Canon PIXMA MG4200 Series On-Screen Manual page 276

Face Sharpener
You can sharpen out-of-focus faces.
Using Face Sharpener
Digital Face Smoothing
You can enhance skin beautifully by reducing blemishes and wrinkles.
Using Digital Face Smoothing
Blemish Remover
You can reduce moles.
Using Blemish Remover
Image Adjustment
You can adjust brightness and contrast, sharpen the entire image, etc.
You can also blur the outline of the subjects or remove the base color.
Adjusting Images