janrop/highlight-text-in-image

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Find and highlight Text in Images using Google Cloud Vision API

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v1.0 2017-06-23 09:34 UTC

Requires

• php: >=5.4.0
• ext-gd: *
• google/cloud-vision: ^0.3.0

Requires (Dev)

• phpunit/phpunit: ^6.1

Unknown License

• Jan Ropertz

README

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");