resolution of the input image is a first factor of the scaling resolution, the pixel resolution of the output device is a second factor of the scaling resolution, and the first and second factors are different;
• convert the input image to the scaling resolution to increase a number of pixels of the input image by the first factor of the scaling resolution;
• generate a grid to scale the converted image, wherein the grid has a number of sections defined according to the second factor times the pixel resolution of an output device;
• section the converted input image according to the grid, wherein each section of the grid includes a fractional number of pixels of the converted input image;
• and
• average color values of the pixels of the converted input image within each section of the grid to compute a single color value for each section of the grid and scale the input image.