Parameters
| Name | Type | Mode |
|---|---|---|
| rast1 | USER-DEFINED | IN |
| nband1 | integer | IN |
| rast2 | USER-DEFINED | IN |
| nband2 | integer | IN |
| callbackfunc | regprocedure | IN |
| pixeltype | text | IN |
| extenttype | text | IN |
| customextent | USER-DEFINED | IN |
| distancex | integer | IN |
| distancey | integer | IN |
| userargs | ARRAY | IN |