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 ▼ 
In 2025, London continues to shine as a global tech hub, home to some of the most innovative and reliable software development companies. Businesses across industries rely on software development firm
Read More
Blazingcoders is an Animation development company in India. We provide animation services to various type of industries. The animation is a creative concept of graphic representation within the sequen
Read More
In today’s digital-first landscape, partnering with an influencer marketing company can turbocharge your brand’s awareness, credibility, and sales. But with so many agencies out there, how
Read More