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@gumlet/gif-resize

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@gumlet/gif-resize

Nodejs plugin to resize GIFs


Version published
Maintainers
1
Weekly downloads
1,197
decreased by-4.62%

Weekly downloads

Readme

Source

gif-resize

Build Status

Nodejs plugin for Gifsicle

Install

$ npm install @gumlet/gif-resize

Usage

const gifResize = require('@gumlet/gif-resize');
const fs = require("fs");

const buf = fs.readFileSync("avocado.gif");
gifResize({
	width: 200
})(buf).then(data => {
	console.log("'data' contains processed GIF.");
});

API

gifResize([options])(buffer)

Returns a promise for a buffer.

options

Type: Object

width

Type: number

Resize GIF to given width in pixels. It maintains aspect ratio.

height

Type: number

Resize GIF to given height in pixels. It maintains aspect ratio.

stretch

Type: boolean

If this is set, and width and height both are provided, the GIF will be resized such that it exactly matches the dimensions provided. It won't match the aspect ratio.

interlaced

Type: boolean
Default: false

Interlace gif for progressive rendering.

timeout

Type: number
Default: 0

This is process timeout in milliseconds. If set to positive number, it will throw timeout error after that many milliseconds.

optimizationLevel

Type: number
Default: 2

Select an optimization level between 1 and 3.

The optimization level determines how much optimization is done; higher levels take longer, but may have better results.

  1. Stores only the changed portion of each image.
  2. Also uses transparency to shrink the file further.
  3. Try several optimization methods (usually slower, sometimes better results)
colors

Type: number

Reduce the number of distinct colors in each output GIF to num or less. Num must be between 2 and 256.

resize_method

Type: string Default: lanczos3

Set the method used to resize images. The sample method runs very quickly, but when shrinking images, it produces noisy results. The mix method is somewhat slower, but produces better-looking results. The default method is currently mix.

Gifsicle also supports more complex resamplers, including Catmull-Rom cubic resampling (catrom), the Mitchell-Netravali filter (mitchell), a 2-lobed Lanczos filter (lanczos2), and a 3-lobed Lanczos filter (lanczos3). These filters are slower still, but can give sharper, better results.

gamma

Type: number

Set the gamma correction to gamma, which can be a real number or ‘srgb’.

crop

Type: array

Crop box in format [left, top, width, height].

flip_h

Type: boolean

Flips GIF horizontally.

flip_v

Type: boolean

Flips GIF vertically.

rotate

Type: number

Rotates GIF image. Valid values are 90, 180 and 270. All other values are silently ignored.

buffer

Type: Buffer

Buffer to optimize / resize.

License

MIT © Gumlet

Keywords

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Last updated on 16 Jun 2021

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