QR Code Introduced to Provide Fertilizer Subsidy for Tea Cultivation 2025 – QR Code for Tea Cultivation
Minister of Irrigation and Community Infrastructure Samatha Vidyarathna says that a fertilizer subsidy of Rs. 200 million is to be provided for tea cultivation.
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What is QR Code:
A QR (Quick Response) code is a two-dimensional barcode that stores data, such as a website URL, text, or payment information, in a grid of black and white squares that can be rapidly read by a smartphone camera. When a smartphone camera scans a QR code, the software identifies the distinct pattern and extracts the encoded data, which then triggers an action, like opening a website or initiating a payment.
How it Works
Encoding Data:
- The information you want to store (like a website address) is converted into a binary pattern of black and white modules.
The Grid: These modules are arranged in a square grid.
Timing and Alignment:
- Other patterns, like “timing strips” and “alignment patterns,” help the scanner precisely determine the size of the code and read it accurately.
The Quiet Zone:
- An empty white border, called the “quiet zone,” surrounds the QR code to help the device differentiate the code from its surroundings.
Redundancy:
- QR codes include data redundancy. This means that even if some parts of the code are damaged or obscured (up to 30%), the scanner can still recover the complete information by reading the remaining visible modules.
Scanning:
- When a smartphone camera points at a QR code, the built-in software recognizes the pattern, especially the position markers, and then “reads” the binary information.
Action:
- The extracted data is then used to perform an action, such as opening a webpage, sending an email, connecting to Wi-Fi, or displaying text.
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