Asked by angel
on 13 Apr 2013

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

Answer by Image Analyst
on 13 Apr 2013

Accepted Answer

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.

angel
on 15 Apr 2013

thank u so much sir.......

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
on 8 May 2017

Aqsa Ali: which code are you using? Please post it.

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