imagemin-mozjpeg
Install
$ npm install imagemin-mozjpeg
Usage
import imagemin from 'imagemin';
import imageminMozjpeg from 'imagemin-mozjpeg';
(async () => {
await imagemin(['images/*.jpg'], {
destination: 'build/images',
plugins: [
imageminMozjpeg()
]
});
console.log('Images optimized');
})();
API
imageminMozjpeg(options?)(buffer)
Returns a Promise<Buffer>.
options
Type: object
quality
Type: number
Compression quality, in range 0 (worst) to 100 (perfect).
progressive
Type: boolean
Default: true
false creates baseline JPEG file.
targa
Type: boolean
Default: false
Input file is Targa format (usually not needed).
revert
Type: boolean
Default: false
Revert to standard defaults instead of mozjpeg defaults.
fastCrush
Type: boolean
Default: false
Disable progressive scan optimization.
dcScanOpt
Type: number
Default: 1
Set DC scan optimization mode.
0One scan for all components1One scan per component2Optimize between one scan for all components and one scan for 1st component plus one scan for remaining components
trellis
Type: boolean
Default: true
trellisDC
Type: boolean
Default: true
Trellis optimization of DC coefficients.
tune
Type: string
Default: hvs-psnr
Set Trellis optimization method. Available methods: psnr, hvs-psnr, ssim, ms-ssim
overshoot
Type: boolean
Default: true
Black-on-white deringing via overshoot.
arithmetic
Type: boolean
Default: false
Use arithmetic coding.
dct
Type: string
Default: int
Set DCT method:
intUse integer DCTfastUse fast integer DCT (less accurate)floatUse floating-point DCT
quantBaseline
Type: boolean
Default: false
Use 8-bit quantization table entries for baseline JPEG compatibility.
quantTable
Type: number
Use predefined quantization table.
0JPEG Annex K1Flat2Custom, tuned for MS-SSIM3ImageMagick table by N. Robidoux4Custom, tuned for PSNR-HVS5Table from paper by Klein, Silverstein and Carney
smooth
Type: number
Set the strength of smooth dithered input. (1...100)
maxMemory
Type: number
Set the maximum memory to use in kilobytes.
sample
Type: string[]
Set component sampling factors. Each item should be in the format HxV, for example 2x1.
buffer
Type: buffer
Buffer to optimize.