---
title: "vImageConvert_ARGB8888toPlanarF(_:_:_:_:_:_:_:_:)"
framework: accelerate
role: symbol
role_heading: Function
path: "accelerate/vimageconvert_argb8888toplanarf(_:_:_:_:_:_:_:_:)"
---

# vImageConvert_ARGB8888toPlanarF(_:_:_:_:_:_:_:_:)

Deinterleaves an 8-bit-per-channel, 4-channel interleaved buffer into four floating-point 32-bit planar buffers.

## Declaration

```swift
func vImageConvert_ARGB8888toPlanarF(_ src: UnsafePointer<vImage_Buffer>!, _ alpha: UnsafePointer<vImage_Buffer>!, _ red: UnsafePointer<vImage_Buffer>!, _ green: UnsafePointer<vImage_Buffer>!, _ blue: UnsafePointer<vImage_Buffer>!, _ maxFloat: UnsafePointer<Float>!, _ minFloat: UnsafePointer<Float>!, _ flags: vImage_Flags) -> vImage_Error
```

## Parameters

- `src`: The source vImage buffer.
- `alpha`: A pointer to the alpha destination vImage buffer structure. You’re responsible for filling out the doc://com.apple.accelerate/documentation/Accelerate/vImage_Buffer/height, doc://com.apple.accelerate/documentation/Accelerate/vImage_Buffer/width, and doc://com.apple.accelerate/documentation/Accelerate/vImage_Buffer/rowBytes fields of this structure, and for allocating a data buffer of the appropriate size. On return, the data buffer this structure points to contains the alpha destination image data. When you no longer need the data buffer, deallocate the memory to prevent memory leaks.
- `red`: A pointer to the red destination vImage buffer structure. You’re responsible for filling out the doc://com.apple.accelerate/documentation/Accelerate/vImage_Buffer/height, doc://com.apple.accelerate/documentation/Accelerate/vImage_Buffer/width, and doc://com.apple.accelerate/documentation/Accelerate/vImage_Buffer/rowBytes fields of this structure, and for allocating a data buffer of the appropriate size. On return, the data buffer this structure points to contains the red destination image data. When you no longer need the data buffer, deallocate the memory to prevent memory leaks.
- `green`: A pointer to the green destination vImage buffer structure. You’re responsible for filling out the doc://com.apple.accelerate/documentation/Accelerate/vImage_Buffer/height, doc://com.apple.accelerate/documentation/Accelerate/vImage_Buffer/width, and doc://com.apple.accelerate/documentation/Accelerate/vImage_Buffer/rowBytes fields of this structure, and for allocating a data buffer of the appropriate size. On return, the data buffer this structure points to contains the green destination image data. When you no longer need the data buffer, deallocate the memory to prevent memory leaks.
- `blue`: A pointer to the blue destination vImage buffer structure. You’re responsible for filling out the doc://com.apple.accelerate/documentation/Accelerate/vImage_Buffer/height, doc://com.apple.accelerate/documentation/Accelerate/vImage_Buffer/width, and doc://com.apple.accelerate/documentation/Accelerate/vImage_Buffer/rowBytes fields of this structure, and for allocating a data buffer of the appropriate size. On return, the data buffer this structure points to contains the blue destination image data. When you no longer need the data buffer, deallocate the memory to prevent memory leaks.
- `maxFloat`: The maximum pixel value for the destination image.
- `minFloat`: The minimum pixel value for the destination image.
- `flags`: The options to use when performing the operation. If your code implements its own tiling or its own multithreading, pass doc://com.apple.accelerate/documentation/Accelerate/kvImageDoNotTile; otherwise, pass doc://com.apple.accelerate/documentation/Accelerate/kvImageNoFlags.

## Return Value

Return Value kvImageNoError; otherwise, one of the error codes in Data Types and Constants.

## Discussion

Discussion The function uses the following calculation to perform the conversion:  float result = (maxFloat - minFloat) * (float) srcPixel / 255.0  + minFloat The source and destination buffers need to have the same height and width.

## See Also

### Deinterleaving unsigned 8-bit, four-channel interleaved buffers

- [vImageConvert_BGRX8888ToPlanar8(_:_:_:_:_:)](accelerate/vimageconvert_bgrx8888toplanar8(_:_:_:_:_:).md)
- [vImageConvert_XRGB8888ToPlanar8(_:_:_:_:_:)](accelerate/vimageconvert_xrgb8888toplanar8(_:_:_:_:_:).md)
- [vImageConvert_ARGB8888toPlanar8(_:_:_:_:_:_:)](accelerate/vimageconvert_argb8888toplanar8(_:_:_:_:_:_:).md)
- [vImageConvert_ARGB8888toPlanar16Q12(_:_:_:_:_:_:)](accelerate/vimageconvert_argb8888toplanar16q12(_:_:_:_:_:_:).md)