how to get co-efficient from an image

I have an image plz tell how to get co-efficient as output

[Walter Roberson]

You will need to expand on your question. Which co-efficients are you referring to?

Consider that in the code

IMG = imread('lena256.tif');

then the array IMG could be termed to be the "coefficients" of the image.

[FIR]

Walter am getting numreric values as per ur comment in my previous question

I=imread('lena.bmp')

K=dec2bin(I);

[r c]=size(K)

J=K-0;

W=zeros(r,c);

J=K-W

i get numeric values

[FIR]

walter plz look at this picture

http://www.sendspace.com/file/rq0diw

i have completed till modified ebcot .plz tell how to get output bit stream

Answer 1

[Walter Roberson]

K = dec2bin(I) - '0';

I did specifically say to subtract the character '0' not the number 0.