| 摘要 |
There is disclosed a method of forming a securitized image comprising: obtaining a host image which is to be visible to an observer, obtaining a latent image to be concealed within the host image, adjusting the saturation of regions of at least one of the host image and the latent image such that when the latent image and the host image as adjusted are subsequently combined, the saturation of the combined regions will more closely approximate the saturation of corresponding regions of the original host image; and combining the latent image, and host image as adjusted to form a securitized image. |
