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

Compensate exposure in the specified image.

Positional Arguments

• self: Evision.Detail.ExposureCompensator.t()

• index: int.

  Image index

• corner: Point.

  Image top-left corner

• mask: Evision.Mat.t().

  Image mask

Return

• image: Evision.Mat.t().

  Image to process

Python prototype (for reference only):

apply(index, corner, image, mask) -> image

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

createDefault

Positional Arguments

• type: int

Return

• retval: Evision.Detail.ExposureCompensator.t()

Python prototype (for reference only):

createDefault(type) -> retval

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

feed

Positional Arguments

• self: Evision.Detail.ExposureCompensator.t()

• corners: [Point].

  Source image top-left corners

• images: [Evision.Mat].

  Source images

• masks: [Evision.Mat].

  Image masks to update (second value in pair specifies the value which should be used to detect where image is)

Python prototype (for reference only):

feed(corners, images, masks) -> None

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

getMatGains

Positional Arguments

• self: Evision.Detail.ExposureCompensator.t()

Return

• arg1: [Evision.Mat].

Python prototype (for reference only):

getMatGains([, arg1]) -> arg1

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

getMatGains

Positional Arguments

• self: Evision.Detail.ExposureCompensator.t()

Return

• arg1: [Evision.Mat].

Python prototype (for reference only):

getMatGains([, arg1]) -> arg1

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

getUpdateGain

Positional Arguments

• self: Evision.Detail.ExposureCompensator.t()

Return

• retval: bool

Python prototype (for reference only):

getUpdateGain() -> retval

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

setMatGains

Positional Arguments

• self: Evision.Detail.ExposureCompensator.t()
• arg1: [Evision.Mat]

Python prototype (for reference only):

setMatGains(arg1) -> None

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

setUpdateGain

Positional Arguments

• self: Evision.Detail.ExposureCompensator.t()
• b: bool

Python prototype (for reference only):

setUpdateGain(b) -> None