---
title: vImageCVImageFormat.Format.format4Indexed
framework: accelerate
role: symbol
role_heading: Case
path: accelerate/vimagecvimageformat/format/format4indexed
---

# vImageCVImageFormat.Format.format4Indexed

A 4-bit indexed pixel format.

## Declaration

```swift
case format4Indexed
```

## Discussion

Discussion This pixel format supports color spaces that are either CGColorSpaceModel.monochrome or CGColorSpaceModel.indexed.

## See Also

### Indexed color format constants

- [vImageCVImageFormat.Format.format1Monochrome](accelerate/vimagecvimageformat/format/format1monochrome.md)
- [vImageCVImageFormat.Format.format1IndexedGray_WhiteIsZero](accelerate/vimagecvimageformat/format/format1indexedgray_whiteiszero.md)
- [vImageCVImageFormat.Format.format2Indexed](accelerate/vimagecvimageformat/format/format2indexed.md)
- [vImageCVImageFormat.Format.format2IndexedGray_WhiteIsZero](accelerate/vimagecvimageformat/format/format2indexedgray_whiteiszero.md)
- [vImageCVImageFormat.Format.format4IndexedGray_WhiteIsZero](accelerate/vimagecvimageformat/format/format4indexedgray_whiteiszero.md)
- [vImageCVImageFormat.Format.format8Indexed](accelerate/vimagecvimageformat/format/format8indexed.md)
- [vImageCVImageFormat.Format.format8IndexedGray_WhiteIsZero](accelerate/vimagecvimageformat/format/format8indexedgray_whiteiszero.md)