---
title: "init(device:gaussianSigma:minLineLength:maxLines:detailRatio:gradientThreshold:lineErrorThreshold:mergeLocalityThreshold:)"
framework: metalperformanceshaders
role: symbol
role_heading: Initializer
path: "metalperformanceshaders/mpsimageedlines/init(device:gaussiansigma:minlinelength:maxlines:detailratio:gradientthreshold:lineerrorthreshold:mergelocalitythreshold:)"
---

# init(device:gaussianSigma:minLineLength:maxLines:detailRatio:gradientThreshold:lineErrorThreshold:mergeLocalityThreshold:)

## Declaration

```swift
init(device: any MTLDevice, gaussianSigma: Float, minLineLength: UInt16, maxLines: Int, detailRatio: UInt16, gradientThreshold: Float, lineErrorThreshold: Float, mergeLocalityThreshold: Float)
```