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US 2014/0232902 A1Published application
Suppressing Flicker in Digital Images
AssigneeHewlett-Packard Development Company, L.P.
InventorsMinwoong Kim, Jan P. Allebach, Kurt Robert Bengtson
Life of this patent
Estimating the term…
Abstract
Suppressing flicker in digital images includes deriving pixel values from a non-content area of a digital image, estimating flicker values within the non-content area, and suppressing flicker throughout the digital image based on the estimated flicker values of the non-content area.
Claims15
A method of suppressing flicker in digital images, comprising:
- deriving pixel values from a non-content area of a digital image;
- estimating flicker values within said non-content area;
- and
- suppressing flicker throughout said digital image based on said estimated flicker values of said non-content area.
1 more element
A system for suppressing flicker in digital images, comprising:
- a photographing engine to make digital images of objects placed on a platen;
- a pixel value engine to derive pixel values from a non-content area of said digital images;
- an estimating engine to estimate flicker values within said non-content area;
- and
- a suppressing engine to suppress said flicker throughout said digital image based on said estimated flicker values of said non-content area.
2 more elements
A computer program product for suppressing flicker in digital images, comprising:
- a non-transitory computer readable storage medium, said non-transitory computer readable storage medium comprising computer readable program code embodied therewith, said computer readable program code comprising program instructions that, when executed, causes a processor to:
- make a digital image;
- derive pixel values from a non-content area of said digital image;
- determine an average pixel value curve that depicts said pixel values of said non-content area;
- determine coordinates of said average pixel value curve that estimate a product of said flicker values and undistorted pixel values;
- determine an undistorted pixel value curve that depicts said undistorted pixel values of said non-content area;
- and
- estimate flicker values within said non-content area with ratios between said average pixel value curve and said undistorted pixel value curve.
5 more elements
Dependencies are inferred from the claim text.