img-ssim

Get the structural similarity between two images.

:cloud: Installation

# Using npm
npm install --save img-ssim

# Using yarn
yarn add img-ssim

:clipboard: Example

const imgSSIM = require("img-ssim");

imgSSIM(
    "https://octodex.github.com/images/original.png"
  , "https://octodex.github.com/images/class-act.png"
  , (err, similarity) => {
    console.log(err || similarity);
    // => 0.7683075604309328
});

imgSSIM(
    "https://octodex.github.com/images/original.png"
  , "https://ionicabizau.net/images/logo.png"
  , { enforceSameSize: false, resize: true }
  , (err, similarity) => {
    console.log(err || similarity);
    // => 0.2631629323319616
});

:question: Get Help

There are few ways to get help:

1. Please post questions on Stack Overflow. You can open issues with questions, as long you add a link to your Stack Overflow question.
2. For bug reports and feature requests, open issues. :bug:
3. For direct and quick help, you can use Codementor. :rocket:

:memo: Documentation

imgSsim(source, target, options, cb)

Get the structural similarity between two images.

The ssim result will be a value between 0 and 1. The more similar the images are, the higher the value will be.

Params

• String source: The first image path (local path or url).
• String target: The second image path (local path or url).
• Object options: An object containing the following fields:
• windowSize (Number): The number of pixels of the image splits (default: 8).
• enforceSameSize (Boolean): By default, the images should have the same size. If this option is false, this will force the images to be compared, even if they have different sizes.
• resize (Boolean): If the images have different sizes, they will be resized if this option is true. Default is false.
• Function cb: The callback function.

:yum: How to contribute

Have an idea? Found a bug? See how to contribute.

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:dizzy: Where is this library used?

If you are using this library in one of your projects, add it in this list. :sparkles:

• img-ssim-cli

:scroll: License

MIT © Ionică Bizău