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# VNBarcodeObservation

An object that represents barcode information that an image analysis request detects.

```
class VNBarcodeObservation
```

## Overview

This type of observation results from a [`VNDetectBarcodesRequest`](/documentation/Vision/VNDetectBarcodesRequest). It contains information about the detected barcode, including parsed payload data for supported symbologies.

## Topics

### Parsing the Payload

[`payloadStringValue`](/documentation/Vision/VNBarcodeObservation/payloadStringValue)

A string value that represents the barcode payload.

[`payloadData`](/documentation/Vision/VNBarcodeObservation/payloadData)

The raw data representation of the barcode’s payload.

[`supplementalPayloadString`](/documentation/Vision/VNBarcodeObservation/supplementalPayloadString)

The supplemental code decoded as a string value.

[`supplementalPayloadData`](/documentation/Vision/VNBarcodeObservation/supplementalPayloadData)

[`supplementalCompositeType`](/documentation/Vision/VNBarcodeObservation/supplementalCompositeType)

The supplemental composite type.

[`isGS1DataCarrier`](/documentation/Vision/VNBarcodeObservation/isGS1DataCarrier)

A Boolean value that indicates whether the barcode carries any global standards data.

### Reading Barcode Descriptors

[`barcodeDescriptor`](/documentation/Vision/VNBarcodeObservation/barcodeDescriptor)

An object that describes the low-level details about the barcode and its data.

### Identifying Barcode Types

[`symbology`](/documentation/Vision/VNBarcodeObservation/symbology)

The symbology of the observed barcode.

### Identifying Barcode Colors

[`isColorInverted`](/documentation/Vision/VNBarcodeObservation/isColorInverted)

A Boolean value that indicates whether the barcode is color inverted.


---

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