Reed-Solomon
Reed-Solomon Error Correction
The error-correcting code used in QR codes that enables data recovery even when part of the code is damaged.
तकनीकी विवरण
Reed-Solomons encode data in a 2D matrix of black and white modules (squares). Version 1 is 21x21 modules; version 40 is 177x177, storing up to 4,296 alphanumeric characters. Four error correction levels (L:7%, M:15%, Q:25%, H:30%) add Reed-Solomon redundancy, allowing data recovery from damaged or partially obscured codes. The three large finder patterns in corners enable orientation detection, while alignment patterns (added in version 2+) compensate for surface curvature and printing distortion.
उदाहरण
```javascript
// QR code generation with error correction
const qr = generateQR({
data: 'https://peasytools.com',
size: 256, // pixels
errorCorrection: 'M', // L(7%), M(15%), Q(25%), H(30%)
margin: 4, // quiet zone modules
});
// Output as SVG (scalable, smallest file size)
document.getElementById('qr').innerHTML = qr.toSVG();
```
संबंधित टूल्स
Q
QR डेटा विश्लेषक
Q
QR क्षमता संदर्भ
W
Wi-Fi QR कॉन्फ़िग बिल्डर
V
vCard QR बिल्डर
त
त्रुटि सुधार कैलकुलेटर
ब
बारकोड प्रारूप संदर्भ
ब
बारकोड वैलिडेटर
Q
QR डेटा फॉर्मैटर
E
Event QR Generator
E
Email QR Generator
S
SMS QR Generator
G
Geo Location QR Generator
P
Phone Call QR Generator
M
MeCard Generator
A
App Store Link Generator