View Source Evision.Alphamat (Evision v0.2.17-rc1)

Summary

Types

t()

Type that represents an Alphamat struct.

Functions

infoFlow(named_args)
infoFlow(image, tmap)

Compute alpha matte of an object in an image

infoFlow(image, tmap, opts)

Compute alpha matte of an object in an image

Types

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t()

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@type t() :: %Evision.Alphamat{ref: reference()}

Type that represents an Alphamat struct.

  • ref. reference()

    The underlying erlang resource variable.

Functions

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infoFlow(named_args)

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@spec infoFlow(Keyword.t()) :: any() | {:error, String.t()}
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infoFlow(image, tmap)

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@spec infoFlow(Evision.Mat.maybe_mat_in(), Evision.Mat.maybe_mat_in()) ::
  Evision.Mat.t() | {:error, String.t()}

Compute alpha matte of an object in an image

Positional Arguments
Return

  • result: Evision.Mat.t().

    Output alpha matte image

The function infoFlow performs alpha matting on a RGB image using a greyscale trimap image, and outputs a greyscale alpha matte image. The output alpha matte can be used to softly extract the foreground object from a background image. Examples can be found in the samples directory.

Python prototype (for reference only):

infoFlow(image, tmap[, result]) -> result
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infoFlow(image, tmap, opts)

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@spec infoFlow(
  Evision.Mat.maybe_mat_in(),
  Evision.Mat.maybe_mat_in(),
  [{atom(), term()}, ...] | nil
) ::
  Evision.Mat.t() | {:error, String.t()}

Compute alpha matte of an object in an image

Positional Arguments
Return

  • result: Evision.Mat.t().

    Output alpha matte image

The function infoFlow performs alpha matting on a RGB image using a greyscale trimap image, and outputs a greyscale alpha matte image. The output alpha matte can be used to softly extract the foreground object from a background image. Examples can be found in the samples directory.

Python prototype (for reference only):

infoFlow(image, tmap[, result]) -> result