I've been struggling to find the way to get eigen values and eigen vectors from scikit-learn API, KernelPCA(). (PYTHON)

I figured out that I was not able to get eigen vectors or eigen values from data with scikit-learn's API thesedays.
(The data is from a gray scaled Picture)

Then, To get eigen vector and values, I created the centered Kernel matrix (K) and put it into scipy.linalg.eigh(K).
The problem is I can't find whether these eigen values and vectors are correct..
The thing is, I think, the sum of eigen values I got are not equal to 1.

If I could get eigen values and vectors with a certain API, I can compare these..

What should I do?