Texture Ripper is an amazing feature, part of a free tool called shoebox. With it, you can extract a texture from a photo with ease. In this video I'll show you how to use texture ripper, and bring your textures into blender. While there are a variety of a ways to make a texture for for 3D modeling, this has to be one of the simplest I have ever seen.
Links:
Shoebox (Texture Ripper) http://renderhjs.net/shoebox/
Adobe Air: https://airsdk.harman.com/runtime