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# CGInterpolationQuality

Levels of interpolation quality for rendering an image.

```
enum CGInterpolationQuality
```

## Overview

You use the function [`CGContextSetInterpolationQuality`](/documentation/CoreGraphics/CGContextSetInterpolationQuality) to set the interpolation quality in a graphics context.

## Topics

### Constants

[`CGInterpolationQuality.default`](/documentation/CoreGraphics/CGInterpolationQuality/default)

The default level of quality.

[`CGInterpolationQuality.none`](/documentation/CoreGraphics/CGInterpolationQuality/none)

No interpolation.

[`CGInterpolationQuality.low`](/documentation/CoreGraphics/CGInterpolationQuality/low)

A low level of interpolation quality. This setting may speed up image rendering.

[`CGInterpolationQuality.medium`](/documentation/CoreGraphics/CGInterpolationQuality/medium)

A medium level of interpolation quality. This setting is slower than the low setting but faster than the high setting.

[`CGInterpolationQuality.high`](/documentation/CoreGraphics/CGInterpolationQuality/high)

A high level of interpolation quality. This setting may slow down image rendering.


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