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# roundedRectangleGenerator()

Generates a rounded rectangle image.

```
class func roundedRectangleGenerator() -> any CIFilter & CIRoundedRectangleGenerator
```

## Return Value

The generated image.

## Discussion

This method generates a rounded rectangle image with the specified size, corner radius, and color properties.

The rounded rectangle generator filter uses the following properties:

- `color`: A [`CIColor`](/documentation/CoreImage/CIColor) representing the color of the rounded rectangle.
- `extent`: A <doc://com.apple.documentation/documentation/CoreFoundation/CGRect> representing the size of the rounded rectangle.
- `radius`: A `float` representing the curve of the rectangle’s corners.

The following code creates a filter that generates a light blue square with rounded corners:

```swift
func roundedRectangle () -> CIImage {
    let roundedRectangleGenerator = CIFilter.roundedRectangleGenerator()
    roundedRectangleGenerator.color = CIColor(red: 96/255, green: 173/255, blue: 193/255)
    roundedRectangleGenerator.extent = CGRect(x: 0, y: 1, width: 700, height: 700)
    roundedRectangleGenerator.radius = 100
    return roundedRectangleGenerator.outputImage!
}
```

![A light blue square with rounded corners.](images/com.apple.coreimage/media-3546319@2x.png)

---

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