Hiding image inside an image (steganography)

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Currently I am doing a code in C# to embed a text file within an bitmap image. This is working fine, but in case of embedding image inside an image it's not working. Can anyone help me out on this?

Thanks in advance.

Posted 5-Jan-11 6:44am

shadow678

Updated 5-Jan-11 8:26am

Toli Cuturicu

v2

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fjdiewornncalwe 5-Jan-11 12:49pm

Some source snippets on what you are doing, and where it is going wrong would help us help you much better. Right now, the question is just a little too theoretical to get a great answer.

[no name] 5-Jan-11 12:50pm

Can you explain what you mean by embedding image inside and image?

Manfred Rudolf Bihy 5-Jan-11 12:55pm

My thoughts were going in the direction of steganography.
And instead of hiding text he wants to hide another image.

Manfred Rudolf Bihy 5-Jan-11 15:23pm

What isn't working Shadow? Give us some details!

3 solutions

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Not Active · Answer 1 · 2011-01-05T06:51:00

Solution 2

Something like this[^]?

Posted 5-Jan-11 6:51am

Not Active

Comments

Manfred Rudolf Bihy 5-Jan-11 12:54pm

My thoughts were going more in the direction of steganography.

Sergey Alexandrovich Kryukov 5-Jan-11 14:55pm

Yes, Mark, the collage art you reference here it not related to steganography...

Manfred Rudolf Bihy 6-Jan-11 8:22am

Maybe not related, but very neat stuff nevertheless! 5+

Manfred Rudolf Bihy · Answer 2 · 2011-01-05T06:48:00

It works by the same principles as the hiding of text, except that you can't hide one picture in another if it is greater than approximately 1/8 of the file it will be hidden in, since we can only hide information in the least significant bit of the visual data (you might want to try 2 bits and see how it goes). One would have to subtract a little bit from that factor since there is also image metadata that cannot be used to hide something in it.

Where exactly are you experiencing your problems?

Regards,
Manfred

Espen Harlinn · Answer 3 · 2011-01-05T07:19:00

Solution 3

Depending on the imageformat in question you can always play around with the palette, hiding a monochrome image shouldn't be too hard.

You can use this link[^] as a starting point to retrieve information on various well known ideas and methods.

Good luck
Espen Harlinn

Posted 5-Jan-11 7:19am

Espen Harlinn