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

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

Clears the algorithm state

Positional Arguments

• self: Evision.Rapid.OLSTracker.t()

Python prototype (for reference only):

clear() -> None

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

@spec clearState(t()) :: t() | {:error, String.t()}

clearState

Positional Arguments

• self: Evision.Rapid.OLSTracker.t()

Python prototype (for reference only):

clearState() -> None

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

compute

Positional Arguments

• self: Evision.Rapid.OLSTracker.t()
• img: Evision.Mat
• num: integer()
• len: integer()
• k: Evision.Mat

Keyword Arguments

• termcrit: TermCriteria.

Return

• retval: float
• rvec: Evision.Mat.t()
• tvec: Evision.Mat.t()

Python prototype (for reference only):

compute(img, num, len, K, rvec, tvec[, termcrit]) -> retval, rvec, tvec

@spec compute(
  t(),
  Evision.Mat.maybe_mat_in(),
  integer(),
  integer(),
  Evision.Mat.maybe_mat_in(),
  Evision.Mat.maybe_mat_in(),
  Evision.Mat.maybe_mat_in(),
  [{:termcrit, term()}] | nil
) :: {number(), Evision.Mat.t(), Evision.Mat.t()} | {:error, String.t()}

compute

Positional Arguments

• self: Evision.Rapid.OLSTracker.t()
• img: Evision.Mat
• num: integer()
• len: integer()
• k: Evision.Mat

Keyword Arguments

• termcrit: TermCriteria.

Return

• retval: float
• rvec: Evision.Mat.t()
• tvec: Evision.Mat.t()

Python prototype (for reference only):

compute(img, num, len, K, rvec, tvec[, termcrit]) -> retval, rvec, tvec

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

create

Positional Arguments

• pts3d: Evision.Mat
• tris: Evision.Mat

Keyword Arguments

• histBins: integer().
• sobelThesh: uchar.

Return

• retval: OLSTracker

Python prototype (for reference only):

create(pts3d, tris[, histBins[, sobelThesh]]) -> retval

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

create

Positional Arguments

• pts3d: Evision.Mat
• tris: Evision.Mat

Keyword Arguments

• histBins: integer().
• sobelThesh: uchar.

Return

• retval: OLSTracker

Python prototype (for reference only):

create(pts3d, tris[, histBins[, sobelThesh]]) -> retval

@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.Rapid.OLSTracker.t()

Return

• retval: bool

Python prototype (for reference only):

empty() -> retval

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

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

getDefaultName

Positional Arguments

• self: Evision.Rapid.OLSTracker.t()

Return

• retval: String

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(t(), Evision.FileNode.t()) :: t() | {:error, String.t()}

Reads algorithm parameters from a file storage

Positional Arguments

• self: Evision.Rapid.OLSTracker.t()
• func: Evision.FileNode

Python prototype (for reference only):

read(fn) -> None

@spec save(t(), binary()) :: t() | {:error, String.t()}

save

Positional Arguments

• self: Evision.Rapid.OLSTracker.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(t(), Evision.FileStorage.t()) :: t() | {:error, String.t()}

Stores algorithm parameters in a file storage

Positional Arguments

• self: Evision.Rapid.OLSTracker.t()
• fs: Evision.FileStorage

Python prototype (for reference only):

write(fs) -> None

@spec write(t(), Evision.FileStorage.t(), binary()) :: t() | {:error, String.t()}

write

Positional Arguments

• self: Evision.Rapid.OLSTracker.t()
• fs: Evision.FileStorage
• name: String

Has overloading in C++

Python prototype (for reference only):

write(fs, name) -> None