UnsharpHQ

Latest revision as of 19:14, 15 August 2021

[edit] Description

This is a very strong and fast unsharp mask with some new features.

[edit] Requirements

• [x86]: AviSynth+ or AviSynth 2.6 or greater
• [x64]: AviSynth+
• Progressive input only
• Supported color formats: Y8, YV12, YV16, YV24
  • AviSynth+: all planar YUV formats (8/10/12/14/16-bit) are supported.

[edit] Syntax and Parameters

UnsharpHQ (clip, int "THRESHOLD", float "SHARPSTR", float "SMOOTH", bool "SHOW", int "MODE", int "OPT")

clip   =

Input clip.

int  THRESHOLD = 20

The value that determines whether or not to sharpen a pixel based on the luminance change between their neighbors.

Lower values allow more to be sharpened (including noise); higher values allow less but is set to high, small detail will not be sharpened.

Range: 0 to 99

float  SHARPSTR = 4.0

Sharpening strength; values from 2.0 to 10.0 are recommended.

Range: 0.0 up to 99.0

float  SMOOTH = 0.5

The smoothing strength for pixels not being sharpened (mainly flat areas). Set to 0.0 to disable smoothing.

Range: 0.0 to 4.0

bool  SHOW = false

When set to true a green and black mask is shown; useful for finding an optimal value* for THRESHOLD.

Anything in green gets sharpened, anything in black is not sharpened but can be smoothed if SMOOTH is greater than 0.

*optimal value - noise vs detail trade-off. The goal is to try to sharpen as much detail as possible while not sharpening noise.

int  MODE = 0

Operation mode:

• 0 : equivalent to original version.
• 1 : added in mod(threshold, sharpstr, smooth parameter effects are little bit changed in this mode), in this mode, SMOOTH=0 is good choice!

int  OPT = 0

Optimization - 0=auto, 1=C, 2:SSE2, 3:AVX2

[edit] Examples

UnsharpHQ with default settings:

AviSource("Blah.avi")
UnsharpHQ(THRESHOLD=20, SHARPSTR=4.0, SMOOTH=0.5, SHOW=false, MODE=0, OPT=0)

[edit] Changelog

Version      Date            Changes

mod 210309   2021/03/09      - Changes by Asd-g
                             - Builds from @dacebe3
                             - Additional change to pass frame properties in AviSynth+.

mod 200816   2020/08/16      - Changed to Avisynth2.6+.
                             - HBD (8-16 YUV only) support + AVX2 optimization, opt added to parameters.
                             - Intrinsic asm.

mod 190119   2019/01/19      - Fixed loop range.
                             - Changed correction weights from 4 to 8 (this will slightly change the output even in mode0)
                             - Modify correction weights in mode1 so that they become 1 when the difference 
                               between the center point and the neighborhood of 8 is THRESHOLD.

mod 181224   2018/12/24      - Added MODE=1, which modifies something that seems to be wrong 
                               (MODE=0 is compatible with the previous version).

v0.5         2014/01/19      - Released source code under GPLv3
                             - Added parameters THRESHOLD, SMOOTH, and SHOW
                             - Renamed parameter STR to SHARPSTR

v0.4         2011/02/26      - Optimized and more accurate v0.3

v0.3         2011/02/21      - Initial public release

[edit] Archived Downloads

[edit] External Links

• Doom9 Forum - UnsharpHQ discussion.
• GitHub - UnsharpHQmod

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