Stash markers is a tool that utilizes playbar sprite images to perform image recognition and generate a list of potential markers for a video.
To be used with Stash
Installation requires the browser extension Tampermonkey
By default the userscripts only work for http://localhost:9999
If you access Stash from a different address, you will need to modify the userscript when you install it.
Find the line
// @match http://localhost:9999/*
and replacehttp://localhost:9999/*
with your Stash address.
Once installed, A new icon will show on a scene's page next to the organized button.