摘要
分析了数字全息水印技术和数字图像半色调技术中的调幅半色调、调频半色调和AM/FM混合半色调3类主要技术的优势。探讨了将数字全息水印和数字图像半色调化技术紧密结合起来的数字全息水印防伪技术,并介绍了其原理、特点及应用。
Abstract： The advantages of digital holographic watermark technology and three main techniques of AM screening, FM screening and hybrid AM/FM screening in digital image halftoning are analyzed. The digital hologram watermarking and digital image halftoning technique combined with digital holographic watermark security technology are discussed while the principle, characteristics and applications are introduced as well.
出处
《包装学报》
2013年第1期26-30,共5页
Packaging Journal
基金
国家自然科学基金资助项目(61170101)
关键词
数字全息水印
数字半色调
印刷防伪
digital holographic watermark
digital halftoning
printing security
