Perpetual Thursday (PT) is a log of Patrick J. Simmons' thoughts, ideas, opinions, commentary, doings, and so so forth. In short, rambling, ranting, nonsense, and bunk.
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This is pretty nifty: stare at the black dot in the center of the image below for 20-30 seconds, then, without moving your eyes off the black dot, move your mouse over the image. You should now see a normal looking -full-colour photograph. If you move your eyes, the photo will turn grayscale. Try it.
Neat, huh? Believe it or not, I made it myself, without any extra software or anything. John Sadowski has this nifty tutorial which explains all the steps for creating an image like this in Photoshop (link via LifeHacker). If you're like me, and don't have Photoshop, then you can accomplish the same effect with PaintDotNet, which is free, with two small changes:
1. Skip step 4.
2. After inverting the colours in step 5, go to Layers --> Adjustments --> Hue/Saturation and set the Saturation to 200 (all the way up).
Or, if you don't have PaintDotNet or Photoshop (or any other compatible editor), or are just plain lazy, you can go to myopticalillusion.com (also via LifeHacker), and just upload your image and let the site do everything for you. They also have a gallery with quite a few illusions made by others that you can check out, so if you like these eye-hurting image things, go check them out!
If you make one of your own, leave me a comment with a link to it!
Labels: Tech/Internet
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at 11:45 PM
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