User`s manual

Reference: The Advanced Image Correction tools 103
A. Blur: The Blur filters eliminate noise in the parts of the image where
significant color transitions occur. These filters decrease the contrast
between adjacent pixels, making the image appear hazy and out of focus.
Blur smooths out the transitions by lightening pixels next to the hard edges
of defined lines and shaded areas. Blur More produces an effect three or
four times stronger than Blur.
B. Sharpen: The Sharpen filters do the opposite of the Blur filters and increase
the contrast of adjacent pixels, making images appear sharper and more
focused. Both Sharpen and Sharpen More filters improve clarity, with the
Sharpen More filter having a stronger sharpening effect between the two.
C. Edge Enhancement: The Edge Enhancement filter gives greater contrast to
edges. The filter can do this because edges are areas in an image where
gray or color levels change abruptly. It is best to use this tool for improving
geometrical contoured shapes.
Original Edge Enhancement
D. Emboss: The Emboss filter makes a selection appear raised or stamped by
suppressing the color within the selection and then tracing its edges with
black.
Original Emboss