Translating from Matlab to C a function -


i translating funciton matlab c. have problem lines fourier transform. code, commented lines in matlab , that's need translate. 

   mat loggabor(mat imfft,int *sz2filt_r,int *sz2filt_c,double r_o, double theta_o,double sigma_theta,double **radius,double **theta,int cols,int rows,double sigma_r,int *padsize);      mat rpad;      int k=*padsize;      int rs=*sz2filt_r;      int cs=*sz2filt_c;    double x[rs-(2*k)],y[cs-(2*k)],sintheta[rows][cols],costheta[rows][cols];    double ds[rows][cols],dc[rows][cols],divis[rows][cols],divis2[rows][cols];     double filter[rows][cols],dalpha[rows][cols],spread[rows][cols];    double div=(pi)/180.0;    for(int a=0; a<rows; a++){    for(int b=0; b<cols; b++){    theta[a][b]=theta[a][b]*div;    sintheta[a][b]=sin(theta[a][b]);    costheta[a][b]=cos(theta[a][b]);    ds[a][b] = (sintheta[a][b] * cos(theta_o) - costheta[a][b] * sin(theta_o))*div;   dc[a][b] = (costheta[a][b] * cos(theta_o) + sintheta[a][b] * sin(theta_o))*div;   dalpha[a][b] = abs(atan2(ds[a][b],dc[a][b]));   divis[a][b] = -(dalpha[a][b]*dalpha[a][b])/(2*(sigma_theta*sigma_theta));   spread[a][b]= exp(divis[a][b]);   divis2[a][b]= -(log((radius[a][b]/r_o) * (radius[a][b]/r_o))/(2*log(sigma_r*sigma_r)));   filter[a][b]= exp(divis2[a][b]);   filter[a][b]=filter[a][b]*spread[a][b];   //  filter = fftshift(filter);    //  rpad = ifft2(imfft.*filter);   }       }   for(int i=1+k;i<=rs-k;i++)     x[i]= i;   for(int i=1+k;i<=cs-k;i++)       y[i]= i;    //  rpad=rpad(x,y);  delete x & y rpad      return rpad;     }

or if want code fft yourslef, matlabs's fft code , translate line line.


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