#!/usr/bin/env node
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'use strict';
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var PNG = require('pngjs').PNG,
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fs = require('fs'),
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match = require('../.');
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if (process.argv.length < 5) {
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console.log('Usage: imagematch image1.png image2.png output.png [threshold=0.005] [includeAA=false]');
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return;
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}
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var threshold = isNaN(+process.argv[5]) ? undefined : +process.argv[5],
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includeAA = process.argv[6] === 'true';
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var img1 = fs.createReadStream(process.argv[2]).pipe(new PNG()).on('parsed', doneReading);
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var img2 = fs.createReadStream(process.argv[3]).pipe(new PNG()).on('parsed', doneReading);
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function doneReading() {
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if (!img1.data || !img2.data) return;
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var diff = new PNG({width: img1.width, height: img1.height});
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console.time('match');
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var diffs = match(img1.data, img2.data, diff.data, diff.width, diff.height, {
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threshold: threshold,
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includeAA: includeAA
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});
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console.timeEnd('match');
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diff.pack().pipe(fs.createWriteStream(process.argv[4]));
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console.log('different pixels: ' + diffs);
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console.log('error: ' + (Math.round(100 * 100 * diffs / (diff.width * diff.height)) / 100) + '%');
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}
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