0.0.13 • Published 8 years ago
png-compare v0.0.13
PNG-COMPARE
Description
This module uses imagemagick's compare command to compare two identically sized png images.
(baseline, comparator, options*) ⇒ variance
Kind: function
Parameters
| Param | Type | Description |
|---|---|---|
| baseline | String | the location of the baseline png you want to compare against |
| comparator | String | the location of the comparator png you want to compare to the baseline |
Returns
| Name | Type | Description |
|---|---|---|
| variance | Number | the percentage of pixels that are different on the comparator png when compared to the baseline |
Installation
npm install png-compare
Pre-requisites
Node
This module is tested on Node versions 4.x, 5.x, 6.x and 7.x via Travis-CI. The status of these tests can be seen on the module's travis page.
Imagemagick
MacOS
brew install imagemagick
Ubuntu
sudo apt-get install imagemagick