Driver License OCR Python
The Python 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.
Quick-Start
from mindee import Client, product, AsyncPredictResponse
# Init a new client
mindee_client = Client(api_key="my-api-key")
# Load a file from disk
input_doc = mindee_client.source_from_path("/path/to/the/file.ext")
# Load a file from disk and enqueue it.
result: AsyncPredictResponse = mindee_client.enqueue_and_parse(
product.DriverLicenseV1,
input_doc,
)
# Print a brief summary of the parsed data
print(result.document)
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:
- value (
Union[float, str]
): corresponds to the field value. Can beNone
if no value was extracted. - confidence (
float
): the confidence score of the field prediction. - bounding_box (
[Point, Point, Point, Point]
): contains exactly 4 relative vertices (points) coordinates of a right rectangle containing the field in the document. - polygon (
List[Point]
): contains the relative vertices coordinates (Point
) of a polygon containing the field in the image. - page_id (
int
): the ID of the page, alwaysNone
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 __str__
method that can be used to print their value as a string.
DateField
Aside from the basic BaseField
attributes, the date field DateField
also implements the following:
- date_object (
Date
): an accessible representation of the value as a python object. Can beNone
.
StringField
The text field StringField
only has one constraint: its value is an Optional[str]
.
Attributes
The following fields are extracted for Driver License V1:
Category
category (StringField): The category or class of the driver license.
print(result.document.inference.prediction.category.value)
Country Code
country_code (StringField): The alpha-3 ISO 3166 code of the country where the driver license was issued.
print(result.document.inference.prediction.country_code.value)
Date of Birth
date_of_birth (DateField): The date of birth of the driver license holder.
print(result.document.inference.prediction.date_of_birth.value)
DD Number
dd_number (StringField): The DD number of the driver license.
print(result.document.inference.prediction.dd_number.value)
Expiry Date
expiry_date (DateField): The expiry date of the driver license.
print(result.document.inference.prediction.expiry_date.value)
First Name
first_name (StringField): The first name of the driver license holder.
print(result.document.inference.prediction.first_name.value)
ID
id (StringField): The unique identifier of the driver license.
print(result.document.inference.prediction.id.value)
Issued Date
issued_date (DateField): The date when the driver license was issued.
print(result.document.inference.prediction.issued_date.value)
Issuing Authority
issuing_authority (StringField): The authority that issued the driver license.
print(result.document.inference.prediction.issuing_authority.value)
Last Name
last_name (StringField): The last name of the driver license holder.
print(result.document.inference.prediction.last_name.value)
MRZ
mrz (StringField): The Machine Readable Zone (MRZ) of the driver license.
print(result.document.inference.prediction.mrz.value)
Place of Birth
place_of_birth (StringField): The place of birth of the driver license holder.
print(result.document.inference.prediction.place_of_birth.value)
State
state (StringField): Second part of the ISO 3166-2 code, consisting of two letters indicating the US State.
print(result.document.inference.prediction.state.value)
Questions?
Updated 11 days ago