PSharpen

Abstract
Author	ilpippo80, colours
Version	16/03/2016
Download	pSharpen script
Category	Sharpeners
License
Discussion	Doom9 Thread - Update

Description

pSharpen performs two-point sharpening to avoid overshoot.

Requirements

• AviSynth 2.5.8 or greater
• Progressive input only
• Supported color formats: YV12

Required Plugins

• Average
• MaskTools2

Additional planar colorspaces are supported when using AviSynth 2.6 and corresponding MaskTools2.

Syntax and Parameters

pSharpen (clip clp, int "strength", int "threshold", float "ss_x", float "ss_y", int "dest_x", int "dest_y")

clip   =

Input clip

int  strength = 25

Determines the strength of the sharpening (up until the overshoot correction threshold, see below). Value of 100 will set all pixels to either their local min or max; value of 0 will make the filter do nothing. Range: 0 to 100

int  threshold = 75

Determines how close to the min/max a pixel can be sharpened before the overshoot correction (compression) kicks in. Higher values make the overshoot correction more of a hard limiting, while lower values soften the compression. Value of 0 makes the filter do nothing. Range: 0 to 100

float  ss_x = 1.0

float  ss_y = 1.0

The horizontal and vertical supersampling factors, respectively. Higher values will reduce aliasing, at the expense of speed.

int  dest_x = clp.width()

int  dest_y = clp.height()

Final image size; defaults to the dimensions of the input clip.

Examples

pSharpen with default settings:

AviSource("Blah.avi")
pSharpen(strength=25, threshold=75, ss_x=1.0, ss_y=1.0)

Changelog

Version      Date(D/M/Y)      Changes

             16/03/2016       - Actually make it work when ss_x and ss_y are not both 1
             07/03/2016       - Changed dest_x/dest_y to be ints instead of floats. 
             02/08/2015       - Update to use MaskTools2
             02/07/2005       - Initial public release

External Links

• AquilineStudios - pSharpen additional usage information.

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