bower install ng-cropper

<link href="client/bower_components/ngCropper/dist/ngCropper.all.css" rel="stylesheet">
<script src="client/bower_components/ngCropper/dist/ngCropper.all.js"></script>

var app = angular.module('app', ['ngCropper']);

app.controller('Main', function(Cropper) {
    ...
});

<img src="image.jpg"
     ng-cropper
     ng-cropper-options="options"
     ng-cropper-show="'show.cropper'"
     ng-cropper-hide="'hide.cropper'">

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