Need help with BER

I used 4 block encoding techniques to encode/decode image. I first added some noise to image, then encoded it, then applied filter to reduce noise and then decoded it. I did these steps in all 4 encoding techniques.

Now I want to compare those techniques to find out which one is better. I know that it can be done by ploting BER but I don't know how to do it.

Can you pls help me with this?

Answer 1

[Shadaab Siddiqie]

From my understanding you want to know how to user BER to compare two images. Here is an example :

A=imread('m.jpg)
B=imread('m.jpg)
(n,R)=biterr(a,b)

You can also determine the theoretical BER curve by using the berawgn function. Refer Bit Error Rate Computation for more information.

[Neeraj Chimwal]

Thankyou I wanted to create a BER curve. I have one question. In berawgn, what should be my EbNo?

Sorry if this is a naive question. Should I convert my final decoded image to vector for EbN0?