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Some of you may remember thread about hiding information in an image started by a sadly clueless student. Well, here is something related:
Steganography: Hide Info in Images & More
- Thread starter Borek
- Start date
In summary, some people discussed a thread about hiding information in an image and someone shared a related interesting histogram. Others were amazed by the trick and tried to figure out what was hidden. The discussion included some links to articles explaining the concept further.
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Basically it has an interesting histogram.
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minger
Science Advisor
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I GOT IT! Haha, that's pretty neat.
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Jonathan Scott
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Wow - that's an amazing trick!
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zomgwtf
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I don't understand what is hidden... the NYC skyline? If so it's not hidden in the image very well it was the first thing I noticed which is why I kept staring thinking I'd notice somtehing else haha... but nope. Maybe someone can give a hint or something idk
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david90
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I see how it can be a histogram but there aren't any numbers associated with it. How do you make sense of a graph without #?
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turbo
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Nice histogram!
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cronxeh
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Its all in the histogram
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CompuChip
Science Advisor
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Spoiler warning
http://www.ironicsans.com/2007/09/idea_the_histogram_as_the_imag.html
http://www.ironicsans.com/2007/10/reader_takes_histogram_idea_ev.html
http://www.joshmillard.com/2007/10/04/retro-histo-making-an-image-fit-your-histogram/
http://www.ironicsans.com/2007/09/idea_the_histogram_as_the_imag.html
http://www.ironicsans.com/2007/10/reader_takes_histogram_idea_ev.html
http://www.joshmillard.com/2007/10/04/retro-histo-making-an-image-fit-your-histogram/
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matthyaouw
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Hahaha, nice.
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CompuChip said:
Yep, I was going going to post these links
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FAQ: Steganography: Hide Info in Images & More
What is steganography?
Steganography refers to the practice of concealing information within an image, audio file, or other form of data in order to hide its existence.
How does steganography work?
Steganography works by altering the pixels or data of an image or file in a way that is not easily detectable by the human eye or by software. This allows for secret messages or data to be embedded within the image or file.
What are the applications of steganography?
Steganography has various applications, including covert communication, data protection, and digital watermarking. It can also be used for security purposes, such as hiding sensitive information in images to prevent it from being intercepted.
How is steganography different from cryptography?
Steganography and cryptography are both methods of hiding information, but they differ in their approaches. While cryptography uses encryption to scramble the data, steganography hides the data in plain sight. Steganography is also more difficult to detect, as it does not rely on a key or algorithm.
What are some common techniques used in steganography?
Some common techniques used in steganography include manipulating the least significant bit of each pixel in an image, using invisible ink or microdots, and hiding data in the whitespace of a document. Other techniques involve hiding data in audio files, videos, or even text files.