This effect was generated in Filter Forge, a Photoshop plugin that allows you to create your own filters.
This filter makes an image appear as if it is being pulled tight by the corners. It allows for control of surface characteristics as well as the amount of tension applied to the corners. There is a separate control for refraction – set to zero will make the image look like it is behind a sheet of cellophane.
This filter has separate modes (checkbox) for square and non-square images. The square mode is much faster.
stretch hang pin corner corners pull tight cellophane plastic wrap