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The same image viewed by white, blue, green, and red lights reveals different hidden numbers. Steganography (/ ˌ s t ɛ ɡ ə ˈ n ɒ ɡ r ə f i / ⓘ STEG-ə-NOG-rə-fee) is the practice of representing information within another message or physical object, in such a manner that the presence of the concealed information would not be evident to an unsuspecting person's examination.
Image of a tree with a steganographically hidden image. The hidden image is revealed by removing all but the two least significant bits of each color component and a subsequent normalization. The hidden image is shown below. Image of a cat extracted from the tree image above. Concealing messages within the lowest bits of noisy images or sound ...
Hidden messages include backwards audio messages, hidden visual messages and symbolic or cryptic codes such as a crossword or cipher. Although there are many legitimate examples of hidden messages created with techniques such as backmasking and steganography , many so-called hidden messages are merely fanciful imaginings or apophany .
We come in contact with it all the time, but the markings on the one-dollar bill remain shrouded in mystery. Until now. 1. The Creature. In the upper-right corner of the bill, above the left of ...
The secret room in Adventure with Warren Robinett's credit. Adventure is typically regarded as one of the first video games to feature an Easter egg.. An Easter egg is a message, image, or feature hidden in software, a video game, a film, or another—usually electronic—medium.
Former MI6 agent Richard Tomlinson stated that Pentel Rolling Writer rollerball pens were extensively used by MI-6 agents to produce secret writing in the form of invisible messages while on missions. [16] In 2002, a gang was indicted for spreading a riot between federal penitentiaries using coded telephone messages, and messages in invisible ...
Twitter user Ronnie Joyce came across the poem above on the wall of a bar in London, England. While at first the text seems dreary and depressing, the poem actually has a really beautiful message.
It’s her prerogative! Contrary to some #FreeBritney activists’ theories, Britney Spears is in control of her own Instagram posts, according to her social media manager, Cassie Petrey. Stars ...