large-imagedata

Utility to get imageData of large size image not able to treat with canvas for pixel size limitation.

Installation

$ npm install @kaorun/large-imagedata

Import

import { LargeImageData } from @kaorun/large-imagedata;

Usage

constructor( size = 4096 )

Argument

• size - canvas width and height to split image.

getImageData( value )

Get imageData of HTMLImageElement or ImageBitmap.

Argument

• value - HTMLImageElement or ImageBitmap to get imageData.

Return

• imageData - return HTMLImageElement.

  • width - source image width.
  • height - source image height.
  • data - rgba data array.

loadToImageElement( path )

Load image file to HTMLImageElement. Recommended.

Argument

• path - path to image file.

Return

• promise - resolve HTMLImageElement.

loadToImageBitmap( path )

Load image file to ImageBitmap.

Argument

• path - path to image file.

Return

• promise - resolve ImageBitmap.

License

MIT