Apparatus and method for generating a detail-enhanced upscaled image

A method for generating an upscaled image comprising:

• generating a maximum value map, a minimum value map, an average value map and a difference value map, wherein each pixel value in the average value map represents the average of corresponding pixel locations in the maximum and minimum value maps and wherein the difference value map represents a difference between corresponding values in the maximum and minimum value maps;
• upscaling the maximum value map, the minimum value map, the average value map and the difference value map to a destination resolution;
• blending corresponding pixel values from an upscaled image of the source image with at least one of the upscaled maximum value map and the upscaled minimum value map based on a comparison of each pixel value in the upscaled image with an upscaled average value map, and wherein each pixel value in the upscaled difference value map provides a known threshold value for determining when the corresponding pixel location in one of the upscaled maximum value map and the upscaled minimum value map contributes to the corresponding pixel in a detail-enhanced upscaled image.

Non-transitory computer readable media comprising instructions such that when executed by at least one processor, the instructions cause the at least one processor to:

• generate a maximum value map, a minimum value map, an average value map and a difference value map, wherein each pixel value in the average value map represents the average of corresponding pixel locations in the maximum and minimum value maps and wherein the difference value map represents a difference between corresponding values in the maximum and minimum value maps;
• upscale the maximum value map, the minimum value map, the average value map and the difference value map to a destination resolution;
• blend corresponding pixel values from an upscaled image of a source image with at least one of the maximum value map and the upscale maximum value map based on a comparison of each pixel value in the upscaled image with a corresponding pixel value in an upscaled average value map, and wherein each pixel value in the upscaled difference value map provides a known threshold value for determining when the corresponding pixel location in one of the upscaled maximum value map and the upscaled minimum value map contributes to the corresponding pixel in a detail-enhanced upscaled image.