---
title: AveragePixelLuminance
framework: metrickit
role: symbol
role_heading: Class
path: metrickit/averagepixelluminance
---

# AveragePixelLuminance

A unit for average pixel luminance measurements.

## Declaration

```swift
@objc final class AveragePixelLuminance
```

## Discussion

Discussion This is used as the Dimension type in value, which has type AverageStatistics<AveragePixelLuminance>. The base unit symbol is "apl" (average pixel luminance). This type replaces MXUnitAveragePixelLuminance.

## Topics

### Initializers

- [init(coder:)](metrickit/averagepixelluminance/init(coder:).md)
- [init(symbol:converter:)](metrickit/averagepixelluminance/init(symbol:converter:).md)

### Type Methods

- [baseUnit()](metrickit/averagepixelluminance/baseunit().md)

## Relationships

### Inherits From

- [Dimension](foundation/dimension.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)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### GPU and display metrics

- [GPUTimeMetric](metrickit/gputimemetric.md)
- [MetalFrameRateMetric](metrickit/metalframeratemetric.md)
- [PixelLuminanceMetric](metrickit/pixelluminancemetric.md)