It took me the longest time to figure out how to reset the cmap option on a holoview Image object. It turns out, calling the opts() function with no arguments will reset the opts to the defaults. It is important to understand the difference between opts and options. Read more here:

so the code snippet is:

<hview element>.opts(clone=False)

where the clone=False parameter updates the element in place. So you don’t have to assigne the return value to a new element object. See the example below. A modification on the getting started tuorial at http://holoviews.org/getting_started/Introduction.html