The PHP OCR SDK supports the Cropper 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\Cropper\CropperV1;

// 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(CropperV1::class, $inputSource);

echo $apiResponse->document;

Output (RST):

########
Document
########
:Mindee ID: 149ce775-8302-4798-8649-7eda9fb84a1a
:Filename: default_sample.jpg

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

Prediction
==========

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

Page 0
------
:Document Cropper: Polygon with 26 points.
                   Polygon with 25 points.

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.

PositionField

The position field PositionField does not implement all the basic BaseField attributes, only boundingBox, polygon and pageId. On top of these, it has access to:

• rectangle ([Point, Point, Point, Point]): a Polygon with four points that may be oriented (even beyond canvas).
• quadrangle ([Point, Point, Point, Point]): a free polygon made up of four points.

Page-Level Fields

Some fields are constrained to the page level, and so will not be retrievable at document level.

Attributes

The following fields are extracted for Cropper V1:

Document Cropper

📄cropping : List of documents found in the image.

foreach ($result->document->inference->pages as $page)
{
    foreach ($page->prediction->cropping as $croppingElem)
    {
        echo $croppingElem->polygon;
        echo $croppingElem->quadrangle->getCoordinates();
        echo $croppingElem->rectangle->getCoordinates();
        echo $croppingElem->boundingBox->getCoordinates();
    }
}

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