Image Processing Apparatus for Adaptive Information Embedding
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Solution Overview
Problem
Existing techniques for embedding information into printed documents using methods other than inkjet, such as electrophotographic methods, face challenges in balancing the accuracy of information extraction with the inconspicuous image quality, as they often require similar processing intensity to inkjet methods, leading to difficulties in achieving optimal results.
Innovation Solution
An image processing apparatus that determines embedding conditions based on the type of printing apparatus used, generating a multiplexed image by embedding specific information into image data, and controlling the printing process to ensure accurate and invisible information embedding across different printing methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the same embedding processing intensity is applied to non-inkjet printing methods as to inkjet methods, then the information extraction accuracy can be maintained, but the image quality becomes conspicuous and degraded
Solution Approach 1:
The patent applies different embedding processing intensities to different printing methods. Specifically, inkjet printing uses a first embedding processing intensity while other printing methods (electrophotographic, thermal, dye-sublimation) use a second embedding processing intensity that is lower than the first. This local differentiation of processing parameters resolves the contradiction by tailoring the embedding strength to the specific printing method's characteristics, maintaining extraction accuracy while preventing image quality degradation.
Solution Approach 2:
The patent changes the embedding processing intensity parameter based on the printing method type. The system identifies the printing method and selectively applies different intensity levels: higher intensity for inkjet printing and lower intensity for other printing methods. This parameter adaptation resolves the technical contradiction by optimizing the embedding strength to match the capabilities and limitations of each printing technology.
2Object-affected harmful factors
If the embedding processing intensity is reduced for non-inkjet printing methods, then the image quality remains inconspicuous, but the information extraction accuracy decreases
Solution Approach 1:
The patent implements local quality by applying different embedding processing intensities to different printing methods. Non-inkjet printing methods receive a second embedding processing intensity (lower than the first), which is optimized for their specific characteristics. This resolves the contradiction by ensuring that each printing method receives the appropriate processing intensity to maintain both image quality and extraction accuracy.
Solution Approach 2:
The system dynamically adjusts the embedding processing intensity based on the detected printing method. The image processing apparatus identifies whether the printing method is inkjet or another type, and then selectively applies the appropriate intensity level. This dynamic adaptation resolves the contradiction by making the processing intensity flexible and responsive to the specific printing technology being used.
3Device complexity
If a unified embedding method is used across all printing methods, then the system complexity is reduced, but the extraction accuracy and image quality balance cannot be achieved for different printing technologies
Solution Approach 1:
The patent applies local quality by implementing different embedding processing intensities for different printing methods. The system includes a printing method identification unit that detects the printing method type and an embedding processing unit that selectively applies the appropriate intensity. This resolves the contradiction by achieving high reliability through method-specific optimization while managing complexity through automated identification and selective processing.
Solution Approach 2:
The patent achieves universality by creating a multi-functional embedding system that can handle multiple printing methods (inkjet, electrophotographic, thermal, dye-sublimation) with a single integrated apparatus. The system universally supports various printing technologies while adapting the embedding parameters to each method's specific requirements, thus maintaining both reliability and manageable complexity.
Data Source
AI summary
Provided is an image processing apparatus for generating a printed document with specific information embedded therein, including: a first obtaining unit configured to obtain image data to be used in printing; a second obtaining unit configured to obtain the specific information; an acceptance unit configured to accept designation of a printing apparatus for executing printing; an embedding condition determination unit configured to determine a condition for embedding the specific information into the image data according to a type of the accepted printing apparatus; a multiplexed image generation unit configured to generate a multiplexed image by executing embedding of the specific information under the condition determined by the embedding condition determination unit; and a control unit configured to perform control such that the printing apparatus prints the multiplexed image.