Patent ID: 9478004
Filing Date: 2016-10-25
CPC Classification: G06T,H04N

Claim Text:
1. A computer program product, for use in a method of manipulating the spatial frequencies of an image, said computer program product comprising a non-transitory computer-readable storage medium storing instructions that, when executed on a processor, cause the processor to manipulate the image according to said method, said method comprising: inputting the image; converting the image into a single-channel grayscale image; separating the grayscale image into a first component image comprising high spatial frequencies, and a second component image comprising low spatial frequencies; filtering said first component image for filtering out frequencies above an upper high-spatial-frequency threshold, and for filtering out frequencies below a lower high-spatial-frequency threshold; blurring said filtered first component image at each of said upper high-spatial-frequency threshold and said lower high-spatial-frequency threshold; filtering said second component image for filtering out frequencies above an upper low-spatial-frequency threshold, and for filtering out frequencies below a lower low-spatial-frequency threshold; and producing a composite image by subtracting the filtered and blurred first component image from the filtered second component image.