Samsung 400Txn Service Manual page 19

3. Alignment and Adjustments
- Sharpness Part (1)
- Sharpness Part (2)
3-4
Adjust the picture sharpness.
Scaling Filter Sharpness Control - Peaking Y / Peaking UV
This adjusts the sharpness of luminance(Y) and color(UV).
The bigger the number is in the range of 1~127, the clearer
the picture is. The bigger the number is in the range of
128~255, the more natural video is. Too high sharpness may
cause the vivid noise.
Noise Coring Control - Peaking Coring
Display only the sharp large-edge without assuming the small-
edge of the video as a noise and amplifying it.
NonLinear Sharpness Control - Peaking Resion1/2 Threshold, Gain
Divide the frequency area and apply the different Gain for each area rather
than evenly apply the sharpness level over the whole image.
Assign the threshold value to
improve the sharpness.