Watermarking problem - color to gray

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Dani D
Dani D le 5 Juin 2016
Commenté : Walter Roberson le 10 Juin 2016
Hello, How can watermark a color image inside a gray scale image? Thanks

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Walter Roberson
Walter Roberson le 5 Juin 2016
Convert the grayscale image to its RGB equivalent, and then you can put a color watermark inside of it.
  2 commentaires
Dani D
Dani D le 10 Juin 2016
Thank you,but i think after your solution,grayscale image will be colorful.
Walter Roberson
Walter Roberson le 10 Juin 2016
Yes, that is what you asked to have happen. When you watermark one image inside another, the purpose is to have the watermarking image show through (barely).
If you are trying to hide a color image inside a grayscale image, then you need steganography, not watermarking.

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