---
title: "init(device:linearToGrayScaleTransform:sigma:)"
framework: metalperformanceshaders
role: symbol
role_heading: Initializer
path: "metalperformanceshaders/mpsimagecanny/init(device:lineartograyscaletransform:sigma:)"
---

# init(device:linearToGrayScaleTransform:sigma:)

## Declaration

```swift
init(device: any MTLDevice, linearToGrayScaleTransform transform: UnsafePointer<Float>, sigma: Float)
```