Convolution

Class: NodeImageConvolution

Node Icon

Convolve a given image with an arbitrary image kernel.

Inputs

Image

Input image.

Type: Image4DFloat, Required, Single

Kernel

Image to use as convolution kernel.

Type: Image4DFloat, Required, Single

Outputs

Output

Resulting image.

Type: Image4DFloat

Settings

Normalize Boolean

Normalize the output image by the sum of the kernel components.

Boundary Condition Selection

Set the boundary condition.

Values: ZeroPad, ZeroFluxNeumannPad, PeriodicPad

Output Region Mode Selection

Sets the output region mode. If set to SAME, the output region will be the same as the input region, and regions of the image near the boundaries will contain contributions from outside the input image as determined by the boundary condition. If set to VALID, the output region consists of pixels computed only from pixels in the input image (no extrapolated contributions from the boundary condition are needed). The output is therefore smaller than the input region.

Values: Same, Valid

References

The convolution operation implemented in SimpleITK