US Patent No. 10,963,982

VIDEO WATERMARK GENERATION METHOD AND DEVICE, AND TERMINAL


Patent No. 10,963,982
Issue Date March 30, 2021
Title Video Watermark Generation Method And Device, And Terminal
Inventorship Yiqun Hui, Beijing (CN)
Assignee Beijing Dajia Internet Information Technology Co., Ltd., Beijing (CN)

Claim of US Patent No. 10,963,982

1. A video watermark generation method, comprising:determining a spatial-domain watermark and a time-domain value corresponding to each video image frame in a video file, according to a preset spatial-domain watermark template and a preset time-domain watermark template;
determining edge distribution of the each video image frame in the video file; and
generating a watermark for the video file according to the spatial-domain watermark and time-domain value corresponding to the each video image frame and the edge distribution of the each video image frame in the video file, wherein the determining the spatial-domain watermark and the time-domain value corresponding to each video image frame in the video file according to the preset spatial-domain watermark template and the preset time-domain watermark template comprises:
acquiring the preset spatial-domain watermark template;
for each video image frame in the video file, determining resolution of the video image; adjusting resolution of the preset spatial-domain watermark template to be equal to the resolution of the video image, and generating the spatial-domain watermark corresponding to the video image;
acquiring the preset time-domain watermark template; and
for each video image frame in the video file, determining the time-domain value corresponding to the video image based on a transformation rule of a time-domain value in the preset time-domain watermark template.