Patent ID: 8165337
Filing Date: 2012-04-24
Classification: H04N

Abstract:
1. A method for detecting a fade in a sequence of images, said images comprising pixels or image points with each of which is associated at least one luminance value, said method comprising the following steps: calculating, for each of the images of a window N consecutive images in length, termed detection window, and for the image preceding said detection window, a luminance level on the basis of the luminance values associated with each of said pixels of each of said images; calculating, for each of said N images of said detection window, a difference of luminance level between the luminance level of the current image and the luminance level of the image preceding said current image; and deducing therefrom the presence of a fade for said detection window if, for at least k images of said detection window, said difference of luminance level is greater than a predefined threshold, with 2≦k≦N.