---
title: minKernelDiameter()
framework: metalperformanceshaders
role: symbol
role_heading: Type Method
path: metalperformanceshaders/mpsimagemedian/minkerneldiameter()
---

# minKernelDiameter()

Queries the minimum diameter, in pixels, of the filter window supported by the median filter.

## Declaration

```swift
class func minKernelDiameter() -> Int
```

## Return Value

Return Value Returns the minimum diameter, in pixels, of the filter window supported by the median filter.

## See Also

### Methods

- [init(device:kernelDiameter:)](metalperformanceshaders/mpsimagemedian/init(device:kerneldiameter:).md)
- [maxKernelDiameter()](metalperformanceshaders/mpsimagemedian/maxkerneldiameter().md)