I am doing offline signature verification for my project. While researching online I found that tha 1D log Gabor method can be used to find Hamming distance of an image. I got stuck in understanding 1D log Gabor. Wikipedia have some information. My question is how can we find the value of $f$, $f_0$ and $\sigma$ of an image given in Wikipedia 1D formula ?
Here is the link where I got idea about log Gabor can be one method for verification.