A METHOD AND DEVICE FOR ESTIMATING A COLOR MAPPING BETWEEN TWO DIFFERENT COLOR-GRADED VERSIONS OF A SEQUENCE OF PICTURES

摘要

The present disclosure relates to a method and device for processing a sequence of pictures comprising estimating a color mapping between a first color-graded version of said sequence of pictures whose values are represented in a first color volume and a second color-graded version of said sequence of pictures whose values are represented in a second color volume. The method is characterized in that it comprises: - obtaining (10) a first composite picture by assembling at least two pictures temporarily located at determined time instants in the first color-graded version of the sequence of pictures, and a second composite picture by assembling a same number of pictures temporarily located in the second color-graded version of the sequence of pictures at the same determined time instants; and - estimating (20) said color mapping between said first and second color-graded versions of the picture by estimating a color mapping function that maps the color values of said first composite picture onto the color values of said second composite picture.