---
title: bytesPerPlane
framework: appkit
role: symbol
role_heading: Instance Property
path: appkit/nsbitmapimagerep/bytesperplane
---

# bytesPerPlane

The number of bytes in each plane or channel of data.

## Declaration

```swift
var bytesPerPlane: Int { get }
```

## Discussion

Discussion This number is calculated from the number of bytes per row and the height of the image.

## See Also

### Getting Information About Images

- [bitmapFormat](appkit/nsbitmapimagerep/bitmapformat.md)
- [NSBitmapImageRep.Format](appkit/nsbitmapimagerep/format.md)
- [bitsPerPixel](appkit/nsbitmapimagerep/bitsperpixel.md)
- [bytesPerRow](appkit/nsbitmapimagerep/bytesperrow.md)
- [isPlanar](appkit/nsbitmapimagerep/isplanar.md)
- [numberOfPlanes](appkit/nsbitmapimagerep/numberofplanes.md)
- [samplesPerPixel](appkit/nsbitmapimagerep/samplesperpixel.md)