公开(公告)号：US06707927B1

公开(公告)日：2004-03-16

申请号：US09542295

申请日：2000-04-04

申请人： Kazumasa Kita ,  Hiroshi Yoshiura ,  Yutaka Kurosu ,  Miki Tanaka ,  Shinobu Eikawa ,  Tomoyuki Kaji

发明人： Kazumasa Kita ,  Hiroshi Yoshiura ,  Yutaka Kurosu ,  Miki Tanaka ,  Shinobu Eikawa ,  Tomoyuki Kaji

IPC分类号： G06K900

CPC分类号： G06T1/0028 ,  G06T2201/0051

摘要： There is provided a steganographic system which can dispense with an original image during extraction of watermark by determining a position at which an optimum space dependent physical quantity is embedded as a watermark complying with an image such that the picture quality can be prevented from being deteriorated, embedding watermark information in the image, generating information such as watermark embedding position information and receiving a watermark embedded image and watermark embedded position information to extract watermark information.

摘要翻译： 提供了一种隐写系统，其可以通过确定嵌入最优空间相关物理量的位置作为符合图像的水印，从而可以防止图像质量恶化，从而在提取水印期间省去原始图像， 在图像中嵌入水印信息，生成诸如水印嵌入位置信息的信息，并接收水印嵌入图像和水印嵌入位置信息以提取水印信息。