Video watermark detection method and device, electronic equipment and storage medium
A video watermarking and watermarking technology, applied in image data processing, complex mathematical operations, instruments, etc., can solve problems such as watermark detection, and achieve the effect of low error rate and missed detection rate
Active Publication Date: 2020-07-24
WUBA
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[0005]
This application provides a video watermark detection method, device, electronic equipment and storage medium to solve the watermark detection problem when the watermark movement speed is unknown
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[0057] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0058] In the field of digital watermarking, using the watermark embedding algorithm to embed the watermark image into the video file can prevent the video from being tampered with, mark the source of the video, and prevent others from stealing the video, so as to protect the copyright of the video and the interests of the copyright owner....
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The invention discloses a video watermark detection method and device, electronic equipment and a storage medium. The method comprises the steps of firstly obtaining a preset number of binary video frame images from a video file; performing convolution operation on the binarized video frame image by using the binarized watermark image to obtain a target sub-block corresponding to the maximum convolution result in the binarized video frame image; judging whether the binarized video frame image contains the watermark or not by comparing the binarized pixel values at the corresponding positions of the watermark image and the target sub-block; and finally, determining whether the video file contains the watermark or not according to a judgment result corresponding to part or all of the binarized video frame images. According to the method provided by the invention, the video watermark can be detected under the condition that the watermark moves at a high speed, and the error rate and the omission ratio are extremely low.
Description
technical field [0001] The present application relates to the technical field of watermark detection, and in particular to a video watermark detection method, device, electronic equipment and storage medium. Background technique [0002] Embedding a watermark in the video can prevent the video from being tampered with, mark the source of the video, and prevent others from stealing the video, so as to protect the copyright of the video and the interests of the copyright owner. For example, in the field of real estate rental and sales information services, the copyright owner connects the watermark detection service and watermark embedding service to the housing information platform. When the housing information platform receives the housing video uploaded by users (such as real estate agents), copyright Party uses the watermark detection service to detect whether there is a watermark in the source video. If the watermark is detected, it will determine that the video is a pira...
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IPC IPC(8): G06T1/00G06T7/136G06T7/13G06T7/00G06F17/15
CPCG06T1/0021G06T7/136G06T7/13G06T7/0002G06F17/15G06T2201/0065G06T2207/10016
Inventor 不公告发明人
Owner WUBA