Zerewan / highlight-text-in-image

Find and highlight Text in Images using Google Cloud Vision API

PHP Highlight Text in Image

Lets you check for and highlight strings in images utilizing Googles Cloud Vision API

Installation

$ composer require janrop/highlight-text-in-image

Before using you need to download a Google Authentication Details .json file and reference it in the GOOGLE_APPLICATION_CREDENTIALS environment variable:

putenv('GOOGLE_APPLICATION_CREDENTIALS=./path_to/google_application_credentials.json');

Usage

use Janrop\TextInImageHighlighter;

$image = fopen(__DIR__ . '/Lorem_Ipsum_Helvetica.png', 'r');

$highlighter = new \Janrop\TextInImageHighlighter($image);

# Check if String "Foo" exists in document.
# If it does  highlight it with a green border.
# If not highlight all Blocks containing "Bar" with a red border.
if($highlighter->find('Foo')->countMatches()){
    $highlighter->highlight([0, 255, 0], 3);
}else{
    $highlighter->find('Bar', false)
                 ->highlight([255, 0, 0], 3);
}

# Save image to jpeg
imagejpeg($highlighter->getImage(), "annotated.jpg");