---
title: "init(c0:c1:c2:c3:gamma:cutoff:c4:c5:)"
framework: accelerate
role: symbol
role_heading: Initializer
path: "accelerate/vimagetransferfunction/init(c0:c1:c2:c3:gamma:cutoff:c4:c5:)"
---

# init(c0:c1:c2:c3:gamma:cutoff:c4:c5:)

Creates a structure that represents a transfer function to convert from linear to nonlinear RGB.

## Declaration

```swift
init(c0: CGFloat, c1: CGFloat, c2: CGFloat, c3: CGFloat, gamma: CGFloat, cutoff: CGFloat, c4: CGFloat, c5: CGFloat)
```

## Parameters

- `c0`: The c0 value in the transfer function.
- `c1`: The c1 value in the transfer function.
- `c2`: The c2 value in the transfer function.
- `c3`: The c3 value in the transfer function.
- `gamma`: The gamma value in the transfer function.
- `cutoff`: The cutoff value in the transfer function.
- `c4`: The c4 value in the transfer function.
- `c5`: The c5 value in the transfer function.

## Return Value

Return Value A new structure that represents a transfer function.

## Discussion

Discussion Listing 1. if (R >= cutoff) {     R' = c0 * pow( c1 * R + c2, gamma ) + c3 }  else {     R' = c4 * R + c5                              }

## See Also

### Initializers

- [init()](accelerate/vimagetransferfunction/init().md)