## plz help me sorting the error...

on 13 Apr 2013

### Image Analyst (view profile)

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

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### Image Analyst (view profile)

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.

angel

### angel (view profile)

on 15 Apr 2013

the problem is in the last line sir

` imshow(S,256)`
```Error using imshow>preParseInputs (line 385)
The syntax IMSHOW(I,N) has been removed.
```
``` Error in imshow (line 194)
varargin_translated = preParseInputs(varargin{:});```
``` Error in dyadicAnalysis (line 56)
imshow(S,256);```
``` 385     error(message('images:removed:syntaxNoReplacement','IMSHOW(I,N)'))
K>> ```
Walter Roberson

### Walter Roberson (view profile)

on 15 Apr 2013

```imshow(S, [])
```
angel

### angel (view profile)

on 15 Apr 2013

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

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