Canon PowerShot S120 Manual (en)

You can set the same noise reduction level for several images by first 
selecting multiple images in the main window, and then adjusting the 
noise reduction level using the [Reduce luminance noise] and [Reduce 
chrominance noise] sliders.
Setting the same noise reduction level for several images
If [Reduce luminance noise] is set, resolution may be reduced 
along with reduction of noise.
If [Reduce chrominance noise] is set, color bleeding may occur 
along with reduction of noise. 
You can also use this palette to adjust the image sharpness. For 
information on making adjustments, see “Adjusting Image Sharpness” in 
“Editing with the Basic Adjustment Tool Palette” 
Adjusting Image Sharpness