@itkyk/minify-images

install

$ npm i -D @itkyk/minify-images

CLI

minify -i ./inputDir/to/path -o outputDir/to/path

Options

key	description
-i, --input	The path of the directory containing the images you want to compress.
-o, --output	Directory path to export the compressed image
-m, --mozjpeg	compression settings for mozjpeg
-ox, --oxipng	compression settings for oxipng
-q, --quant	compression settings for quant

API

import Minify, {ImageMinOptionInterface} from "@itkyk/minify-images";

const options: ImageMinOptionInterface = {
  inputPath: "inputDir/to/path",
  outputPath: "outputDir/to/Path",
  encodeOptions: {
    mozjpeg: {},
    oxipng: {},
    quant: {}
  }
}

new Minify(options);

Options

key	description
inputPath	The path of the directory containing the images you want to compress.
outputPath	Directory path to export the compressed image
mozjpeg	compression settings for mozjpeg
oxipng	compression settings for oxipng
quant	compression settings for quant

DefaultOption

moxjpeg

const defaultMozJpegOpts = {
  quality: 75,
  baseline: false,
  arithmetic: false,
  progressive: true,
  optimize_coding: true,
  smoothing: 0,
  color_space: 3,
  quant_table: 3,
  trellis_multipass: false,
  trellis_opt_zero: false,
  trellis_opt_table: false,
  trellis_loops: 1,
  auto_subsample: true,
  chroma_subsample: 2,
  separate_chroma_quality: false,
  chroma_quality: 75,
};

oxipng

export const defaultOxipngOpts = {
  level: 3,
  interlace: false,
};

quant

const defaultQuantOpts = {
  enabled: true,
  zx: 0,
  maxNumColors: 256,
  dither: 1,
};

svgo

const defaultSVGOOpts = [
  {
    name: "removeAttrs",
    params: {
      attrs: "data-name",
    },
  },
];

Attention

The moxjpeg and oxipng options merge with the default options, but svgo drowns out the default options and overwrites them.

const options = {
  encodeOptions: {
    mozjpeg: {}, // The default options apply.
    oxipng: {}, // The default options apply.
    svgo: [] // The default options are overwritten on the empty array.
  }
}