研究目的
Investigating the application of infrared steganography and individual screening shapes in the design of postage stamps for security purposes.
研究成果
The research demonstrates the successful application of infrared steganography and individual screening shapes in the design of postage stamps for enhanced security. The CMYKIR method and the new screening element algorithm effectively hide a second image in the infrared spectrum, providing a novel way to secure postage stamps against counterfeiting.
研究不足
The study is limited to the application of the CMYKIR method and the new screening element in the design of postage stamps. The effectiveness of the security features may vary depending on the printing technology and material used.
1：Experimental Design and Method Selection:
The study involves the design of postage stamps with dual images—one visible and one hidden in the infrared spectrum. The methodology includes the use of CMYKIR color separation and the introduction of a new screening element algorithm for dispersing the hidden picture's fringes.
2：Sample Selection and Data Sources:
The research utilizes colorant mixing measurements for offset printing in Eurostandard Coated and U.S. Web coated (SWOP) standards.
3：List of Experimental Equipment and Materials:
The study involves the use of process inks, postage stamp designs, and infrared detecting instruments.
4：Experimental Procedures and Operational Workflow:
The process includes the preparation of two images (visible and infrared), CMYKIR separation, and the application of the new screening element in the design.
5：Data Analysis Methods:
The effectiveness of the hidden image is evaluated through visual inspection and the use of infrared detection instruments.
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