Dynamic Watermark Visibility for Document Security
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing document printing security measures, such as watermarks, are ineffective when the document content obscures the watermark, leading to potential unauthorized copying or counterfeiting, especially in cases where the watermark cannot be visibly printed in white spaces.
Innovation Solution
A system that dynamically modifies a non-invasive watermark to an invasive watermark by analyzing the document content and modifying its color or placement to ensure visibility, either by printing it in white spaces or overlaying it on document content, depending on available space and thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a non-invasive watermark is used to maintain document readability, then the watermark visibility is improved in white space areas, but the watermark becomes obscured when document content covers it
Solution Approach 1:
The watermark placement strategy dynamically adapts based on document content analysis. The system evaluates white space availability and automatically switches between non-invasive placement (in white spaces) and invasive placement (overlaying content) to ensure watermark visibility and security effectiveness.
Solution Approach 2:
Different portions of the watermark are placed in different locations based on local document characteristics. The system identifies white space regions and places watermark portions there when possible, while converting to invasive placement in regions where content obscures the watermark.
2Ease of operation
If a watermark is placed in white space to avoid obscuring document content, then the document readability is improved, but the watermark may not be visible when white space is insufficient
Solution Approach 1:
The system dynamically adjusts watermark placement strategy based on the amount of white space available in the document. When white space is sufficient, non-invasive placement is used to maintain readability. When white space is insufficient, the system switches to invasive placement to ensure watermark visibility.
Solution Approach 2:
The system changes the placement parameter of the watermark from non-invasive (in white space) to invasive (overlaying content) based on the threshold of white space availability. This parameter change ensures that the watermark remains visible while minimizing impact on document readability.
3Reliability
If an invasive watermark is used to ensure visibility over document content, then the watermark visibility is improved, but the document readability deteriorates due to obscuring content
Solution Approach 1:
The watermark is applied with local quality differentiation: non-invasive placement in white space areas to preserve readability, and invasive placement only in necessary areas where content obscures the watermark. This selective approach minimizes the impact on document readability while maintaining security effectiveness.
Solution Approach 2:
The system applies invasive watermarking only partially, specifically in regions where non-invasive placement is not feasible. The majority of the watermark is placed in white spaces using non-invasive methods, with invasive placement used only to the extent necessary to ensure watermark visibility.
Data Source
AI summary
A system creates a copy of a document by: receiving an electronic representation a document to be copied onto a substrate; identifying a non-invasive watermark to be printed on the substrate; analyzing the document and the non-invasive watermark to determine whether a threshold amount of the non-invasive watermark can be printed in a white space of the document; and creating a secure copy of the document with the watermark. If the threshold amount of the non-invasive watermark can be printed in the white space, the system will print at least a portion the non-invasive watermark in the white space. Otherwise, the system will modify at least a portion of the non-invasive watermark to comprise an invasive watermark portion, and it will print the invasive watermark portion over a portion of the document's content.