I did a quick Workshop (5 minutes), to show the difference made to colour and sharpness.
I used photoshop creative suite and neat image.
unsharpmask - 100%, 1.0 pixels, 0 levels.
Brightness (-10), contrast (+5)
Shadows - Amount 5%, Tonal width 40%, Radius 100 pixels
Highlight - Amount 23%, Tonal width 60%, Radius 75 pixels
Adjustments - colour correction +10, midtone contrast -10
Curves - RGB - input 246, output 238
Noise levels - High - 30, med - -10, low - -5
Noise Reduction Amounts - High - 65%, med - 80%, low - 100%
Sharpening settings - selected Y CR CB & Con
high - 100%, med - 0, low - 0
I hope you find this useful, it took longer to type this note than to do the WS!!!
Have a great weekend, best regards,