---
title: MPSImageReduceUnary
framework: metalperformanceshaders
role: symbol
role_heading: Class
path: metalperformanceshaders/mpsimagereduceunary
---

# MPSImageReduceUnary

The base class for reduction filters that take a single source as input.

## Declaration

```swift
class MPSImageReduceUnary
```

## Topics

### Instance Properties

- [clipRectSource](metalperformanceshaders/mpsimagereduceunary/cliprectsource.md)

## Relationships

### Inherits From

- [MPSUnaryImageKernel](metalperformanceshaders/mpsunaryimagekernel.md)

### Inherited By

- [MPSImageReduceColumnMax](metalperformanceshaders/mpsimagereducecolumnmax.md)
- [MPSImageReduceColumnMean](metalperformanceshaders/mpsimagereducecolumnmean.md)
- [MPSImageReduceColumnMin](metalperformanceshaders/mpsimagereducecolumnmin.md)
- [MPSImageReduceColumnSum](metalperformanceshaders/mpsimagereducecolumnsum.md)
- [MPSImageReduceRowMax](metalperformanceshaders/mpsimagereducerowmax.md)
- [MPSImageReduceRowMean](metalperformanceshaders/mpsimagereducerowmean.md)
- [MPSImageReduceRowMin](metalperformanceshaders/mpsimagereducerowmin.md)
- [MPSImageReduceRowSum](metalperformanceshaders/mpsimagereducerowsum.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSCoding](foundation/nscoding.md)
- [NSCopying](foundation/nscopying.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [NSSecureCoding](foundation/nssecurecoding.md)

## See Also

### Image Reduction Filters

- [MPSImageReduceRowMax](metalperformanceshaders/mpsimagereducerowmax.md)
- [MPSImageReduceRowMin](metalperformanceshaders/mpsimagereducerowmin.md)
- [MPSImageReduceRowSum](metalperformanceshaders/mpsimagereducerowsum.md)
- [MPSImageReduceRowMean](metalperformanceshaders/mpsimagereducerowmean.md)
- [MPSImageReduceColumnMax](metalperformanceshaders/mpsimagereducecolumnmax.md)
- [MPSImageReduceColumnMin](metalperformanceshaders/mpsimagereducecolumnmin.md)
- [MPSImageReduceColumnSum](metalperformanceshaders/mpsimagereducecolumnsum.md)
- [MPSImageReduceColumnMean](metalperformanceshaders/mpsimagereducecolumnmean.md)