# unpackChannelsFromBitmask

Source: https://www.nianticspatial.com/docs/api/swift/NSDK.NSDKSceneSegmentationSession.method-unpackChannelsFromBitmask/

unpackChannelsFromBitmask

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## Declaration

func unpackChannelsFromBitmask(bitmask: UInt32) -> SceneSegmentationChannels

#### Summary

Unpacks semantic channels from a packed channel bitmask.
This method converts a bitmask value from a packed channel pixel into a SceneSegmentationChannels
OptionSet, where each bit represents a semantic channel (bit 0 = Sky, bit 1 = Ground, etc.).

#### Returns

A SceneSegmentationChannels OptionSet representing the channels present in the bitmask

### Parameters

| Name | Type | Summary |
| --- | --- | --- |
| bitmask | UInt32 | The value of a pixel from an image returned by `latestPackedChannels()` |

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