Need help cleaning up scan

[LostInTranslation]

Hi,

a friend is getting married soon and she sent out invitation cards with a certain design. The cards are store-bought and on heavy paper with a strong structure.

She asked me, if I could help her out and make namecards for the table and menus in the same design.
Since this is strictly non-commercial, non-profit and will only be seen by a handful of people at this very wedding, I scanned the main component to use it.

Of course because of the paper it turned out not so good. I don't know the correct english term, but maybe blotchy or something? You see the structure of the paper and the print  in the scan.

Is there a way to even the colored areas out, without too much manual work and while keeping sharp borders?
It is meant to be grungy with the broken lines, but the colored areas should be an even blue.

It is way too big and complicated to vectorize it by hand or manually paint over every area.

I attach a small sample of the design, you will see what I mean.
And idea how to do this in AP?

Thanks!

[Gabe]

Hi @LostInTranslation,

You can try using the FFT Denoise. Iit's generally good for removing patterns, but you would need a larger image not just a cropped portion to get better results. 

Thanks,

Gabe. 

[John Rostron]

1 hour ago, LostInTranslation said:

Since this is strictly non-commercial, non-profit and will only be seen by a handful of people at this very wedding, I scanned the main component to use it.

I think that you will find that it is still a breach of copyright and that any advice on how to do it is abetting the breach.

John

[walt.farrell]

3 minutes ago, John Rostron said:

I think that you will find that it is still a breach of copyright and that any advice on how to do it is abetting the breach.

That may depend on the user's location, as copyright laws (especially with respect to "fair use" provisions) may be different in various parts of the world.

[John Rostron]

2 minutes ago, walt.farrell said:

That may depend on the user's location, as copyright laws (especially with respect to "fair use" provisions) may be different in various parts of the world.

Perhaps I over-reacted, but it does pay to err on the side of caution.

John

[LostInTranslation]

1 hour ago, GabrielM said:

Hi @LostInTranslation,

You can try using the FFT Denoise. Iit's generally good for removing patterns, but you would need a larger image not just a cropped portion to get better results. 

Thanks,

Gabe. 

Wow, this is a fantastic function, I had no idea.
I was able to make it way, way better already, but I might have taken it too far and introduced lots of artifacts as mentioned in the second part of the video.

Will try again and be more careful. I am pretty sure I will get it to a point where it is usable.
The whole image is ~2800x2800 pixels now, which is far bigger than I need it. First FFT, then resize should do the trick.