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# BNNSFilterCreateLayerGram(_:_:)

Returns a new Gram matrix layer.

```
func BNNSFilterCreateLayerGram(_ layer_params: UnsafePointer<BNNSLayerParametersGram>, _ filter_params: UnsafePointer<BNNSFilterParameters>?) -> BNNSFilter?
```

## Parameters

`layer_params`

Layer parameters.

`filter_params`

The filter runtime parameters.

## Discussion

You use this layer to perform the Gram matrix calculation:

![](images/com.apple.accelerate/media-3562374@2x.png)

---

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