Index - O
| off | Graphics.Image.ColorSpace, Graphics.Image.Types |
| on | Graphics.Image.ColorSpace, Graphics.Image.Types |
| Opaque | Graphics.Image.Interface, Graphics.Image.ColorSpace, Graphics.Image.Types |
| opaque | Graphics.Image.Interface |
| open | Graphics.Image.Processing.Binary |
| OutputFormat | Graphics.Image.IO.External, Graphics.Image.IO |