I've been working on identifying Usnea lately and I've been taking a lot of CMA measurements. I quickly got tired of manually measuring pixels and doing the calculation, so I decided to make a website for it you can find here (there's a quick guide on the about page too).
Would love if it were useful to others too! If you do use it, let me know if you have any ideas for improvement or if you notice any bugs (I've only tested with Safari, Firefox, and Chrome, but it ought to work in Edge/Opera too).
