Applying watermark to image transmitted via data line, e.g. video film or sequence with soundtrack, by replacing image or sound object of less relevance with watermark

摘要

The method involves allocating a sound signal with limited sound content. Prior to transmission, an image object and/or a limited sound object in the image is selected having a defined priority and less relevance to the information to be transmitted. The object is cut out and replaced by an object containing a watermark.