The .NET OCR SDK supports the Driver License API.

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

Quick-Start

using Mindee;
using Mindee.Input;
using Mindee.Product.DriverLicense;

string apiKey = "my-api-key";
string filePath = "/path/to/the/file.ext";

// Construct a new client
MindeeClient mindeeClient = new MindeeClient(apiKey);

// Load an input source as a path string
// Other input types can be used, as mentioned in the docs
var inputSource = new LocalInputSource(filePath);

// Call the product asynchronously with auto-polling
var response = await mindeeClient
    .EnqueueAndParseAsync<DriverLicenseV1>(inputSource);

// Print a summary of all the predictions
System.Console.WriteLine(response.Document.ToString());

// Print only the document-level predictions
// System.Console.WriteLine(response.Document.Inference.Prediction.ToString());

Output (RST):

########
Document
########
:Mindee ID: fbdeae38-ada3-43ac-aa58-e01a3d47e474
:Filename: default_sample.jpg

Inference
#########
:Product: mindee/driver_license v1.0
:Rotation applied: Yes

Prediction
==========
:Country Code: USA
:State: AZ
:ID: D12345678
:Category: D
:Last Name: Sample
:First Name: Jelani
:Date of Birth: 1957-02-01
:Place of Birth:
:Expiry Date: 2018-02-01
:Issued Date: 2013-01-10
:Issuing Authority:
:MRZ:
:DD Number: DD1234567890123456

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:

Confidence (double?): the confidence score of the field prediction.
BoundingBox (BoundingBox): contains exactly 4 relative vertices (points) coordinates of a right rectangle containing the field in the document.
Polygon (Polygon): contains the relative vertices coordinates (Polygon extends List<Point>) of a polygon containing the field in the image.
PageId (int?): the ID of the page, always null when at document-level.

Note: A Point simply refers to a List of double.

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 extends BaseField, but also implements:

Value (string): corresponds to the field value.
RawValue (string): corresponds to the raw value as it appears on the document.

DateField

The date field DateField extends StringField, but also implements:

DateObject (DateTime?): an accessible representation of the value as a C# object. Can be null.

Attributes

The following fields are extracted for Driver License V1:

Country Code

CountryCode: The alpha-3 ISO 3166 code of the country where the driver license was issued.

System.Console.WriteLine(result.Document.Inference.Prediction.CountryCode.Value);

Date of Birth

DateOfBirth: The date of birth of the driver license holder.

System.Console.WriteLine(result.Document.Inference.Prediction.DateOfBirth.Value);

DD Number

DdNumber: The DD number of the driver license.

System.Console.WriteLine(result.Document.Inference.Prediction.DdNumber.Value);

Expiry Date

ExpiryDate: The expiry date of the driver license.

System.Console.WriteLine(result.Document.Inference.Prediction.ExpiryDate.Value);

First Name

FirstName: The first name of the driver license holder.

System.Console.WriteLine(result.Document.Inference.Prediction.FirstName.Value);

ID

Id: The unique identifier of the driver license.

System.Console.WriteLine(result.Document.Inference.Prediction.Id.Value);

Issued Date

IssuedDate: The date when the driver license was issued.

System.Console.WriteLine(result.Document.Inference.Prediction.IssuedDate.Value);

Issuing Authority

IssuingAuthority: The authority that issued the driver license.

System.Console.WriteLine(result.Document.Inference.Prediction.IssuingAuthority.Value);

Last Name

LastName: The last name of the driver license holder.

System.Console.WriteLine(result.Document.Inference.Prediction.LastName.Value);

MRZ

Mrz: The Machine Readable Zone (MRZ) of the driver license.

System.Console.WriteLine(result.Document.Inference.Prediction.Mrz.Value);

Place of Birth

PlaceOfBirth: The place of birth of the driver license holder.

System.Console.WriteLine(result.Document.Inference.Prediction.PlaceOfBirth.Value);

State

State: Second part of the ISO 3166-2 code, consisting of two letters indicating the US State.

System.Console.WriteLine(result.Document.Inference.Prediction.State.Value);

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