# Convolutional Layers ## KerasConvolution2D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasConvolution2D.java) Imports a 2D Convolution layer from Keras. **KerasConvolution2D** ``` public KerasConvolution2D(Integer kerasVersion) throws UnsupportedKerasConfigurationException ``` Pass-through constructor from KerasLayer * param kerasVersion major keras version * throws UnsupportedKerasConfigurationException Unsupported Keras config **getConvolution2DLayer** ``` public ConvolutionLayer getConvolution2DLayer() ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasCropping2D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasCropping2D.java) Imports a Keras Cropping 2D layer. **KerasCropping2D** ``` public KerasCropping2D(Map layerConfig) throws InvalidKerasConfigurationException, UnsupportedKerasConfigurationException ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration. * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getCropping2DLayer** ``` public Cropping2D getCropping2DLayer() ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * param enforceTrainingConfig whether to enforce training-related configuration options * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasUpsampling3D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasUpsampling3D.java) Keras Upsampling3D layer support **KerasUpsampling3D** ``` public KerasUpsampling3D(Map layerConfig) throws InvalidKerasConfigurationException, UnsupportedKerasConfigurationException ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration. * throws InvalidKerasConfigurationException Invalid Keras configuration exception * throws UnsupportedKerasConfigurationException Unsupported Keras configuration exception **getUpsampling3DLayer** ``` public Upsampling3D getUpsampling3DLayer() ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * param enforceTrainingConfig whether to enforce training-related configuration options * throws InvalidKerasConfigurationException Invalid Keras configuration exception * throws UnsupportedKerasConfigurationException Invalid Keras configuration exception **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasConvolution1D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasConvolution1D.java) Imports a 1D Convolution layer from Keras. **KerasConvolution1D** ``` public KerasConvolution1D(Integer kerasVersion) throws UnsupportedKerasConfigurationException ``` Pass-through constructor from KerasLayer * param kerasVersion major keras version * throws UnsupportedKerasConfigurationException **getConvolution1DLayer** ``` public Convolution1DLayer getConvolution1DLayer() ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * throws InvalidKerasConfigurationException * throws UnsupportedKerasConfigurationException **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException **getInputPreprocessor** ``` public InputPreProcessor getInputPreprocessor(InputType... inputType) throws InvalidKerasConfigurationException ``` Gets appropriate DL4J InputPreProcessor for given InputTypes. * param inputType Array of InputTypes * return DL4J InputPreProcessor * throws InvalidKerasConfigurationException Invalid Keras configuration exception * see org.deeplearning4j.nn.conf.InputPreProcessor **setWeights** ``` public void setWeights(Map weights) throws InvalidKerasConfigurationException ``` Set weights for layer. * param weights Map from parameter name to INDArray. ## KerasUpsampling1D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasUpsampling1D.java) Keras Upsampling1D layer support **KerasUpsampling1D** ``` public KerasUpsampling1D(Map layerConfig) throws InvalidKerasConfigurationException, UnsupportedKerasConfigurationException ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration. * throws InvalidKerasConfigurationException Invalid Keras configuration exception * throws UnsupportedKerasConfigurationException Unsupported Keras configuration exception **getUpsampling1DLayer** ``` public Upsampling1D getUpsampling1DLayer() ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * param enforceTrainingConfig whether to enforce training-related configuration options * throws InvalidKerasConfigurationException Invalid Keras configuration exception * throws UnsupportedKerasConfigurationException Invalid Keras configuration exception **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasAtrousConvolution2D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasAtrousConvolution2D.java) Keras 1D atrous / dilated convolution layer. Note that in keras 2 this layer has been removed and dilations are now available through the “dilated” argument in regular Conv1D layers author: Max Pumperla **KerasAtrousConvolution2D** ``` public KerasAtrousConvolution2D(Integer kerasVersion) throws UnsupportedKerasConfigurationException ``` Pass-through constructor from KerasLayer * param kerasVersion major keras version * throws UnsupportedKerasConfigurationException Unsupported Keras config **getAtrousConvolution2D** ``` public ConvolutionLayer getAtrousConvolution2D() ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasAtrousConvolution1D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasAtrousConvolution1D.java) Keras 1D atrous / dilated convolution layer. Note that in keras 2 this layer has been removed and dilations are now available through the “dilated” argument in regular Conv1D layers author: Max Pumperla **KerasAtrousConvolution1D** ``` public KerasAtrousConvolution1D(Integer kerasVersion) throws UnsupportedKerasConfigurationException ``` Pass-through constructor from KerasLayer * param kerasVersion major keras version * throws UnsupportedKerasConfigurationException Unsupported Keras config **getAtrousConvolution1D** ``` public Convolution1DLayer getAtrousConvolution1D() ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasCropping3D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasCropping3D.java) Imports a Keras Cropping 3D layer. **KerasCropping3D** ``` public KerasCropping3D(Map layerConfig) throws InvalidKerasConfigurationException, UnsupportedKerasConfigurationException ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration. * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getCropping3DLayer** ``` public Cropping3D getCropping3DLayer() ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * param enforceTrainingConfig whether to enforce training-related configuration options * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasZeroPadding2D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasZeroPadding2D.java) Imports a Keras ZeroPadding 2D layer. **KerasZeroPadding2D** ``` public KerasZeroPadding2D(Map layerConfig) throws InvalidKerasConfigurationException, UnsupportedKerasConfigurationException ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration. * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getZeroPadding2DLayer** ``` public ZeroPaddingLayer getZeroPadding2DLayer() ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * param enforceTrainingConfig whether to enforce training-related configuration options * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasConvolution3D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasConvolution3D.java) Imports a 3D Convolution layer from Keras. **KerasConvolution3D** ``` public KerasConvolution3D(Integer kerasVersion) throws UnsupportedKerasConfigurationException ``` Pass-through constructor from KerasLayer * param kerasVersion major keras version * throws UnsupportedKerasConfigurationException Unsupported Keras config **getConvolution3DLayer** ``` public ConvolutionLayer getConvolution3DLayer() ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasDeconvolution2D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasDeconvolution2D.java) Imports a 2D Deconvolution layer from Keras. **KerasDeconvolution2D** ``` public KerasDeconvolution2D(Integer kerasVersion) throws UnsupportedKerasConfigurationException ``` Pass-through constructor from KerasLayer * param kerasVersion major keras version * throws UnsupportedKerasConfigurationException Unsupported Keras config **getDeconvolution2DLayer** ``` public Deconvolution2D getDeconvolution2DLayer() ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasZeroPadding3D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasZeroPadding3D.java) Imports a Keras ZeroPadding 3D layer. **KerasZeroPadding3D** ``` public KerasZeroPadding3D(Map layerConfig) throws InvalidKerasConfigurationException, UnsupportedKerasConfigurationException ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration. * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getZeroPadding3DLayer** ``` public ZeroPadding3DLayer getZeroPadding3DLayer() ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * param enforceTrainingConfig whether to enforce training-related configuration options * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasConvolutionUtils [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasConvolutionUtils.java) Utility functionality for Keras convolution layers. **getConvolutionModeFromConfig** ``` public static ConvolutionMode getConvolutionModeFromConfig(Map layerConfig, KerasLayerConfiguration conf) throws InvalidKerasConfigurationException, UnsupportedKerasConfigurationException ``` Get (convolution) stride from Keras layer configuration. * param layerConfig dictionary containing Keras layer configuration * return Strides array from Keras configuration * throws InvalidKerasConfigurationException Invalid Keras config ## KerasZeroPadding1D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasZeroPadding1D.java) Imports a Keras ZeroPadding 1D layer. **KerasZeroPadding1D** ``` public KerasZeroPadding1D(Map layerConfig) throws InvalidKerasConfigurationException, UnsupportedKerasConfigurationException ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration. * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getZeroPadding1DLayer** ``` public ZeroPadding1DLayer getZeroPadding1DLayer() ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * param enforceTrainingConfig whether to enforce