In the spirit of Hipstomp's clarion call for clarity, we've got some oldie-but-goodie images of meme-y screen-based optical illusions. A new-ish iPad/iPhone app called the Chameleon Clock jazzes up the time with the so-called 'transparent screen' effect, which is achieved by setting a highly site-specific image as the background image of a display.
Say hello to Chameleon Clock—a big, bold, beautiful clock for iOS. Chameleon Clock blends into your environment by using the camera on the back of your device to either sample the colour of whatever is behind it or, play a live video feed.
Toggle the time display between black & white to match your device with a simple tap and change its transparency with a swipe up or down—anything from jet black and pure white all the way down to barely visible for a more subtle effect.
Tap the mode icon in the bottom left hand corner of the screen to switch between Chameleon Mode where the background colour of the screen is constantly updated to match whatever is behind it, and Live Camera Mode where the background becomes a live video feed.
Cult of Mac notes that this feature might eventually go native: "Apple applied for a patent which described how they could add a 'wild new dynamic screen saver system that could sense the environment it is in and in a chameleon-like fashion automatically change the screen saver.'"
The developers behind Chameleon Clock cited this April 2011 roundup of variations on theme (via Flickr) as the inspiration behind the app.
Hit the jump for a couple more...