杨琛,刘国栋,郭凌华,孟卿君,李志健.基于光栅干涉的信息隐藏及多彩色显示研究与印刷实现[J].包装工程,2025,(1):137-144.
YANG Chen,LIU Guodong,GUO Linghua,MENG Qingjun,LI Zhijian.Grating Interference Based Information Hiding & Multicolor Display and Printing Implementation[J].Packaging Engineering,2025,(1):137-144. |
| 基于光栅干涉的信息隐藏及多彩色显示研究与印刷实现 |
| Grating Interference Based Information Hiding & Multicolor Display and Printing Implementation |
| 投稿时间：2024-10-24 |
| DOI：10.19554/j.cnki.1001-3563.2025.01.016 |
| 中文关键词: 莫尔图案 多彩色显示 灰度变换 印刷图像防伪 |
| 英文关键词: moiré pattern multi-color display grayscale transformation image printing anti-counterfeiting |
| 基金项目:国家自然科学基金(22078186) |
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| 中文摘要: |
| 目的 针对现有信息隐藏技术存在隐藏信息内容和色彩显示单调性方面的不足，提出一种基于光栅干涉的信息隐藏和多彩色显示技术。方法 从莫尔条纹干涉的物理现象出发，将彩色隐藏信息加载在特定设计的点状载体光栅图像上，分析并构建了含隐藏信息的载体光栅与解码光栅相互干涉产生的莫尔图案灰度变化函数关系，根据隐藏信息的像素分布规律，对载体光栅不同颜色通道的灰度变换，实现信息的隐藏及多种彩色显示。考虑到隐藏信息的边缘效应，使用多阶调的点状光栅为信息隐藏载体，优化多彩色显示技术的隐藏效果。结果 经过通道灰度变换的隐藏图像与原始载体图像的结构相似度指数SSIM均>0.90，解码显示图像与原始隐藏信息的SSIM值均>0.85，调节解码光栅的相位可实现隐藏信息的多彩色显示。在此基础上，进行了数码印刷实验验证，以实现印刷品信息隐藏和多彩色显示。结论 提出的信息隐藏和多彩色显示技术可通过印刷方式进行隐藏图像的输出，且达到较好的隐藏和显示效果，证明该方法在印刷包装产品运用的可行性。 |
| 英文摘要: |
| The work aims to propose a grating interference based information hiding and multicolor display technology to address the limitations of current information hiding techniques in terms of content and color display. By embedding color information into a point-based carrier grating, the moiré pattern's grayscale variation resulting from the interference between the carrier and decoding gratings was analyzed from the physical phenomenon of moiré fringe interference. Grayscale transformations were applied to the carrier grating's color channels, aligning with the hidden information's pixel distribution, to achieve hiding and multicolor display. To mitigate edge effects, multi-tone point gratings were employed, enhancing the display's hiding effects. Experiments demonstrated high structural similarity indices (SSIM>0.90 for the transformed carrier image and SSIM>0.85 for the decoded image) between the original carrier image and the hidden image of grayscale transformation. Adjusting the decoding grating's phase enabled multicolor display of hidden information. On this basis, experimental verification of digital printing was carried out, realizing printing information hiding and multicolor display. The proposed information hiding and multicolor display technology can achieve output of hidden images by printing with good hiding and display effect, which proves the feasibility of applying the method in printing and packaging products. |
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