---
title: definition
framework: coreimage
role: symbol
role_heading: Instance Property
path: coreimage/ciimage/definition
---

# definition

Returns a filter shape object that represents the domain of definition of the image.

## Declaration

```swift
var definition: CIFilterShape { get }
```

## Return Value

Return Value A filter shape object.

## See Also

### Getting Image Information

- [extent](coreimage/ciimage/extent.md)
- [properties](coreimage/ciimage/properties.md)
- [url](coreimage/ciimage/url.md)
- [colorSpace](coreimage/ciimage/colorspace.md)
- [orientationTransform(forExifOrientation:)](coreimage/ciimage/orientationtransform(forexiforientation:).md)