Method for image processing to generate, from a source image having a predefined width to height ratio, called initial ratio (Runtii), and an information banner having a predefined width to height ratio, called banner ratio (R band), a final image having a width called final width and a height called final height and for which the width to height ratio, called final ratio (R final), is different from said initial ratio (R initial), characterized in that it comprises: - determining, from said final ratio (R final) and said banner ratio (R band), a width to height ratio, called useful ratio (R utile), of an image called useful image so that: ▪ for the useful image and the information banner having a width (L utile, L band) equal to the final width (L final), the height of the useful image (H utile) is equal to the difference between the final height (H final) of the final image and the height of the information banner (H band); or ▪ for the useful image and the information banner having a height (H utile, H band) equal to the final height (H final), the width of the useful image (L utile) is equal to the difference between the final width (L final) and the width of the information banner (L band), - extracting, from the source image, a part of said source image having a width to height ratio equal to the useful ratio (R utile), said extracted image part being determined according to zones of perceptual interest of the source image, identified by a saliency map associating a first value with each pixel of the source image if a corresponding salience value associated with said pixel is lower than a predetermined threshold or otherwise a second value, and - generating, from the extracted part of the source image and the information banner, a final image comprising in juxtaposition: ▪ an image which represents said extracted part of the source image having a width to height ratio equal to the useful ratio (R utile); and ▪ an image which represents said information banner having a width to height ratio equal to the banner ratio (R band); and wherein said extracting comprises: - defining a rectangular bounding box in the source image which bounds all the pixels associated with the second value; - calculating the ratio between the width and the height of said bounding box; - when the ratio of the bounding box is equal to the useful ratio (R utile), extracting the image part contained in the bounding box; - when the ratio of the bounding box differs from the useful ratio (R utile), modifying the height or the width of bounding box so that the ratio of the modified bounding box is equal to, the useful ratio (R utile). - determining, from said final ratio (R final) and said banner ratio (R band), a width to height ratio, called useful ratio (R utile), of an image called useful image so that: ▪ for the useful image and the information banner having a width (L utile, L band) equal to the final width (L final), the height of the useful image (H utile) is equal to the difference between the final height (H final) of the final image and the height of the information banner (H band); or ▪ for the useful image and the information banner having a height (H utile, H band) equal to the final height (H final), the width of the useful image (L utile) is equal to the difference between the final width (L final) and the width of the information banner (L band), ▪ for the useful image and the information banner having a width (L utile, L band) equal to the final width (L final), the height of the useful image (H utile) is equal to the difference between the final height (H final) of the final image and the height of the information banner (H band); or ▪ for the useful image and the information banner having a height (H utile, H band) equal to the final height (H final), the width of the useful image (L utile) is equal to the difference between the final width (L final) and the width of the information banner (L band), - extracting, from the source image, a part of said source image having a width to height ratio equal to the useful ratio (R utile), said extracted image part being determined according to zones of perceptual interest of the source image, identified by a saliency map associating a first value with each pixel of the source image if a corresponding salience value associated with said pixel is lower than a predetermined threshold or otherwise a second value, and - generating, from the extracted part of the source image and the information banner, a final image comprising in juxtaposition: ▪ an image which represents said extracted part of the source image having a width to height ratio equal to the useful ratio (R utile); and ▪ an image which represents said information banner having a width to height ratio equal to the banner ratio (R band); ▪ an image which represents said extracted part of the source image having a width to height ratio equal to the useful ratio (R utile); and ▪ an image which represents said information banner having a width to height ratio equal to the banner ratio (R band); - defining a rectangular bounding box in the source image which bounds all the pixels associated with the second value; - calculating the ratio between the width and the height of said bounding box; - when the ratio of the bounding box is equal to the useful ratio (R utile), extracting the image part contained in the bounding box; - when the ratio of the bounding box differs from the useful ratio (R utile), modifying the height or the width of bounding box so that the ratio of the modified bounding box is equal to, the useful ratio (R utile).