Divides the image into certain number of rings. Each ring is rotated according to a rotate angle.

Distort the image in a circular random form.
| Framework | Member |
|---|---|
| .NET | RingEffectCommand |
| .NET 6+ | RingEffectCommand |
| C DLL | L_RingEffectBitmap |
| C++ Class Library | LBitmap::RingEffect |
Imaging Pro, Document, & Medical