Can I automatically regenerate all images after using Drush image-flush? I used drush image-flush to delete all generated image style images on my site.

I know that image style images are automatically regenerated when you try to view them in a browser, but is there a way to "prime the cache" and automatically regenerate all image styles for all images after they have been deleted?
I usually see people using wget or httrack for this - request every page in your site, and all of the images will be regenerated. Not very sophisticated, I know.  As far as I know, though, there is no Drush command to do this.