The Winky app for Google Glass can take photos with the blink of an eye.

Winking can be creepy. Wearing a camera on your face is kind of creepy. Winking while wearing a camera on your face just might bring creepy to a whole new level via an app for Google Glass.

While it may not be available to the public for a while, Google Glass is currently being use by a hand-selected group of "Glass Explorers." Developer Mike DiGiovanni was one of the lucky few who received a beta version of the device.

By rearranging the priority of the wink gesture control, DiGiovanni was able to create an app that will take photos when the user winks — no voice command necessary. Called Winky, the app was created with the intent of lifelogging, but it's easy to imagine a situation when an app that so subtly sneaks a capture could make Google Glass seem even more potentially invasive. 

From DiGiovanni's Google Plus page:

I just released Winky, a way to take pictures with a wink on Google glass. This was a fun project that involved a bit of decompiling of Glass Home to see what was going on. I discovered a few other interesting tidbits that I'll be looking into as I get time.

Winking really changes things. You might not think it's hard to say "Ok, Glass Take a Picture" or even just tap a button. But it's a context switch that takes you out of the moment, even if just for a second. Winking lets you lifelog with little to no effort. I've taken more pictures today than I have the past 5 days thanks to this. Sure, they are mostly silly, but my timeline has now truly become a timeline of where I've been.

The big technical hurdle turned out to simply be that at least one spot on Glass does some checking against the build type and disables the wink gesture completely if it's a user build and it ever detects a wink. I was able to get around this by intercepting the wink with a higher priority than anything else.

To provide a little more clarity, this is being released as pure Android source code. It's intended to be compiled and run as an APK. At this point, I'm figuring most of you guys with Glass know how to do this. I'm trying to stay away from providing just APKs since there may be personal information that is less protected than on your average Android device and I don't want there to be any questions about whether I'm touching your data. This is different from the typical Glassware that the NY Times or Path provide.