img-ssim-cli/bin/img-ssim-cli.js

CLI Tool for comparing images using the SSIM algorithm.

#!/usr/bin/env node

"use strict";

var Tilda = require("tilda"),
    imgSsimCli = require(".."),
    imgSSIM = require("img-ssim");

new Tilda(__dirname + "/../package.json", {
    args: [{
        name: "first_image",
        desc: "The first image source."
    }, {
        name: "second_image",
        desc: "The second image source."
    }],
    options: [{
        name: "resize",
        opts: ["r", "resize"],
        desc: "Whether to resize the images to be the same size. Default: not enabled (meaning, the images should have the same number of pixels)",
        type: Boolean,
        default: false
    }, {
        name: "no-size-check",
        opts: ["n", "no-size-check"],
        desc: "Whether to bypass the size check and comparing the images which do *not* have identic sizes. Not enabled by default.",
        type: Boolean,
        default: false
    }, {
        name: "window-size",
        opts: ["s", "window-size"],
        desc: "The images are divided in regions of 8 x 8 pixels, by default. Use this option to provide a different size of the square.",
        type: Number,
        default: 8
    }]
}).main(function (action) {
    imgSSIM(action.args.first_image, action.args.second_image, {
        resize: action.options.resize.value,
        enforceSameSize: !action.options.n.value,
        windowSize: action.options.s.value
    }, function (err, similarity) {
        if (err) console.error(err);else console.log(similarity);
    });
});