Performs Label detection, face detection, Logo detection, explicit content detection, landmark detection, optical character recogition and web detection on images. You can read more about Google cloud vision here https://cloud.google.com/vision/

You will need a google account to use this API so if you do not already have an account with google, head over there and create one

composer require wapnen/google-cloud-vision-php

To start using the google cloud vision api, follow the instructions here to enable the api for your google account https://cloud.google.com/vision/docs/before-you-begin

You must set up an Api key to authenticate your requests. Follow the instructions here https://support.google.com/cloud/answer/6158862?hl=en to set up an API key for your project on google cloud platform console

<?php
include "vendor/autoload.php";
use GoogleCloudVision\GoogleCloudVision;
use GoogleCloudVision\Request\AnnotateImageRequest;
use GoogleCloudVision\Request\Request;


$annotateImageRequest1 = new AnnotateImageRequest();
$annotateImageRequest1->setImageUri("https://cdn.pixabay.com/photo/2016/02/19/11/25/supreme-court-building-1209701_960_720.jpg");
$annotateImageRequest1->setFeature('IMAGE_PROPERTIES');
$annotateImageRequest1->setFeature('LABEL_DETECTION');
$annotateImageRequest1->setFeature('WEB_DETECTION');

$gcvRequest = new GoogleCloudVision([$annotateImageRequest1], "Your_api_key");
$response = $gcvRequest->annotate();

echo json_encode($response);



 ?>

Note : You can create as many as 16 Annotate image requests to be sent with the request object

The function setImageUri(); takes a Google Cloud Storage image location, or publicly-accessible image URL. Alternatively you can use setImage(); which takes a base64 encoded image string.

You can set as many features as are available to the annotateImageRequest by calling the setFeature(); function on the annotateImageRequest which takes any of the following enum parameters ; TYPE_UNSPECIFIED, FACE_DETECTION, LANDMARK_DETECTION, LOGO_DETECTION, LABEL_DETECTION, TEXT_DETECTION, DOCUMENT_TEXT_DETECTION, SAFE_SEARCH_DETECTION, IMAGE_PROPERTIES, CROP_HINTS, WEB_DETECTION.

Optionally, you can set the image context for each annotateImageRequest object like so

$annotateImageRequest1 = new AnnotateImageRequest()
$annotateImageRequest1->setImageContext();
$annotateImageRequest1->getImageContext()->setCropHintsParams([1.333]); //array
$annotateImageRequest1->getImageContext()->setWebDetectionParams(false);  //boolean
$annotateImageRequest1->getImageContext()->setLanguageHints([]); //array

Finally, the GoogleCloudVision request object takes an array of AnnotateImageRequest objects as the first parameter and the api key as the second parameter

If successful, you will receive a json object response in the format below;

{
  "responses": [
    {
      object(AnnotateImageResponse)
    }
  ]
}