---
title: VNBarcodeObservation
framework: vision
role: symbol
role_heading: Class
path: vision/vnbarcodeobservation
---

# VNBarcodeObservation

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

## Declaration

```swift
class VNBarcodeObservation
```

## Overview

Overview This type of observation results from a VNDetectBarcodesRequest. It contains information about the detected barcode, including parsed payload data for supported symbologies.

## Topics

### Parsing the Payload

- [payloadStringValue](vision/vnbarcodeobservation/payloadstringvalue.md)
- [payloadData](vision/vnbarcodeobservation/payloaddata.md)
- [supplementalPayloadString](vision/vnbarcodeobservation/supplementalpayloadstring.md)
- [supplementalPayloadData](vision/vnbarcodeobservation/supplementalpayloaddata.md)
- [supplementalCompositeType](vision/vnbarcodeobservation/supplementalcompositetype.md)
- [isGS1DataCarrier](vision/vnbarcodeobservation/isgs1datacarrier.md)

### Reading Barcode Descriptors

- [barcodeDescriptor](vision/vnbarcodeobservation/barcodedescriptor.md)

### Identifying Barcode Types

- [symbology](vision/vnbarcodeobservation/symbology.md)

### Identifying Barcode Colors

- [isColorInverted](vision/vnbarcodeobservation/iscolorinverted.md)

## Relationships

### Inherits From

- [VNRectangleObservation](vision/vnrectangleobservation.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSCoding](foundation/nscoding.md)
- [NSCopying](foundation/nscopying.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [NSSecureCoding](foundation/nssecurecoding.md)
- [VNRequestRevisionProviding](vision/vnrequestrevisionproviding.md)

## See Also

### Accessing the Results

- [results](vision/vndetectbarcodesrequest/results.md)