Below is one of a small number of similar images that I am having problems post processing. It isn't a great photograph ... just a poor snap, really ... and has lots of issues. I've dealt with quite a few of them (up to a point), already, and decided on a few others that I will ignore (like the fact that it is a long way off vertical). And I've taught myself about frequency separation and various other novel Photoshop things in the process.
All good learning but not enough.
The image is one of a few that are very important to me (not everyone in this photo is still alive) and I would really like to get it to the point where I could make a print fit to hang on a wall. The principal issue I have is the background ... which is a mess. It could be replaced or it could be blurred, faded and de-emphasised. Either way, it needs some treatment to allow the main subjects to be better separated from it.
I've 'Googled' this to death and spent quite a few hours going down various blind Photoshop alleys. I haven't found anything that gives me a very precise and high detail mask that allows exact outline (especially the hair) of the two subjects to be retained so that I can blur or simply replace the background.
How can I fix this? I don't mind if I have to spend days of effort over it; the image is important. I do need a solution that can be made to work.
Grateful for your advice.