---
title: "vImageCVImageFormat_Copy(_:)"
framework: accelerate
role: symbol
role_heading: Function
path: "accelerate/vimagecvimageformat_copy(_:)"
---

# vImageCVImageFormat_Copy(_:)

Returns a mutable copy of an immutable Core Video image format.

## Declaration

```swift
func vImageCVImageFormat_Copy(_ format: vImageConstCVImageFormat) -> Unmanaged<vImageCVImageFormat>!
```

## Parameters

- `format`: The Core Video image format to copy.

## Return Value

Return Value A vImageCVImageFormat instance.

## Discussion

Discussion This function doesn’t copy the image format’s user data or the release callback.