Class GrayImageU32

A decoded grayscale image. Primarily used in more advanced image processing pipelines. Laymen users are probably looking for the 'Image' type.

Each pixel is a 32-bit unsigned integer, primarily used for representing labeled images/regions.

Hierarchy

GrayImageU32

Index

Constructors

constructor

Properties

handle

Methods

Constructors

constructor

new GrayImageU32(x: GrayImageU32): GrayImageU32

- Defined in index.ts:783
Treat this as private unless you’re using the lower level sys module.

Parameters
- x: GrayImageU32
Returns GrayImageU32

Properties

Private handle

handle: GrayImageU32

Methods

map_luma

map_luma(f: function): Promise<GrayImageU32>

- Defined in index.ts:799
Transforms the input image.

Parameters
- f: function
  - - (x: number, y: number, px: number): number
    - Parameters
      - x: number
      - y: number
      - px: number
      Returns number
Returns Promise<GrayImageU32>

reduce_luma

reduce_luma<T>(initial_value: T, f: function): Promise<T>

- Defined in index.ts:808
Sometimes called “fold”, useful for e.g. summing specific pixel values.

Type parameters
- T
Parameters
- initial_value: T
- f: function
  - - (accumulator: T, x: number, y: number, px: number): T
    - Parameters
      - accumulator: T
      - x: number
      - y: number
      - px: number
      Returns T
Returns Promise<T>

to_image

to_image(): Promise<Image>

- Defined in index.ts:821
Convert to the Image type. Labeled regions are assigned some “pretty” color value useful for debugging.

Returns Promise<Image>

Generated using TypeDoc