Add Cloud Vision text detection sample.

Author: jmdobry

README.md

@@ -117,6 +117,7 @@ __Other Examples__
 - Face detection - [Source code][vision_1] | [Documentation][vision_2]
 - Label detection - [Source code][vision_3] | [Documentation][vision_4]
 - Landmark detection - [Source code][vision_5] | [Documentation][vision_6]
+- Text detection - [Source code][vision_7] | [Documentation][vision_8]
 
 ## Google Prediction API
 
@@ -328,6 +329,8 @@ See [LICENSE](https://github.com/GoogleCloudPlatform/nodejs-docs-samples/blob/ma
 [vision_4]: https://cloud.google.com/vision/docs/label-tutorial
 [vision_5]: https://github.com/GoogleCloudPlatform/nodejs-docs-samples/blob/master/vision/landmarkDetection.js
 [vision_6]: https://cloud.google.com/vision/docs/landmark-tutorial
+[vision_7]: https://github.com/GoogleCloudPlatform/nodejs-docs-samples/blob/master/vision/textDetection.js
+[vision_8]: https://cloud.google.com/vision/docs/text-tutorial
 
 [predictionapi_1]: https://github.com/GoogleCloudPlatform/nodejs-docs-samples/blob/master/prediction/hostedmodels.js
 [predictionapi_2]: https://cloud.google.com/prediction/docs/developer-guide#predictionfromappengine

test/vision/textDetection.test.js

@@ -0,0 +1,42 @@
+// Copyright 2016, Google, Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+'use strict';
+
+var test = require('ava');
+var path = require('path');
+var inputDir = path.resolve('../../vision/resources');
+var textDetectionSample = require('../../vision/textDetection');
+
+test.cb('should detect texts', function (t) {
+ textDetectionSample.main(
+ inputDir,
+ function (err, textResponse) {
+ t.ifError(err);
+ t.ok(Object.keys(textResponse).length > 0);
+ t.end();
+ }
+ );
+});
+
+test.cb('should lookup words', function (t) {
+ textDetectionSample.lookup(
+ ['the', 'sunbeams', 'in'],
+ function (err, hits) {
+ t.ifError(err);
+ t.ok(hits.length > 0);
+ t.ok(hits[0].length > 0);
+ t.end();
+ }
+ );
+});

vision/README.md

@@ -40,3 +40,10 @@ Execute the sample:
 Execute the sample:
 
  node landmarkDetection "https://cloud-samples-tests.storage.googleapis.com/vision/water.jpg"
+
+### Text detection sample
+
+Execute the sample:
+
+ node textDetection analyze resources
+ node textDetection lookup the sunbeams in

vision/not-a-meme.txt

@@ -0,0 +1,2 @@
+I am not a meme. Don't fail if you accidently include me in your Vision API
+request, please.

vision/package.json

@@ -7,13 +7,11 @@
  "engines": {
  "node": ">=0.10.x"
  },
- "scripts": {
- "faceDetection": "node faceDetection.js",
- "labelDetection": "node labelDetection.js",
- "landmarkDetection": "node landmarkDetection.js"
- },
  "dependencies": {
+ "async": "^1.5.0",
+ "canvas": "^1.3.15",
  "gcloud": "^0.32.0",
- "canvas": "^1.3.15"
+ "natural": "^0.4.0",
+ "redis": "^2.6.0-2"
  }
 }