image-scaler

A JavaScript tool that enlarges and reduces the size of the image.😎

Features

• Reduce image size
• Zoom in picture
• Zoom out image
• Support Node.js(^1.0.3)
• Url that supports incoming local or online pictures

Installing

Using npm:

  $ npm install @jaxon_song/image-scaler

Using cdn:

  <script src="https://unpkg.com/@jaxon_song/image-scaler/dist/bundle.min.js"></script>

Usage

Used in Browser

v1.0.5 or higher

  const imageScaler = require('@jaxon_song/image-scaler')

    imageScaler({
      // Original image url
      imageUrl: [url],
      // width and height have at least one, Can also exist
      width: 150,
      height: 100,
      // A Number between 0 and 1 indicating image quality if the requested type is image/jpeg or image/webp. If this argument is anything else, the default values 0.92 and 0.80 are used for image/jpeg and image/webp respectively. Other arguments are ignored.
      quality: 0.1,
      // A DOMString indicating the image format. The default type is image/jpeg.
      mimeType: 'png'
    }).then( data => {
      // data includes the blob object and url of the adjusted image
      console.log(data)
    })

v1.0.4 or less:

  const imageScaler = require('@jaxon_song/image-scaler')

    imageScaler({
      // Original image url
      imageUrl: [url],
      // How much is the picture width adjusted(px)? The default value is 100.
      scaleTo: 150,
      // A Number between 0 and 1 indicating image quality if the requested type is image/jpeg or image/webp. If this argument is anything else, the default values 0.92 and 0.80 are used for image/jpeg and image/webp respectively. Other arguments are ignored.
      quality: 0.1,
      // A DOMString indicating the image format. The default type is image/jpeg.
      mimeType: 'png'
    }).then( data => {
      // data includes the blob object and url of the adjusted image
      console.log(data)
    })

Used in Node.js

v1.0.5 or higher:

  const imageScaler = require('@jaxon_song/image-scaler')
  /**
   * resolved a Buffer in Node.js
  */
  imageScaler({
    imageUrl: [url], // Can be the path or link to the image file
    width: 150
  }).then(
    buffer => {
      console.log(buffer)
    }
  )

v1.0.4 or less:

  const imageScaler = require('@jaxon_song/image-scaler')
  /**
   * resolved a Buffer in Node.js
  */
  imageScaler({
    imageUrl: [url], // Can be the path or link to the image file
    scaleTo: 150
  }).then(
    buffer => {
      console.log(buffer)
    }
  )

Change Log

v1.0.5 (2019/08/26 10:20 +00:00)

• Change parameter scaleTo to width
• add paramer height
• Support input width or height or both

License

MIT