This digital watermark scheme works to color image.
Digital watermarking is a kind of data hiding technique ,recently several researcher use it to protect copyright or ownership.
In digital watermarking research field, watermark always an invisible watermark.
For example:
Clockwise from left: "Origenal_image" and "Watermark"
Of course, our goal is hiding watermark to original image, it can divide into two phases, embedding and extracting.
Embedding is meaning we can use a special scheme (like LSB), let watermark hind to original image, and output one image what processed after embedding, this image, we call that covered image.
For example:
Note:
a best embedding scheme can product Covered image what almost like the original image.
Extracting is meaning we can use the scheme opposite of embedding, it can extract the watermark from cover image.
If you want to know detail about our scheme , you can read our paper and run our source code
have fun~~~~^_^
Parktsai