Exclude a specific term from the list

I have a list that display images from the terms of a taxonomy ‘ediciones’. I need to exclude from the view a specific term ’20’ from the list. I can’t achive that. Any help?
This is the code that I’m using by now:

$ediciones = apply_filters( 'taxonomy-images-get-terms', '', array('taxonomy'=>'ediciones', 'exclude'=>'20' , 'image_size' => 'full', 'term_args' => array( 'order' => 'DESC' , 'orderby' => 'id', 'number' => 1 )));

https://www.ads-software.com/plugins/taxonomy-images/