METHOD AND DEVICE FOR OBTAINING A SECOND IMAGE FROM A FIRST IMAGE WHEN THE DYNAMIC RANGE OF THE LUMINANCE OF SAID FIRST IMAGE IS GREATER THAN THE DYNAMIC RANGE OF THE LUMINANCE OF SAID SECOND IMAGE

摘要

The present principles relates to a method and device for obtaining a second image from a first image when the dynamic range of the luminance of said first image is greater than the dynamic range of the luminance of said second image. The method comprises:- deriving at least one component representative of the colors of said second image from said first image; and- maximizing (step 12) at least one derived component (c2 and/or c3) according to a maximum value (MAX) depending on a linear-light luminance component (L) of the first image.