Hello Huda Ghassan Hameed ,

Even though I don't have the slightest idea of what CAM or RAAR means,

Is this of any help?

http://image.bio.methods.free.fr/ImageJ/?Angiogenesis-Analyzer-for-ImageJ

The paper is here:

https://www.nature.com/articles/s41598-020-67289-8

Maybe you can also ask for help at the Image analysis forum...

https://forum.image.sc/

I hope this helps,

Cheers,

J