OSX 10.8 or higher
Drag and drop your project folder and press the green button to measure how many pixels you have in it.
Give it some time and watch how the number grows. PixelCounter.js will check all your files and count only the ones with the selected extensions (bmp, gif, jpg, jpeg, png, psd, tiff, webp, svg).
When the counter finishes, share the result with your geeky friends on Facebook or Twitter, or start counting again.