Redistribution of Paid Channels Freely by Modifying Live Video

In digital television (DTV) broadcasting, service providers charge subscribing fee by scrambling the program with conditional access system as well as control the illegal receiving the charged program. If with any trick or method any local cable operator distributed a number of paid channels illegibly, it will result greatly on revenue of the broadcasters and related parties. In this paper, we describe a simple method for digitally detecting and mapping a number-strip flashing on screen in a video with that of another number-strip. Our work focuses on the illumination aspect of detection and replacement a part of video, that provide to modify a video and that further allows to redistribute of paid channels freely. Index Terms-conditional access system, Ulead visual studio 7.0, opencv, finger print.