| 摘要 |
Method and system for image capturing prevention of information displayed on a screen, and computer program thereof The method comprising: presenting a textual information on a screen of at least one user computing device therefore providing a bitmapped textual image; limiting the time in which said bitmapped textual image is presented on said screen; generating at least two background bitmaps of said bitmapped textual image by using a colour for background pixels of said background bitmaps different from colour for text pixels; and displaying said bitmapped textual image on top of one of said at least two background, wherein a percentage of the background pixels of any of said at least two background bitmaps, that are randomly selected, is altered into said colour of text pixels so that obtaining a time-changing combined image cannot be done by a screenshot. The system is configured to implement the method. |
