Can you please explain me How actually QR codes are created and How they are decoded. There are lots of websites and apps that can do the job. Here I have created a QR-code for the character QR12 by the website and this gives the following code :
I have decoded it to verify with the website and this gives the correct result.
I a'm very much interested to know the logic behind this to encode each character which is related to each square block. If I want to create this QR code by hand using pen and white paper, how can I do this. How can I do the reverse process also manually.
Thanks in advance.