In this blog post, i will be able to allow you to skills to read content of images with Google Vision API.
Google Vision API can easily detect and extract text from a picture . There are two annotation features (TEXT_DETECTION, DOCUMENT_TEXT_DETECTION) that perform Optical Character Recognition and return the extracted text, if any.
In order to use Google Vision API, you'll need to create new project or select an existing project and enable the Vision API.
<!DOCTYPE html>
<html>
<head>
<title>How to read or detect text from image using Google Vision API </title>
</head>
<body>
<form enctype="multipart/form-data" action="" method="POST">
Choose an image to upload: <input name="image" type="file" /><br />
<input type="submit" value="Upload Document" />
</form>
<?php
$url = "https://vision.googleapis.com/v1/images:annotate?key={api_key}";
$detection_type = "TEXT_DETECTION";
$image_validation = array('image/jpeg','image/png','image/gif');
if($_FILES){
// validate uploaded file for allowed mime type
if(in_array($_FILES['image']['type'],$image_validation)){
// base64 encode image
$image = file_get_contents($_FILES['image']['tmp_name']);
$image_base64 = base64_encode($image);
$json_request ='{
"requests": [
{
"image": {
"content":"' . $image_base64. '"
},
"features": [
{
"type": "' .$detection_type. '",
"maxResults": 200
}
]
}
]
}';
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_HTTPHEADER, array("Content-type: application/json"));
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $json_request);
$json_response = curl_exec($curl);
$status = curl_getinfo($curl, CURLINFO_HTTP_CODE);
curl_close($curl);
// verify if we got a correct response
if ( $status != 200 ) {
die("Something when wrong. Status code: $status" );
}
// create an image identifier for the uploaded file
switch($_FILES['image']['type']){
case 'image/jpeg':
$im = imagecreatefromjpeg($_FILES['image']['tmp_name']);
break;
case 'image/png':
$im = imagecreatefrompng($_FILES['image']['tmp_name']);
break;
case 'image/gif':
$im = imagecreatefromgif($_FILES['image']['tmp_name']);
break;
}
// transform the json response to an associative array
$response = json_decode($json_response, true);
// display the first text annotation
echo'<pre>';
print_r($response['responses'][0]['textAnnotations'][0]['description']);
echo'</pre>';
}
else{
echo 'File type Invalied';
}
}
?>
</body>
</html>
Request a FREE Business Plan.
+91 ▼ 
Hire Web Developers in Coimbatore: Empower Your Digital Presence It is now imperative to have a professional and vibrant online presence in the cutthroat digital world. Hiring qualified web develop
Read More
In the fast-paced world of online retail, maintaining a seamless and user-friendly eCommerce website is essential for staying competitive. Businesses rely on their eCommerce platforms not just as digi
Read More
HTML template customization is a powerful way to create a unique and user-friendly website without starting from scratch. Whether you’re a business owner or a developer, customizing an HTML temp
Read More