The PHP OCR SDK supports the License Plate API.

Using the sample below, we are going to illustrate how to extract the data that we want using the OCR SDK.

Quick-Start

<?php

use Mindee\Client;
use Mindee\Product\Eu\LicensePlate\LicensePlateV1;

// Init a new client
$mindeeClient = new Client("my-api-key");

// Load a file from disk
$inputSource = $mindeeClient->sourceFromPath("/path/to/the/file.ext");

// Parse the file
$apiResponse = $mindeeClient->parse(LicensePlateV1::class, $inputSource);

echo $apiResponse->document;

Output (RST):

########
Document
########
:Mindee ID: f0f48232-2c80-4473-9c6f-88a09111b84d
:Filename: default_sample.jpg

Inference
#########
:Product: mindee/license_plates v1.0
:Rotation applied: No

Prediction
==========
:License Plates: BY-323-YB

Page Predictions
================

Page 0
------
:License Plates: BY-323-YB

Field Types

Standard Fields

These fields are generic and used in several products.

BaseField

Each prediction object contains a set of fields that inherit from the generic BaseField class.
A typical BaseField object will have the following attributes:

• value (float|string): corresponds to the field value. Can be null if no value was extracted.
• confidence (float): the confidence score of the field prediction.
• boundingBox ([Point, Point, Point, Point]): contains exactly 4 relative vertices (points) coordinates of a right rectangle containing the field in the document.
• polygon (Point[]): contains the relative vertices coordinates (Point) of a polygon containing the field in the image.
• pageId (integer): the ID of the page, always null when at document-level.
• reconstructed (bool): indicates whether an object was reconstructed (not extracted as the API gave it).

Note: A Point simply refers to a list of two numbers ([float, float]).

Aside from the previous attributes, all basic fields have access to a custom __toString method that can be used to print their value as a string.

StringField

The text field StringField implements the following:

• value (string): represents the value of the field as a string.
• rawValue (string): the value of the string as it appears on the document.

Attributes

The following fields are extracted for License Plate V1:

License Plates

licensePlates : List of all license plates found in the image.

foreach ($result->document->inference->prediction->licensePlates as $licensePlatesElem)
{
    echo $licensePlatesElem->value;
}

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