Dynamic Watermark Display for Screen Capture Security
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Solution Overview
Problem
Existing digital watermarking technologies face challenges in effectively displaying watermarks on screens without distortion, especially when the size or position of digital content changes, and they lack policies to control when and how watermarks are displayed based on user actions and content types.
Innovation Solution
A watermark display apparatus and method that includes a monitoring unit, a watermark display determining unit, and a watermark display unit, connected via a communication network, which applies screen watermark display policies to determine when and how to display watermarks on specific operating systems, applications, and documents, maintaining their size and position even when the content is resized or repositioned.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a digital watermark is inserted into digital content, then copyright protection is improved, but the watermark is destroyed when the content size or display area changes
Solution Approach 1:
The patent implements dynamic watermarking by monitoring the display area of digital content in real-time and automatically adjusting watermark parameters (such as size, position, and opacity) based on current display conditions. This allows the watermark to maintain its protective function while adapting to resizing operations, thereby resolving the contradiction between copyright protection reliability and watermark integrity during content transformation.
2Illumination intensity
If screen capture or imaging is used to display content, then content visibility is improved, but content leakage occurs without watermark protection
Solution Approach 1:
The patent applies watermarking to the display output before the content can be captured or imaged. By preemptively embedding the watermark in the visual output that reaches the screen, the system ensures that any subsequent capture or imaging operation automatically includes the watermark, thus preventing content leakage while maintaining visibility. This preliminary action approach resolves the contradiction between content visibility and prevention of unauthorized copying.
3Adaptability or versatility
If watermark display policies are not implemented, then display flexibility is improved, but unauthorized copying cannot be prevented
Solution Approach 1:
The patent implements watermark display policies that dynamically adjust watermark parameters (visibility, position, size) based on content type, user actions, and display context. This policy-based approach allows the system to maintain display flexibility for different scenarios while ensuring copyright protection is applied appropriately. The parameter changes are controlled by policies that evaluate content characteristics and user behavior, resolving the contradiction between display adaptability and copyright protection reliability.
Data Source
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AI summary
There is provided a method and apparatus for displaying a watermark on a screen. According to the present invention, when an application is executed or a document is opened by a user's manipulation, it is determined whether a watermark is displayed based on a message generated from an operating system and screen watermark display policies, and when it is determined that the watermark is displayed, the watermark is displayed on a screen. According to the present invention, when the watermark is displayed on a screen, it is possible to provide a user with notification that corresponding content is important content or confidential content. Even when the screen is captured or is imaged using a camera, the watermark is displayed in the captured image or the imaged video. Therefore, it is possible to identify that the corresponding content is important content or confidential content. As a result, it is possible to increase user awareness of security.