API: Soft-expand

Expands an image by warping the sides of the image.

Request
POST /backend/soft-expand
Account: demo
{
  "bottom": 100, 
  "input": "eff23c2eccefddd7a782...", 
  "left": 100, 
  "right": 100, 
  "slope": 0.3, 
  "top": 100
}
input The input image ID.
left, top, right, bottom The amount of pixels to add.
slope A value between 0.2 and 0.6. Larger values use a larger border and result in a more graceful expansion.
Response
200 OK
{"token": "a1b002..."}
token The resulting image.