发明名称 |
MULTIPLE SHADE LATENT IMAGES |
摘要 |
Various examples are provided for creating encoded security images that are formed by embedding a multi-shade hidden or latent image into a visible image. The multi-shade latent image may include image content having a wide range of tonal values. An article of manufacture is provided having a surface with image elements thereon, the image elements include characteristics that correspond to a relative color or a relative shade of a source image for a polychromic or multiple shade latent image. The latent image is visible when the surface is viewed at glancing angles. |
申请公布号 |
HK1218279(A1) |
申请公布日期 |
2017.02.10 |
申请号 |
HK20160106241 |
申请日期 |
2016.06.02 |
申请人 |
Graphic Security Systems Corporation |
发明人 |
QUINN, Cary M.;CVETKOVIC, Slobodan |
分类号 |
B41M;B42D;G06K |
主分类号 |
B41M |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|