---
title: "init(_:)"
framework: vision
role: symbol
role_heading: Initializer
path: "vision/detectcontoursrequest/init(_:)"
---

# init(_:)

Creates a contour-detection request.

## Declaration

```swift
init(_ revision: DetectContoursRequest.Revision? = nil)
```

## Parameters

- `revision`: The specific algorithm or implementation revision that performs the request.