how to hide a binary image within grayscale image using lsb ...pls help me by matlab code
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sridip sahoo
on 26 Oct 2015
Answered: Image Analyst
on 27 Oct 2015
i create a saliency map of a grayscale image.after that i classify that image i.e. image's black color portion value is '0',gray color portion value is '100' and white color portion value is '255'.now i want to hide a binary image by changing the bit position of the classified image's. i.e. changing last two bit of the black color portion and only changing the last bit of the gray color portion and white remain fixed by comparing with the binary image.
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Walter Roberson
on 26 Oct 2015
Is the strategy "insert data in the black portions first, and if there are still more bits that need added, put them in the gray part" ?
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Image Analyst
on 27 Oct 2015
For what it's worth, attached is my LSB watermarking demo. Feel free to adapt it if it doesn't do exactly what you want.
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