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--- |
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title: Power Layer |
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--- |
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# Power Layer |
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* Layer type: `Power` |
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* [Doxygen Documentation](http://caffe.berkeleyvision.org/doxygen/classcaffe_1_1PowerLayer.html) |
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* Header: [`./include/caffe/layers/power_layer.hpp`](https://github.com/BVLC/caffe/blob/master/include/caffe/layers/power_layer.hpp) |
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* CPU implementation: [`./src/caffe/layers/power_layer.cpp`](https://github.com/BVLC/caffe/blob/master/src/caffe/layers/power_layer.cpp) |
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* CUDA GPU implementation: [`./src/caffe/layers/power_layer.cu`](https://github.com/BVLC/caffe/blob/master/src/caffe/layers/power_layer.cu) |
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The `Power` layer computes the output as (shift + scale * x) ^ power for each input element x. |
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## Parameters |
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* Parameters (`PowerParameter power_param`) |
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- Optional |
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- `power` [default 1] |
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- `scale` [default 1] |
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- `shift` [default 0] |
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* From [`./src/caffe/proto/caffe.proto`](https://github.com/BVLC/caffe/blob/master/src/caffe/proto/caffe.proto): |
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{% highlight Protobuf %} |
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{% include proto/PowerParameter.txt %} |
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{% endhighlight %} |
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## Sample |
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layer { |
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name: "layer" |
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bottom: "in" |
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top: "out" |
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type: "Power" |
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power_param { |
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power: 1 |
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scale: 1 |
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shift: 0 |
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} |
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} |
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## See also |
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* [Exponential layer](exp.html) |
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