---
title: keepNetworkOutput
framework: vision
role: symbol
role_heading: Instance Property
path: vision/vngenerateopticalflowrequest/keepnetworkoutput
---

# keepNetworkOutput

A Boolean value that indicates whether to keep the raw pixel buffer coming from the machine learning network.

## Declaration

```swift
var keepNetworkOutput: Bool { get set }
```

## Discussion

Discussion The default is false. When you set this to true, the system ignores outputPixelFormat. Setting this for revision 1 has no effect because it’s not machine learning-based.

## See Also

### Configuring the Request

- [computationAccuracy](vision/vngenerateopticalflowrequest/computationaccuracy-swift.property.md)
- [VNGenerateOpticalFlowRequest.ComputationAccuracy](vision/vngenerateopticalflowrequest/computationaccuracy-swift.enum.md)
- [outputPixelFormat](vision/vngenerateopticalflowrequest/outputpixelformat.md)