---
title: init()
framework: accelerate
role: symbol
role_heading: Initializer
path: accelerate/vimagechanneldescription/init()
---

# init()

Returns an empty structure that describes the range and clamp limits for a pixel format.

## Declaration

```swift
init()
```

## See Also

### Creating a channel description

- [init(min:zero:full:max:)](accelerate/vimagechanneldescription/init(min:zero:full:max:).md)