Class QrErrorCorrectionLevel
The error correction level of a QR code. A higher QrErrorCorrectionLevel creates more complex QR codes, which are less prone to reading errors. They may also be readable if damaged or partially obscured.
Please also see http://www.qrcode.com/en/about/error_correction.html
Inheritance
Namespace: IronQr
Assembly: IronQr.dll
Syntax
public sealed class QrErrorCorrectionLevel : EnumQrErrorCorrectionLevel sets how much redundancy a QR code carries so it still scans when damaged or partly obscured, assigned to QrOptions.ErrorCorrectionLevel. Low adds the least overhead and keeps the symbol simple, Medium is a common balance, and High and Highest add the most recovery data, which is what lets a logo sit over the center of a code. The error correction example shows the trade-off, and the fault-tolerance how-to explains recovery.
var options = new QrOptions(QrEncoding.QRCode, QrErrorCorrectionLevel.Highest);Fields
High
QR Code error correction Level Q. Approximately 25% of QR data can be recovered.
Declaration
public const QrErrorCorrectionLevel HighField Value
| Type | Description |
|---|---|
| QrErrorCorrectionLevel |
Highest
QR Code error correction Level H. Approximately 30% of QR data can be recovered.
Level H allows sufficient capacity for logo images or graphics to be stamped into QR codes.
Declaration
public const QrErrorCorrectionLevel HighestField Value
| Type | Description |
|---|---|
| QrErrorCorrectionLevel |
Low
QR Code error correction Level L. Approximately 7% of QR data can be recovered.
Declaration
public const QrErrorCorrectionLevel LowField Value
| Type | Description |
|---|---|
| QrErrorCorrectionLevel |
Medium
QR Code error correction Level M. Approximately 15% of QR data can be recovered.
Declaration
public const QrErrorCorrectionLevel MediumField Value
| Type | Description |
|---|---|
| QrErrorCorrectionLevel |
value__
Declaration
public int value__Field Value
| Type | Description |
|---|---|
| System.Int32 |