package bimage

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in-package search v0.2.0

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Convolution kernels

type t = float array array

val v : rows:int -> cols:int -> t

v ~rows ~cols makes a new Kernel with the given dimensions

val rows : t -> int

Returns the number of rows in a kernel

val cols : t -> int

Returns the number of columns in a kernel

val combine : (float -> float -> float) -> t -> t -> t

Joins two kernels using the given operation

val of_array : ?norm:bool -> float array array -> t

Create a kernel from an existing 2-dimensional float array. When norm is true, the kernel will be normalized

val to_array : t -> float array array

Convert a kernel to a 2-dimensional float array

val get : t -> int -> int -> float

get kernel y x gets the value at (x, y)

val set : t -> int -> int -> float -> unit

set kernel y x v sets the value at (x, y)

val sum : t -> float

Get the sum of each value of a kernel

val normalize : t -> t

normalize kernel returns a kernel where each element has been divided by the sum of all elements

val sobel_x : t

Sobel kernel in the X direction onlu

val sobel_y : t

Sobel kernel in the Y direction only

val gaussian : ?std:float -> int -> t

gassian n generates a new nxn gaussian kernel

module Infix : sig ... end