Fools Those Pesky Red Light Cams
To understand the noPhoto, it helps to have a basic understanding of photography. Generally speaking, the amount of light that a camera collects while taking a picture is called "exposure." If there is not enough light, than the final picture will be too dark to see much. Conversely, if there is too much light, the picture will be too bright to see. At the most basic level, what the noPhoto does is make the license plate portion of the image too bright for the camera's sensor to handle. The noPhoto is so powerful that it causes what are called "blown highlights" - that is, the brightness is so overwhelming that the camera sees the image as a featureless field of white light. As you can see in the image below, the camera simply can't see the license plate.