plz help me sorting the error...

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angel
angel on 13 Apr 2013
Commented: Walter Roberson on 8 May 2017
the code i wrote is:
S(y,x)=0.125*f(y,mod(x-p-2,N)+1)+...
0.375*f(y,x)+...
0.375*f(y,mod(x+p,N)+1)+...
0.125*f(y,mod(x+p*2+1,N)+...
0.125*f(mod(y-p-2,N)+1,x)+...
0.375*f(y,x)+...
0.375*f(mod(y+p,N)+1,x)+...
0.125*f(mod(y+p*2+1,N)+1,x));
here f() corresponds to my input image
error shown is:
Attempted to access f(1,169.125); index must be a positive integer or logical.
Error in dyadicAnalysis (line 29)
S(y,x)=0.125*f(y,mod(x-p-2,N)+1)+...
here p=2^j-1; where j is a loop variable starts from 1 and end at log(N)/log(2)
N=sizef(1), sizef=size(f);
can anybody tell me what is the problem in it? i've tried floor but the error remains the same

Accepted Answer

Image Analyst
Image Analyst on 13 Apr 2013
There is no 169.125'th element of a matrix. You can access element # 169 or 170, but if you want to get 169.125 then you'll have to do interpolation.
  13 Comments
Aqsa Ali
Aqsa Ali on 8 May 2017
Error using imshow>preParseInputs (line 425) IMSHOW expected at least 1 input argument but was called instead with 0 input arguments.
Error in imshow (line 214) varargin_translated = preParseInputs(varargin{:}); while running the code i am facing this error please help me in sorting out this error
Walter Roberson
Walter Roberson on 8 May 2017
Aqsa Ali: which code are you using? Please post it.

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