I am using the topic visualization library LDAvis:
## visualization of the topics
import pyLDAvis
import pyLDAvis.gensim
pyLDAvis.enable_notebook()
pyLDAvis.gensim.prepare(ldamodel, corpus, dictionary)
which produces an image of the Principal Components of the topics unveiled by the LDA (Latent Dirichlet Allocation) model. I will like to download the image but I am stuck. Any help much appreciated it!