---
title: vDSP.DCT
framework: accelerate
role: symbol
role_heading: Class
path: accelerate/vdsp/dct
---

# vDSP.DCT

A single-precision discrete cosine transform.

## Declaration

```swift
class DCT
```

## Topics

### Initializers

- [init(previous:count:transformType:)](accelerate/vdsp/dct/init(previous:count:transformtype:).md)

### Instance Methods

- [transform(_:)](accelerate/vdsp/dct/transform(_:).md)
- [transform(_:result:)](accelerate/vdsp/dct/transform(_:result:).md)

## See Also

### Objects that Simplify Discrete Cosine Transforms

- [vDSP.DCTTransformType](accelerate/vdsp/dcttransformtype.md)