Paintshop Pro>>Channel Mixer

Required: PaintShop Pro
Go through this transformation:

step one

Using the channel mixer is quite easy. All you have to do is go to Layers>>New Adjustment Layer>>Color Balance.

step two

You have to experiment with several colors to which is the right one. You can see a little preview above. In order to get my results I did the following:
Red:
87
46
-53

Green:
4
114
-8

Blue:
33
-14
99

You press "ok" and you're set. n_n Your picture has better quality.