View Source Evision.StructuredLight.StructuredLightPattern (Evision v0.2.9)

Summary

Types

t()

Type that represents an StructuredLight.StructuredLightPattern struct.

Functions

Clears the algorithm state

Decodes the structured light pattern, generating a disparity map

Decodes the structured light pattern, generating a disparity map

Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read

Generates the structured light pattern to project.

Generates the structured light pattern to project.

Reads algorithm parameters from a file storage

Stores algorithm parameters in a file storage

Types

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

Type that represents an StructuredLight.StructuredLightPattern struct.

  • ref. reference()

    The underlying erlang resource variable.

Functions

@spec clear(Keyword.t()) :: any() | {:error, String.t()}
@spec clear(t()) :: t() | {:error, String.t()}

Clears the algorithm state

Positional Arguments
  • self: Evision.StructuredLight.StructuredLightPattern.t()

Python prototype (for reference only):

clear() -> None
@spec decode(Keyword.t()) :: any() | {:error, String.t()}
Link to this function

decode(self, patternImages)

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@spec decode(t(), [[Evision.Mat.maybe_mat_in()]]) ::
  Evision.Mat.t() | false | {:error, String.t()}

Decodes the structured light pattern, generating a disparity map

Positional Arguments
  • self: Evision.StructuredLight.StructuredLightPattern.t()

  • patternImages: [[Evision.Mat]].

    The acquired pattern images to decode (vector<vector<Mat>>), loaded as grayscale and previously rectified.

Keyword Arguments
  • blackImages: [Evision.Mat].

    The all-black images needed for shadowMasks computation.

  • whiteImages: [Evision.Mat].

    The all-white images needed for shadowMasks computation.

  • flags: integer().

    Flags setting decoding algorithms. Default: DECODE_3D_UNDERWORLD.

Return
  • retval: bool

  • disparityMap: Evision.Mat.t().

    The decoding result: a CV_64F Mat at image resolution, storing the computed disparity map.

Note: All the images must be at the same resolution.

Python prototype (for reference only):

decode(patternImages[, disparityMap[, blackImages[, whiteImages[, flags]]]]) -> retval, disparityMap
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decode(self, patternImages, opts)

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@spec decode(
  t(),
  [[Evision.Mat.maybe_mat_in()]],
  [blackImages: term(), flags: term(), whiteImages: term()] | nil
) :: Evision.Mat.t() | false | {:error, String.t()}

Decodes the structured light pattern, generating a disparity map

Positional Arguments
  • self: Evision.StructuredLight.StructuredLightPattern.t()

  • patternImages: [[Evision.Mat]].

    The acquired pattern images to decode (vector<vector<Mat>>), loaded as grayscale and previously rectified.

Keyword Arguments
  • blackImages: [Evision.Mat].

    The all-black images needed for shadowMasks computation.

  • whiteImages: [Evision.Mat].

    The all-white images needed for shadowMasks computation.

  • flags: integer().

    Flags setting decoding algorithms. Default: DECODE_3D_UNDERWORLD.

Return
  • retval: bool

  • disparityMap: Evision.Mat.t().

    The decoding result: a CV_64F Mat at image resolution, storing the computed disparity map.

Note: All the images must be at the same resolution.

Python prototype (for reference only):

decode(patternImages[, disparityMap[, blackImages[, whiteImages[, flags]]]]) -> retval, disparityMap
@spec empty(Keyword.t()) :: any() | {:error, String.t()}
@spec empty(t()) :: boolean() | {:error, String.t()}

Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read

Positional Arguments
  • self: Evision.StructuredLight.StructuredLightPattern.t()
Return
  • retval: bool

Python prototype (for reference only):

empty() -> retval
@spec generate(Keyword.t()) :: any() | {:error, String.t()}
@spec generate(t()) :: [Evision.Mat.t()] | false | {:error, String.t()}

Generates the structured light pattern to project.

Positional Arguments
  • self: Evision.StructuredLight.StructuredLightPattern.t()
Return
  • retval: bool

  • patternImages: [Evision.Mat].

    The generated pattern: a vector<Mat>, in which each image is a CV_8U Mat at projector's resolution.

Python prototype (for reference only):

generate([, patternImages]) -> retval, patternImages
@spec generate(t(), [{atom(), term()}, ...] | nil) ::
  [Evision.Mat.t()] | false | {:error, String.t()}

Generates the structured light pattern to project.

Positional Arguments
  • self: Evision.StructuredLight.StructuredLightPattern.t()
Return
  • retval: bool

  • patternImages: [Evision.Mat].

    The generated pattern: a vector<Mat>, in which each image is a CV_8U Mat at projector's resolution.

Python prototype (for reference only):

generate([, patternImages]) -> retval, patternImages
Link to this function

getDefaultName(named_args)

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@spec getDefaultName(Keyword.t()) :: any() | {:error, String.t()}
@spec getDefaultName(t()) :: binary() | {:error, String.t()}

getDefaultName

Positional Arguments
  • self: Evision.StructuredLight.StructuredLightPattern.t()
Return

Returns the algorithm string identifier. This string is used as top level xml/yml node tag when the object is saved to a file or string.

Python prototype (for reference only):

getDefaultName() -> retval
@spec read(Keyword.t()) :: any() | {:error, String.t()}
@spec read(t(), Evision.FileNode.t()) :: t() | {:error, String.t()}

Reads algorithm parameters from a file storage

Positional Arguments

Python prototype (for reference only):

read(fn) -> None
@spec save(Keyword.t()) :: any() | {:error, String.t()}
@spec save(t(), binary()) :: t() | {:error, String.t()}

save

Positional Arguments
  • self: Evision.StructuredLight.StructuredLightPattern.t()
  • filename: String

Saves the algorithm to a file. In order to make this method work, the derived class must implement Algorithm::write(FileStorage& fs).

Python prototype (for reference only):

save(filename) -> None
@spec write(Keyword.t()) :: any() | {:error, String.t()}
@spec write(t(), Evision.FileStorage.t()) :: t() | {:error, String.t()}

Stores algorithm parameters in a file storage

Positional Arguments

Python prototype (for reference only):

write(fs) -> None
@spec write(t(), Evision.FileStorage.t(), binary()) :: t() | {:error, String.t()}

write

Positional Arguments

Has overloading in C++

Python prototype (for reference only):

write(fs, name) -> None