| Keyboard Shortcut | Menu Shortcut | Menu Location |
| ··· | Alt+R, D | Raster -> Dilate |
The Dilate command increases the size of bright regions of the image. For color images the effect can be very subtle; for black-and-white images it is usually quite noticeable.
Original color image
Dilated color image (the dilate command was used twice to visually enhance the difference)
Original black-and-white image
Dilated black-and-white image (the dilate command was only used once here)