The Python OCR SDK supports the Barcode Reader 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, PredictResponse, product

# 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 parse it.
# The endpoint name must be specified since it cannot be determined from the class.
result: PredictResponse = mindee_client.parse(product.BarcodeReaderV1, input_doc)

# Print a summary of the API result
print(result.document)

# Print the document-level summary
# print(result.document.inference.prediction)

Output (RST):

########
Document
########
:Mindee ID: f9c48da1-a306-4805-8da8-f7231fda2d88
:Filename: default_sample.jpg

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

Prediction
==========
:Barcodes 1D: Mindee
:Barcodes 2D: https://developers.mindee.com/docs/barcode-reader-ocr
              I love paperwork! - Said no one ever

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

Page 0
------
:Barcodes 1D: Mindee
:Barcodes 2D: https://developers.mindee.com/docs/barcode-reader-ocr
              I love paperwork! - Said no one ever

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 be None 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, always None 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.

StringField

The text field StringField only has one constraint: its value is an Optional[str].

Attributes

The following fields are extracted for Barcode Reader V1:

Barcodes 1D

codes_1d (List[StringField]): List of decoded 1D barcodes.

for codes_1d_elem in result.document.inference.prediction.codes_1d:
    print(codes_1d_elem.value)

Barcodes 2D

codes_2d (List[StringField]): List of decoded 2D barcodes.

for codes_2d_elem in result.document.inference.prediction.codes_2d:
    print(codes_2d_elem.value)

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