ImageResizer

Image resizer allows you to resize all sorts of images really fast, using amazing sharp library.

Resizing an image

The resizeImage function expects configuration object with image (buffer), width, hegiht and quality (optional).

import {ImageResizer} from 'node-mariner'

try {
  const file = fs.readFileSync( ... ) // read to Buffer
  const resizedBuffer = ImageResizer.resizeImage({
    image: file,
    width: 500,
    height: 400,
    quality: 95, // optional (defaults to 90),
    sharpen: { // optional sharpening applied to image
      sigma: 1.0,
      flat: 1.0,
      jagged: 1.0,
    },
    fit: 'inside', // 'inside' | 'outside' | 'cover' (crop)
  })
  // save the resizedBuffer, or upload it
} catch(e) {
  // handle resize error
}

resizeImage Configuration

All keys are mandatory unless stated differently.

key	type	description
width	number	expected maximum image width of resized image
height	number	expected maximum image height of resized image
image	Buffer	actual image Buffer
quality (optional)	number	quality of jpg output, defaults to 90

Reading Exif

Using ImageResizer module, you can also read exif from image files (if available). Generally ImageResizer.exif will return at least width and height. If exif is available, it will be provided too.

import {ImageResizer} from 'node-mariner'


try {
  const fileWExif = fs.readFileSync( ... ) // read to Buffer
  const exif = await ImageResizer.exif(fileWExif);
  console.log(exif)
} catch (e) {
  // handle the error
}