---
title: BNNSPoolingFunctionUnMax
framework: accelerate
role: symbol
role_heading: Global Variable
path: accelerate/bnnspoolingfunctionunmax
---

# BNNSPoolingFunctionUnMax

A function for pooling that’s the partial inverse of max pooling and sets all nonmaximal values to zero.

## Declaration

```swift
var BNNSPoolingFunctionUnMax: BNNSPoolingFunction { get }
```

## See Also

### Raw Values

- [init(_:)](accelerate/bnnspoolingfunction/init(_:).md)
- [init(rawValue:)](accelerate/bnnspoolingfunction/init(rawvalue:).md)
- [rawValue](accelerate/bnnspoolingfunction/rawvalue.md)
- [BNNSPoolingFunctionAverageCountIncludePadding](accelerate/bnnspoolingfunctionaveragecountincludepadding.md)
- [BNNSPoolingFunctionAverageCountExcludePadding](accelerate/bnnspoolingfunctionaveragecountexcludepadding.md)
- [BNNSPoolingFunctionL2Norm](accelerate/bnnspoolingfunctionl2norm.md)