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IND Passport - India OCR Node.js

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The Node.js OCR SDK supports the Passport - India API.

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

Quick-Start

const mindee = require("mindee");
// for TS or modules:
// import * as mindee from "mindee";

// Init a new client
const mindeeClient = new mindee.Client({ apiKey: "my-api-key" });

// Load a file from disk
const inputSource = mindeeClient.docFromPath("/path/to/the/file.ext");

// Parse the file
const apiResponse = mindeeClient.enqueueAndParse(
  mindee.product.ind.IndianPassportV1,
  inputSource
);

// Handle the response Promise
apiResponse.then((resp) => {
  // print a string summary
  console.log(resp.document.toString());
});

Output (RST):

########
Document
########
:Mindee ID: cf88fd43-eaa1-497a-ba29-a9569a4edaa7
:Filename: default_sample.jpg

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

Prediction
==========
:Page Number: 1
:Country: IND
:ID Number: J8369854
:Given Names: JOCELYN MICHELLE
:Surname: DOE
:Birth Date: 1959-09-23
:Birth Place: GUNDUGOLANU
:Issuance Place: HYDERABAD
:Gender: F
:Issuance Date: 2011-10-11
:Expiry Date: 2021-10-10
:MRZ Line 1: P<DOE<<JOCELYNMICHELLE<<<<<<<<<<<<<<<<<<<<<
:MRZ Line 2: J8369854<4IND5909234F2110101<<<<<<<<<<<<<<<8
:Legal Guardian:
:Name of Spouse:
:Name of Mother:
:Old Passport Date of Issue:
:Old Passport Number:
:Address Line 1:
:Address Line 2:
:Address Line 3:
:Old Passport Place of Issue:
:File Number:

Field Types

Standard Fields

These fields are generic and used in several products.

Basic Field

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

  • value (number | string): corresponds to the field value. Can be undefined if no value was extracted.
  • confidence (number): 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 (number): the ID of the page, always undefined when at document-level.
  • reconstructed (boolean): indicates whether an object was reconstructed (not extracted as the API gave it).

Note: A Point simply refers to an array of two numbers ([number, number]).

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

Classification Field

The classification field ClassificationField does not implement all the basic Field attributes. It only implements value, confidence and pageId.

Note: a classification field's value is always a string`.

Date Field

Aside from the basic Field attributes, the date field DateField also implements the following:

  • dateObject (Date): an accessible representation of the value as a JavaScript object.

String Field

The text field StringField only has one constraint: its value is a string (or undefined).

Attributes

The following fields are extracted for Passport - India V1:

Address Line 1

address1 (StringField): The first line of the address of the passport holder.

console.log(result.document.inference.prediction.address1.value);

Address Line 2

address2 (StringField): The second line of the address of the passport holder.

console.log(result.document.inference.prediction.address2.value);

Address Line 3

address3 (StringField): The third line of the address of the passport holder.

console.log(result.document.inference.prediction.address3.value);

Birth Date

birthDate (DateField): The birth date of the passport holder, ISO format: YYYY-MM-DD.

console.log(result.document.inference.prediction.birthDate.value);

Birth Place

birthPlace (StringField): The birth place of the passport holder.

console.log(result.document.inference.prediction.birthPlace.value);

Country

country (StringField): ISO 3166-1 alpha-3 country code (3 letters format).

console.log(result.document.inference.prediction.country.value);

Expiry Date

expiryDate (DateField): The date when the passport will expire, ISO format: YYYY-MM-DD.

console.log(result.document.inference.prediction.expiryDate.value);

File Number

fileNumber (StringField): The file number of the passport document.

console.log(result.document.inference.prediction.fileNumber.value);

Gender

gender (ClassificationField): The gender of the passport holder.

Possible values include:

  • M
  • F
console.log(result.document.inference.prediction.gender.value);

Given Names

givenNames (StringField): The given names of the passport holder.

console.log(result.document.inference.prediction.givenNames.value);

ID Number

idNumber (StringField): The identification number of the passport document.

console.log(result.document.inference.prediction.idNumber.value);

Issuance Date

issuanceDate (DateField): The date when the passport was issued, ISO format: YYYY-MM-DD.

console.log(result.document.inference.prediction.issuanceDate.value);

Issuance Place

issuancePlace (StringField): The place where the passport was issued.

console.log(result.document.inference.prediction.issuancePlace.value);

Legal Guardian

legalGuardian (StringField): The name of the legal guardian of the passport holder (if applicable).

console.log(result.document.inference.prediction.legalGuardian.value);

MRZ Line 1

mrz1 (StringField): The first line of the machine-readable zone (MRZ) of the passport document.

console.log(result.document.inference.prediction.mrz1.value);

MRZ Line 2

mrz2 (StringField): The second line of the machine-readable zone (MRZ) of the passport document.

console.log(result.document.inference.prediction.mrz2.value);

Name of Mother

nameOfMother (StringField): The name of the mother of the passport holder.

console.log(result.document.inference.prediction.nameOfMother.value);

Name of Spouse

nameOfSpouse (StringField): The name of the spouse of the passport holder (if applicable).

console.log(result.document.inference.prediction.nameOfSpouse.value);

Old Passport Date of Issue

oldPassportDateOfIssue (DateField): The date of issue of the old passport (if applicable), ISO format: YYYY-MM-DD.

console.log(result.document.inference.prediction.oldPassportDateOfIssue.value);

Old Passport Number

oldPassportNumber (StringField): The number of the old passport (if applicable).

console.log(result.document.inference.prediction.oldPassportNumber.value);

Old Passport Place of Issue

oldPassportPlaceOfIssue (StringField): The place of issue of the old passport (if applicable).

console.log(result.document.inference.prediction.oldPassportPlaceOfIssue.value);

Page Number

pageNumber (ClassificationField): The page number of the passport document.

Possible values include:

  • 1
  • 2
console.log(result.document.inference.prediction.pageNumber.value);

Surname

surname (StringField): The surname of the passport holder.

console.log(result.document.inference.prediction.surname.value);

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Updated about 1 month ago