Method and device for estimating color mapping between two different color graded versions of a sequence of pictures

摘要

The present disclosure provides a method and device for processing a sequence of pictures comprising a first color graded version of a sequence of pictures having values represented in a first color volume and a second color graded version of the sequence of pictures And estimating a color mapping between the first color graded version of the sequence of pictures and the second color graded version of the sequence of pictures having the represented value. The method further comprises the step of determining whether the content of the first composite picture has at least part of the respective content of at least two pictures temporarily located at the time determined in the first color graded version, Acquiring the first composite picture by assembling the at least two pictures of the color graded version and the contents of the second composite picture are temporarily stored in the second color graded version at the same time Acquiring a second composite picture by assembling the at least two pictures of the second color graded version so as to have at least part of the respective content of the at least two pictures located (10), by estimating a color mapping function that maps the color value of the first composite picture to the color value of the second composite picture, the difference between the first and second color graded versions And estimating color mapping (20).