Here are seven photographs of trucks that have been circulating on the web and in people’s emails. This one below is bottle that appears to stick out onto the road. These photos are said to be real trucks painted to give an illusion the image is standing out but in fact none of them are real paintings. They might be another viral marketing trick similar to the cell phone popcorn hoax. You can still see the the original mail of the trucks I received here.
Below is a Photoshop comparison I made. Once a mask is drawn into the truck is it now much easer to insert any image onto the truck.
The image below shows two different contrast or histogram levels between the pouch and the truck indicating a retouch photo.
Below: The image below shows no shading on the edge of the billboard and remain focused as it becomes further away.
Below: Poor quality on the real truck but good quality on the yellow truck.
Below: Again, showing different contrast.
Below: The same brick post and tree on all the images. This time the scene is motion blurred. You might need to click “view larger” to see the bricks.
Below: Bad contrast. The person doing the hoax or editing might want to invest on a better quality camera and lens to capture the picture of the truck.
Ethically, revealing the work of an illusionist is wrong. But in a few circumstance they can be revealed when the author is passing them as though they are real. The illusionist should present their work as-is and let the audience decide.
Edit 8-31-08: I recently got an email response indicating that they are most likely a hijacked advertising competition photos fooling bloggers and email readers. This site here http://www.snopes.com/photos/arts/truckart.asp points out that the are just advertising competitions photos.