Hello everyone,
I am using the bicubic kernel described here ( Bicubic interpolation - Wikipedia, the free encyclopedia ) to interpolate my image after applying some transformations.
I an using the matrix kernel described here with a = -0.5.
Now, what I also need to do is estimate the kernel that is the derivative of this bicubic kernel. There is a bit of discussion in this page on the derivative but I am finding it impossible to be able to derive this kernel.
I would be really grateful if someone can help me derive this derivative kernel. My calculus skills are quite rusty but this is a roadblock for me for quite a few days now. I have also searched high and low on the internet for this derivative kernel but to no avail.
I look forward to any assistance you can give me.
Luc
I am using the bicubic kernel described here ( Bicubic interpolation - Wikipedia, the free encyclopedia ) to interpolate my image after applying some transformations.
I an using the matrix kernel described here with a = -0.5.
Now, what I also need to do is estimate the kernel that is the derivative of this bicubic kernel. There is a bit of discussion in this page on the derivative but I am finding it impossible to be able to derive this kernel.
I would be really grateful if someone can help me derive this derivative kernel. My calculus skills are quite rusty but this is a roadblock for me for quite a few days now. I have also searched high and low on the internet for this derivative kernel but to no avail.
I look forward to any assistance you can give me.
Luc