---
title: R_Cb
framework: accelerate
role: symbol
role_heading: Instance Property
path: accelerate/vimage_argbtoypcbcrmatrix/r_cb
---

# R_Cb

The R_Cb value in the conversion matrix.

## Declaration

```swift
var R_Cb: Float
```

## See Also

### Conversion matrix elements

- [R_Yp](accelerate/vimage_argbtoypcbcrmatrix/r_yp.md)
- [G_Yp](accelerate/vimage_argbtoypcbcrmatrix/g_yp.md)
- [B_Yp](accelerate/vimage_argbtoypcbcrmatrix/b_yp.md)
- [G_Cb](accelerate/vimage_argbtoypcbcrmatrix/g_cb.md)
- [B_Cb_R_Cr](accelerate/vimage_argbtoypcbcrmatrix/b_cb_r_cr.md)
- [G_Cr](accelerate/vimage_argbtoypcbcrmatrix/g_cr.md)
- [B_Cr](accelerate/vimage_argbtoypcbcrmatrix/b_cr.md)