Bullet screen adding device and bullet screen adding method

Abstract

The invention discloses a bullet screen adding device and a bullet screen adding method. The bullet screen adding device comprises a bullet screen rendering module and an image channel module, which are connected together by a digital logic circuit. The bullet screen rendering module is used for receiving the comment content, and is used for rendering the comment content to generate a dot matrix image. In the dot matrix image, the comment content is expressed by the nontransparent pixel, and the parts except the comment content are expressed by the pixels different from the nontransparent pixel. The image channel module is used for receiving the original image from the signal source, and receiving the dot matrix image from the bullet screen rendering module, and is used to replace the pixel of the position corresponding to the original image by the nontransparent pixel in the dot matrix image to generate the image comprising the bullet screen. The above mentioned device and the above mentioned method are directly used for processing and correcting the image signals, and can be used to solve the problem that the original image cannot be covered by the bullet screen provided by the conventional bullet screen adding software on the same display device, and therefore the visibility of the bullet screen can be guaranteed.

Description

technical field

[0001] The invention relates to the field of image processing, in particular to a barrage adding device and method. Background technique

[0002] A "bullet chat" is a scrolling subtitle superimposed on top of an image such as a video frame, and its content is often a video viewer's commentary on the video. At present, many online video sites use the form of "barrage" to post comments, which is very popular among young people. The traditional "bullet screen" is often applied in video-on-demand scenarios, so the mode of collecting comments first and then displaying them can be adopted. In large-scale live events, in order to enliven the atmosphere and arouse the enthusiasm of the audience, it is possible to conduct audience comments in the form of "barrage". Specifically, real-time comments from viewers are collected through some channel, and the collected comments are projected / superimposed on the screen used to play video content in the form of "bullet scre...

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