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Hi i'm looking for hiding a message in a bitmap file. I'm using the less useful bit of a pixel (in the channel blue,red and green) to encrypt character. A character needs 8 pixel to be encrypt. But i don't know how to change only the last bit of a pixel.
3 Replies - 2195 Views - Last Post: 03 April 2005 - 08:54 AM
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#2
Amadeus
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Re: Bitmap
Posted 03 April 2005 - 06:57 AM
Do you have any code to post as to how you're reading the information in your program? If we see how you're reading it, it may help to come up with a solution on how to change it. C and C++ (and C#) do allow for bit level operations, but there are several ways to accomplish it.
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Gignac
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Re: Bitmap
Posted 03 April 2005 - 08:52 AM
Here is a fonction of my main who read and show some detail of a bitmap. But i don't how to hide a message in bmp file? I think that if i put the bmp file in a table of [512pixel]^[512pixel] i will be able to manage the pixel of the bmp file.
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Read_Bmp.cpp (3.29K)
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