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

Builds the projection maps according to the given camera data.

Positional Arguments

• self: Evision.PyRotationWarper.t()

• src_size: Size.

  Source image size

• k: Evision.Mat.

  Camera intrinsic parameters

• r: Evision.Mat.

  Camera rotation matrix

Return

• retval: Rect

• xmap: Evision.Mat.t().

  Projection map for the x axis

• ymap: Evision.Mat.t().

  Projection map for the y axis

@return Projected image minimum bounding box

Python prototype (for reference only):

buildMaps(src_size, K, R[, xmap[, ymap]]) -> retval, xmap, ymap

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

Builds the projection maps according to the given camera data.

Positional Arguments

• self: Evision.PyRotationWarper.t()

• src_size: Size.

  Source image size

• k: Evision.Mat.

  Camera intrinsic parameters

• r: Evision.Mat.

  Camera rotation matrix

Return

• retval: Rect

• xmap: Evision.Mat.t().

  Projection map for the x axis

• ymap: Evision.Mat.t().

  Projection map for the y axis

@return Projected image minimum bounding box

Python prototype (for reference only):

buildMaps(src_size, K, R[, xmap[, ymap]]) -> retval, xmap, ymap

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

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

getScale

Positional Arguments

• self: Evision.PyRotationWarper.t()

Return

• retval: float

Python prototype (for reference only):

getScale() -> retval

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

PyRotationWarper

Return

• self: Evision.PyRotationWarper.t()

Python prototype (for reference only):

PyRotationWarper() -> <PyRotationWarper object>

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

PyRotationWarper

Positional Arguments

• type: String
• scale: float

Return

• self: Evision.PyRotationWarper.t()

Python prototype (for reference only):

PyRotationWarper(type, scale) -> <PyRotationWarper object>

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

setScale

Positional Arguments

• self: Evision.PyRotationWarper.t()
• arg1: float

Python prototype (for reference only):

setScale(arg1) -> None

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

Projects the image.

Positional Arguments

• self: Evision.PyRotationWarper.t()

• src: Evision.Mat.

  Source image

• k: Evision.Mat.

  Camera intrinsic parameters

• r: Evision.Mat.

  Camera rotation matrix

• interp_mode: integer().

  Interpolation mode

• border_mode: integer().

  Border extrapolation mode

Return

• retval: Point

• dst: Evision.Mat.t().

  Projected image

@return Project image top-left corner

Python prototype (for reference only):

warp(src, K, R, interp_mode, border_mode[, dst]) -> retval, dst

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

Projects the image.

Positional Arguments

• self: Evision.PyRotationWarper.t()

• src: Evision.Mat.

  Source image

• k: Evision.Mat.

  Camera intrinsic parameters

• r: Evision.Mat.

  Camera rotation matrix

• interp_mode: integer().

  Interpolation mode

• border_mode: integer().

  Border extrapolation mode

Return

• retval: Point

• dst: Evision.Mat.t().

  Projected image

@return Project image top-left corner

Python prototype (for reference only):

warp(src, K, R, interp_mode, border_mode[, dst]) -> retval, dst

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

Projects the image backward.

Positional Arguments

• self: Evision.PyRotationWarper.t()

• src: Evision.Mat.

  Projected image

• k: Evision.Mat.

  Camera intrinsic parameters

• r: Evision.Mat.

  Camera rotation matrix

• interp_mode: integer().

  Interpolation mode

• border_mode: integer().

  Border extrapolation mode

• dst_size: Size.

  Backward-projected image size

Return

• dst: Evision.Mat.t().

  Backward-projected image

Python prototype (for reference only):

warpBackward(src, K, R, interp_mode, border_mode, dst_size[, dst]) -> dst

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

Projects the image backward.

Positional Arguments

• self: Evision.PyRotationWarper.t()

• src: Evision.Mat.

  Projected image

• k: Evision.Mat.

  Camera intrinsic parameters

• r: Evision.Mat.

  Camera rotation matrix

• interp_mode: integer().

  Interpolation mode

• border_mode: integer().

  Border extrapolation mode

• dst_size: Size.

  Backward-projected image size

Return

• dst: Evision.Mat.t().

  Backward-projected image

Python prototype (for reference only):

warpBackward(src, K, R, interp_mode, border_mode, dst_size[, dst]) -> dst

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

Projects the image point.

Positional Arguments

• self: Evision.PyRotationWarper.t()

• pt: Point2f.

  Source point

• k: Evision.Mat.

  Camera intrinsic parameters

• r: Evision.Mat.

  Camera rotation matrix

Return

• retval: Point2f

@return Projected point

Python prototype (for reference only):

warpPoint(pt, K, R) -> retval

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

warpPointBackward

Positional Arguments

• self: Evision.PyRotationWarper.t()
• pt: Point2f
• k: Evision.Mat
• r: Evision.Mat

Return

• retval: Point2f

Python prototype (for reference only):

warpPointBackward(pt, K, R) -> retval

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

warpRoi

Positional Arguments

• self: Evision.PyRotationWarper.t()

• src_size: Size.

  Source image bounding box

• k: Evision.Mat.

  Camera intrinsic parameters

• r: Evision.Mat.

  Camera rotation matrix

Return

• retval: Rect

@return Projected image minimum bounding box

Python prototype (for reference only):

warpRoi(src_size, K, R) -> retval