Patent ID: 7679620
Filing Date: 2010-03-16
Classification: G06T

Abstract:
1. A computer-implemented method for generating high-resolution bitmaps from low-resolution bitmaps, comprising using a computer to perform the process actions of: magnifying an image to form a magnified image; processing the non-magnified image using all of exact source image pixels, bilinearly blended source image pixels and linearly blended source image pixels of the non-magnified image to obtain a high-resolution, magnified minimum or maximum spatially continuous luminance only function of a local image neighborhood; wherein the process action of processing the non-magnified image to obtain a high resolution, magnified minimum or maximum spatially continuous luminance only function of the local image neighborhood comprises: performing contrast enhancement on each image pixel of each local image neighborhood of the magnified image based on the local minimum or maximum spatially continuous luminance only function; and producing a high-resolution image from the contrast-enhanced pixels.