This is cool: hide an image so that it only appears when text is highlighted.

Steganography, image analysis research

The program gifshuffle is used to conceal messages in GIF images by shuffling the colourmap, which leaves the image visibly unchanged. gifshuffle works with all GIF images, including those with transparency and animation, and in addition provides compression and encryption of the concealed message.

A javascript and HTML based steganography encoder/decoder.

"When Carmen broke up with her boyfriend, she “wasn’t in the happiest state.” The breakup happened while she was on a school trip and her mother was already nervous. Initially, Carmen was going to mark the breakup with lyrics from a song that she had been listening to, but then she realized that the lyrics were quite depressing and worried that if her mom read them, she’d “have a heart attack and think that something is wrong.” She decided not to post the lyrics. Instead, she posted lyrics from Monty Python’s “Always Look on the Bright Side of Life.” This strategy was effective. Her mother wrote her a note saying that she seemed happy which made her laugh. But her closest friends knew that this song appears in the movie when the characters are about to be killed. They reached out to her immediately to see how she was really feeling."

informatica economica

Josh Millard creates working software to create the "Histogram as Image" idea from the Ironic Sans post