---
title: "init(Yp_bias:CbCr_bias:YpRangeMax:CbCrRangeMax:YpMax:YpMin:CbCrMax:CbCrMin:)"
framework: accelerate
role: symbol
role_heading: Initializer
path: "accelerate/vimage_ypcbcrpixelrange/init(yp_bias:cbcr_bias:yprangemax:cbcrrangemax:ypmax:ypmin:cbcrmax:cbcrmin:)"
---

# init(Yp_bias:CbCr_bias:YpRangeMax:CbCrRangeMax:YpMax:YpMin:CbCrMax:CbCrMin:)

Returns a structure describing range and clamping information for Y’CbCr pixel formats.

## Declaration

```swift
init(Yp_bias: Int32, CbCr_bias: Int32, YpRangeMax: Int32, CbCrRangeMax: Int32, YpMax: Int32, YpMin: Int32, CbCrMax: Int32, CbCrMin: Int32)
```

## Parameters

- `Yp_bias`: The encoding for Y' = 0.0 for this video format (varies by bit depth).
- `CbCr_bias`: The encoding for {Cb, Cr} = 0.0 for this video format. This is usually the middle of the range of CbCr, not the low end.
- `YpRangeMax`: The encoding for Y' = 1.0 for this video format. For video range, this is typically less than the maximum representable value.
- `CbCrRangeMax`: The encoding for {Cb, Cr} = 0.5 for this video format. This is usually near the high end of the encodable range (e.g. 0xf0), if not the maximum encodable value (e.g. 0xff).
- `YpMax`: The encoding for the maximum allowed Y’ value. All values larger than this will be clamped to this value.
- `YpMin`: The encoding of the minimum allowed Y’ value. All values less than this will be clamped to this value.
- `CbCrMax`: The encoding of the maximum allowed {Cb, Cr} value. All chroma values greater than this value will be clamped to this value.
- `CbCrMin`: The encoding of the minimum allowed {Cb, Cr} value. All chroma values less than this value will be clamped to this value.

## Return Value

Return Value A structure describing range and clamping information for Y’CbCr pixel formats.

## See Also

### Creating a Pixel Range

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