Build a face detection app usig AlchemyAPI service on Bluemix

README.md

This lab will show you how to build a Bluemix application that uses the Alchemy Vision service analyzing the contents of an image and extract features from it. The Face Detection service is able to identify multiple faces within the image, and determine their gender and age with a confidence score, and identify celebrities.

flow.json

[{"id":"8da9511c.20566","type":"change","z":"bfafde67.102e78","name":"Extract image URL","rules":[{"t":"set","p":"payload","pt":"msg","to":"payload.imageurl","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":348,"y":255.5,"wires":[["eae444de.e7596"]]},{"id":"478112c5.2ebaac","type":"switch","z":"bfafde67.102e78","name":"Check image url","property":"payload.imageurl","propertyType":"msg","rules":[{"t":"null"},{"t":"else"}],"checkall":"true","outputs":2,"x":232,"y":183.5,"wires":[["dab93b42.b803b8"],["8da9511c.20566"]]},{"id":"eae444de.e7596","type":"alchemy-image-analysis","z":"bfafde67.102e78","name":"","apikey":"__PWRD__","image-feature":"imageFaces","x":565,"y":325,"wires":[["5c2b082e.7f1a4"]]},{"id":"ba4093d0.b572d8","type":"http in","z":"bfafde67.102e78","name":"","url":"/people","method":"get","swaggerDoc":"","x":108,"y":116.5,"wires":[["478112c5.2ebaac"]]},{"id":"dab93b42.b803b8","type":"template","z":"bfafde67.102e78","name":"Prompt images","field":"payload","fieldType":"msg","format":"handlebars","syntax":"mustache","template":"<h1>Welcome to my Face Detection app</h1>\n<H2>Recognize anyone? (Is he wearing the same dark blue jacket again?)</H2>\n<form  action=\"{{req._parsedUrl.pathname}}\">\n    <img src=\"http://asbarez.com/wp-content/uploads/2016/02/ibmwatson.jpg\" height='200'/>\n    <img src=\"http://www.awaken.com/wp-content/uploads/2015/05/forbes.jpg\" height='200'/>\n    <img src=\"https://www.commerce.gov/sites/commerce.gov/files/styles/scale_250w/public/media/images/profile/elizabethholmes.jpg?itok=DHmvdC-1\" height='200'/>\n        <br/>Right-click one of the above images and select Copy image location and paste the URL in the box below.<br>Do an image search for faces, try multiple faces. After you click on an image, to the right it usually says \"View image\" click that to get the URL.<br/>\n    <br>Image URL: <input type=\"text\" name=\"imageurl\"/>\n    <input type=\"submit\" value=\"Analyze\"/>\n</form>","x":544,"y":124.5,"wires":[["38a9423e.12c4be"]]},{"id":"5c2b082e.7f1a4","type":"template","z":"bfafde67.102e78","name":"Report faces","field":"payload","fieldType":"msg","format":"handlebars","syntax":"mustache","template":"<h1>Alchemy Image Analysis</h1>\n    <p>Analyzed image: {{payload}}<br/><img id=\"alchemy_image\" src=\"{{payload}}\" height=\"200\"/></p>\n    {{^result}}\n        <P>No Face detected</P>\n    {{/result}}\n    <table border='1'>\n        <thead><tr><th>Age Range</th><th>Confidence</th><th>Gender</th><th>Confidence</th><th>Name</th></tr></thead>\n        {{#result}}<tr>\n            <td><b>{{age.ageRange}}</b></td><td><i>{{age.score}}</i></td>\n            <td>{{gender.gender}}</td><td>{{gender.score}}</td>\n            {{#identity}}<td>{{identity.name}} ({{identity.score}})</td>{{/identity}}\n        </tr>{{/result}}\n    </table>\n    <form  action=\"{{req._parsedUrl.pathname}}\">\n        <br><input type=\"submit\" value=\"Try again or go back to the home page\"/>\n    </form>","x":738,"y":237.5,"wires":[["38a9423e.12c4be"]]},{"id":"38a9423e.12c4be","type":"http response","z":"bfafde67.102e78","name":"","x":859,"y":127,"wires":[]}]