---
title: fillExtendedPixels()
framework: corevideo
role: symbol
role_heading: Instance Method
path: corevideo/cvmutablepixelbuffer/fillextendedpixels()
---

# fillExtendedPixels()

Fills the extended pixels of the pixel buffer. This method replicates the edge pixels to fill the entire extended region of the image.

## Declaration

```swift
@discardableResult mutating func fillExtendedPixels() -> Bool
```

## Discussion

Discussion Returns false if this operation is not supported by the pixel format.