How to find certain line pattern on image

there is very little data in that picture and I think it’s not enough to answer questions like “what’s the orientation of the break”. I think it’s somewhat doable but the result will be guesswork and I suspect the task is made needlessly difficult by the poor picture quality and your other stated constraints, for which there was no justification given.

if you want to test the limits of feasibility, that’s a challenge you give yourself.