Comments (5)
@franck34
After digging through the source code, I was able to come up with this solution to write the image to a file:
var png = data.getDiffImage();
var imageName = "out.png";
png.pack().pipe(fs.createWriteStream(imageName));
png.on('parsed', function() {
return png.pack().pipe(fs.createWriteStream(imageName));
});
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Same here, but i had to clone another branch because getDiffImage does not exist on master branch.
I did it few hours ago. But curiously branches vanished from github. Or perhaps i'm really tired ??
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Ha. Got it. Was using this fork : https://github.com/nikrolls/node-resemble
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@jkieley this repo does not contain any "getDiffImage" occurence :)
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@jkieley here is what I did and it seems to work:
var fs = require('fs');
var resemble = require('node-resemble');
var img1 = fs.readFileSync('before.png');
var img2 = fs.readFileSync('after.png');
resemble(img1).compareTo(img2).onComplete(function(data){
var png = data.getImageDataUrl();
var base64Data = png.replace(/^data:image\/png;base64,/, "");
fs.writeFile("out.png", base64Data, 'base64', function(err) {
console.log(err); // if any
});
});
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