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New Optical Security Doesn't Require Embedment
An anonymous reader writes "Scientists are claiming to have a new type of optical security that doesn't require embedment. Optical security includes many different options but up until now they have all required that the secret image be embedded in a host image which left it vulnerable. From the article: 'To address this problem of finding the secret image in the watermark, scientists have developed a new optical security method that doesn't require embedment. Instead, the technique uses a phase retrieval algorithm to generate specific optical and phase keys that extract the secret information when applied. The optical keys contain information and are distributed to an individual through a personal identification number (PIN). The information contained in the phase keys (the main source for determining extraction) is distributed to the individual separately.'"
The cock, that is the trumpet to the morn,
Doth with his lofty and shrill-sounding throat
Awake the god of day; and, at his warning,
Whether in sea or fire, in earth or air,
The extravagant and erring spirit hies
To his confine.
Now for the educational segment of our programme:
In TV and print ads, Kool-Aid Man was known for bursting suddenly through walls, seemingly summoned by the making and imbibing of Kool-Aid by kids and other times answering the needs of kids who would call for him. He would often be carrying his own pitcher of Kool-Aid as he made his way through the now broken wall. His catch phrase is "Oh, yeaaaaah!".
He is still around to this day doing television advertisements, but he no longer bursts through walls in newer commercials like he used to. More often he will appear already in a situation rather then suddenly showing up in the destructive way that made him famous. He has been modernized, sometimes wearing clothing, or talking with kids in their own lingo as he relaxes enjoying Kool-Aid with kids on a nice warm day. The voice of Kool-Aid Man in the commercials for the past decade or so is Frank Simms, who used to sing back up for the pop singer Billy