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# init(input:configuration:)

Creates a session from a specified directory of images.

```
convenience init(input: URL, configuration: PhotogrammetrySession.Configuration = Configuration()) throws
```

## Parameters

`input`

the directory <doc://com.apple.documentation/documentation/Foundation/URL> containing a folder of images to use as reconstruction inputs.

`configuration`

the configuration to use for this session.

## Discussion

Creates a new session instance using all images in the specified <doc://com.apple.documentation/documentation/Foundation/URL> input directory <doc://com.apple.documentation/documentation/Foundation/URL> as samples for reconstruction.

> Throws: if `input` is not a file <doc://com.apple.documentation/documentation/Foundation/URL>.

---

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