What is a QR code?
QR code (which stands for Quick Response code) is a two-dimensional barcode that is used to redirect users to a specific site immediately just by scanning an image. The point of a QR code is to simplify the searching process, as the use of mobile devices is increasing, making it more inconvenient for users to type in website addresses.
QR code is often used on banners, flyers, posters, and so on. Visitors can easily use their smartphones to go to the website of that particular product/ service/ event, just by scanning the code with their camera.
Modern businesses and event companies are making use of QR codes to compress data into a small black-and-white picture, which can be widely accessible and fit a wide range of applications, from providing product descriptions, contact details, to coupons, discounts, or voting.
What are some basic features of a QR code?
- Small printout size
- Data to be encoded sufficiently
- Durable in coping with dirt and damage
- Readable within a 360-degree direction
What are the types of QR codes?
- Micro QR code: This is designed for product packaging, which needs fewer modules than normal QR codes to be printed on a smaller surface.
- iQR code: This type is usually designed in a square or rectangular shape, sometimes in the form of a dot pattern code, which is used in situations where the square or rectangular shape is needed.
- Secure QR code: This type looks like an iQR code, but is used to store private information. This confidential data must be deciphered with an encryption key.
- Frame QR: This type has a specific area intended for adding letters or graphics. It is supposed to run the code without losses of designs for promotion purposes.
- HCC2D code (High Capacity Colored 2-Dimensional): This is built upon a QR code basis to save its robustness, by adding colors to deal with data density.