Patent Document ID: 9881408
Application ID: 15223571
Patent Status: 1

Claim One:
1. A processor-implemented method of processing a digital image to correct artifacts, the processor-implemented method comprising: (a) receiving, at a processor from a buffer, a digital image comprising one or more artifact regions; (b) receiving, at the processor, a first selection of a first encompassment measure that encompasses a largest artifact region of the one or more artifact regions; (c) blurring, by the processor, a copy of the digital image using the first encompassment measure to generate a first blurred image that is stored in the buffer; (d) calculating, by the processor, i. a first difference of Gaussians of, the digital image from the first blurred image ii. a second difference of Gaussians of the first blurred image from the digital image; (e) compositing, by the processor, using the equation C=α*A+(I−α)*B, where α is the first difference of Gaussians, A is the digital image, B is a scaled version of the digital image, and result, C, is a first composited image; (f) compositing, by the processor, using the equation E=β*C+(I−β)*D, where β is the second difference of Gaussians, D is a scaled version of C and is oppositely scaled than the scaling used for B, and result, E, is a second composited image; and (g) modifying, by the processor, the digital image, when it is determined that there are one or more pixels of invariable values in a difference image that is generated by a difference of the digital image from the second composited image, wherein the modifying comprises: scaling one or more values of pixels in each of the one or more artifact regions to within a predefined factor of the invariable values, thereby generating a modified digital image, and wherein a correction to the artifacts in the digital image is provided in the modified digital image.