training-related configuration options * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasCropping1D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasCropping1D.java) Imports a Keras Cropping 1D layer. **KerasCropping1D** ``` public KerasCropping1D(Map layerConfig) throws InvalidKerasConfigurationException, UnsupportedKerasConfigurationException ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration. * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getCropping1DLayer** ``` public Cropping1D getCropping1DLayer() ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * param enforceTrainingConfig whether to enforce training-related configuration options * throws InvalidKerasConfigurationException Invalid Keras config * throws UnsupportedKerasConfigurationException Unsupported Keras config **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasSpaceToDepth [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasSpaceToDepth.java) Constructor from parsed Keras layer configuration dictionary. **KerasSpaceToDepth** ``` public KerasSpaceToDepth(Map layerConfig, boolean enforceTrainingConfig) throws InvalidKerasConfigurationException, UnsupportedKerasConfigurationException ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * param enforceTrainingConfig whether to enforce training-related configuration options * throws InvalidKerasConfigurationException Invalid Keras configuration exception * throws UnsupportedKerasConfigurationException Unsupported Keras configuration exception **getSpaceToDepthLayer** ``` public SpaceToDepthLayer getSpaceToDepthLayer() ``` Get DL4J SpaceToDepth layer. * return SpaceToDepth layer **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasUpsampling2D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasUpsampling2D.java) Keras Upsampling2D layer support **KerasUpsampling2D** ``` public KerasUpsampling2D(Map layerConfig) throws InvalidKerasConfigurationException, UnsupportedKerasConfigurationException ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration. * throws InvalidKerasConfigurationException Invalid Keras configuration exception * throws UnsupportedKerasConfigurationException Unsupported Keras configuration exception **getUpsampling2DLayer** ``` public Upsampling2D getUpsampling2DLayer() ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * param enforceTrainingConfig whether to enforce training-related configuration options * throws InvalidKerasConfigurationException Invalid Keras configuration exception * throws UnsupportedKerasConfigurationException Invalid Keras configuration exception **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasSeparableConvolution2D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasSeparableConvolution2D.java) Keras separable convolution 2D layer support **KerasSeparableConvolution2D** ``` public KerasSeparableConvolution2D(Integer kerasVersion) throws UnsupportedKerasConfigurationException ``` Pass-through constructor from KerasLayer * param kerasVersion major keras version * throws UnsupportedKerasConfigurationException Unsupported Keras configuration **setWeights** ``` public void setWeights(Map weights) throws InvalidKerasConfigurationException ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * throws InvalidKerasConfigurationException Invalid Keras configuration * throws UnsupportedKerasConfigurationException Unsupported Keras configuration **getSeparableConvolution2DLayer** ``` public SeparableConvolution2D getSeparableConvolution2DLayer() ``` Get DL4J SeparableConvolution2D. * return SeparableConvolution2D **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config ## KerasDepthwiseConvolution2D [\[source\]](https://github.com/eclipse/deeplearning4j/tree/master/deeplearning4j/deeplearning4j-modelimport/src/main/java/org/deeplearning4j/nn/modelimport/keras/layers/convolutional/KerasDepthwiseConvolution2D.java) Keras depth-wise convolution 2D layer support **KerasDepthwiseConvolution2D** ``` public KerasDepthwiseConvolution2D(Integer kerasVersion) throws UnsupportedKerasConfigurationException ``` Pass-through constructor from KerasLayer * param kerasVersion major keras version * throws UnsupportedKerasConfigurationException Unsupported Keras configuration **setWeights** ``` public void setWeights(Map weights) throws InvalidKerasConfigurationException ``` Constructor from parsed Keras layer configuration dictionary. * param layerConfig dictionary containing Keras layer configuration * throws InvalidKerasConfigurationException Invalid Keras configuration * throws UnsupportedKerasConfigurationException Unsupported Keras configuration **getDepthwiseConvolution2DLayer** ``` public DepthwiseConvolution2D getDepthwiseConvolution2DLayer() ``` Get DL4J DepthwiseConvolution2D. * return DepthwiseConvolution2D **getOutputType** ``` public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException ``` Get layer output type. * param inputType Array of InputTypes * return output type as InputType * throws InvalidKerasConfigurationException Invalid Keras config