There is a picture:
As you can see the grid is distorted. Must be on the basis of such image to generate the rules of distortion, so that it can be applied to other images.
What is it? For example:
1) Adhesive vehicle vinyl with an image grid
2) take pictures of
3) the Generated rules distortion
Now for all owners of cars of this model we can show how it will look one or another airbrush.
JAPANESE does not really matter, but still prefer php because it is convenient for the project, and speed doesn't play a big role.
I would like to link to any case, or at least understand what direction to go and what to Google.