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here is the psd

https://www.dropbox.com/s/bpdkafb4tqeqmzk/milet.psd?dl=0

you can see how I came to this result by clicking the layers vissible one by one

I started with 'curves 1 adjustment layer' followed by curves 2 + 3 + 4

but that took too much time

than I made a new layer 5 with mode on 'soft light' and used white brush on the darkest parts of the pattern

and repeated this with layer 6+7+8+9

I merged all in a new layer and used healing brush to clean the image