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toolkit.solvers

DiffuseDirichlet

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object DiffuseDirichlet

Implements diffusion with both insulating and Dirichlet boundary constraints using a multigrid algorithm.

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  4. def apply(image: libcog.Field, sources: libcog.ScalarField, iterationCap: Int = 40): libcog.Field

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    Diffuse from "sources" in "image" until diffusion stops at insulating "boundaries".

    Diffuse from "sources" in "image" until diffusion stops at insulating "boundaries".

    image

    The image to be diffused.

    sources

    The pixels in the image which are to be considered Dirichlet boundaries or sources that do not change as a result of the diffusion. A non-zero scalar in the field => "source", while a zero scalar => pixel that can be diffused through. This field essentially samples "image" to define the Dirichlet boundary constraints. THIS SHOULD BE A BINARY FIELD, 0's and 1's.

    iterationCap

    The maximum number of diffusion iterations to run per level in the image pyramid.

    returns

    The diffused version of "image" subject to the constraints in "sources" and "boundaries"

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