---
title: workingFormat
framework: coreimage
role: symbol
role_heading: Instance Property
path: coreimage/cicontext/workingformat
---

# workingFormat

The working pixel format of the Core Image context.

## Declaration

```swift
var workingFormat: CIFormat { get }
```

## Discussion

Discussion The working format determines the pixel format that Core Image uses to create intermediate buffers for executing filter kernels. Core Image automatically converts to and from the source and destination pixel formats of input images and output  contexts. You specify a working pixel format using the workingFormat key in the options dictionary when creating a Core Image context.

## See Also

### Managing Resources

- [clearCaches()](coreimage/cicontext/clearcaches().md)
- [reclaimResources()](coreimage/cicontext/reclaimresources().md)
- [offlineGPUCount()](coreimage/cicontext/offlinegpucount().md)
- [workingColorSpace](coreimage/cicontext/workingcolorspace.md)