Image is not defined about resemble.js HOT 5 CLOSED

You have to have Cairo installed for image comparison in node. I've looked for one-off solutions written in pure javascript and it looks like they don't exist.

If you try to install Cairo on Mac, take a look at Homebrew/legacy-homebrew#14123 (comment) in case you get some pathing issues from brew.

For using resemble in node, see https://github.com/kpdecker/node-resemble.

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ResembleJS is for "In-browser" image comparison, but that's not to say it can't be tweaked for NodeJS. https://github.com/kpdecker/node-resemble Looks like it might be a good solution for your needs.

Let us know if you get something working.

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@jamescryer @Droogans
Thanks for the link and informations.
node-resemble seems to be working fine .

Though not an issue But i need to eliminate some dynamic elements from comparison .Is it possible in resemble js to eliminate dynamic parts that changes often from baseline image .
like: https://github.com/webdriverio/webdrivercss

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Resemble just does image comparison. Presumably you need to use NightwatchJS functionality to hide the dynamic UI before taking the screenshot for comparison.

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That's not necessarily true. There's https://github.com/EyalAr/lwip/, which would do this after you take a screenshot! @iam404 I'm working on a library that uses Protractor and Mocha that will be able to support that soon.

Depending on your tooling, you may be able to use it. Admittedly, it's a fairly specific toolset to solve a pretty specific problem for myself. If you can't use it, at least you'll have source code that you can use for your own project.

Here's the project: https://github.com/rackerlabs/snappit-mocha-protractor

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