Suppressing flicker in digital images

摘要

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.

主权项

1. 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 wherein:
estimating said flicker values within said non-content area includes analyzing each color channel of said pixel values individually,estimating said flicker values within said non-content area includes determining average pixel value curves that map said pixel values averaged along a direction perpendicular to said flicker within said non-content area for each of said color channels,estimating said flicker values within said non-content area includes identifying local maximums and local minimums of said average pixel value curve,estimating said flicker values within said non-content area includes interpolating an undistorted pixel values curve formed with connecting midpoints between said local maximums and local minimums.