Deen

Revision as of 17:47, 18 May 2014

Description

Deen is a set of assembly-optimised denoisers, like various 3d and 2d convolutions.

Requirements:

- AviSynth 2.5.8 or later

- Progressive input only

- Supported color formats: YV12

- ISSE compatible CPU.

Syntax and Parameters

Deen (clip, string "mode", int "rad", int "thrY", int "thrUV", int "tthY", int "tthUV", float "min", float "scd", string "fcf", bool "borderfix")

string  mode = "c3d"

Choose denoising method:

• "a2d"
• "a3d"
• "c2d"
• "c3d" - (default)
• "w2d"
• "w3d"

Each of the three modes (a, c, w) will take into account pixels around in order to compute the new value. They will

only take pixels that are under the threshold (meaning that they are not too different from the original pixel). Now,

with the 'c' mode, you only make an average of the surrounding pixels ( under the threshold ) in order to calculate

the new pixel. With the 'a' mode, you do the same, but the threshold is reduced with the distance. Which means

that pixels farther will have to be closer to the pixel considered in order to be taken into account. Finally, the mode

'w' changes the weight of a pixel according to its distance from the original pixel. Meaning, instead of averaging

all the surrounding pixels under the threshold, it will use the weight instead. Pixels close to the center will have

a weight of 3 (for example, I don't know exactly the formula), pixels a bit farther a weight of 2, and the farthest

pixels, a weight of 1 (they will count three times less than the closest pixels).

int  rad = 1

Radius.

Range: 1-4 in 3d, 1-7 in 2d

• 1 : 3x3 - (default)
• 2 : 5x5
• 3 : 7x7
• 4 : 9x9
• 5 : 11x11
• 6 : 13x13
• 7 : 15x15

int  thrY = 7

Luma (Y) threshold.

Range: 0 - 255

Higher values blend more.

int  thrUV = 9

Chroma (UV) threshold.

Range: 0 - 255

Higher values blend more.

int  tthY = 4

Temporal Luma (Y) threshold. 3d only.

Range: 0 - 255

int  tthUV = 6

Temporal Chroma (UV) threshold. 3d only.

Range: 0 - 255

float  min = 0.5

Range: 0.0 - 1.0

1.0 = no reduction .. 0.0 = maximum reduction

When using 'a' mode, it's how the threshold is reduced with the raising of the distance

When using 'c', it should do nothing (theoretically - not tested).

When using 'w' mode, it's how the weight of the pixel is reduced when its distance is raising.

float  scd = 9.0

Scene Change Detection:

Threshold over which a 2d mode is used, in order not to have a temporal ghosting with high motion.

Higher values means potentially more ghosting .

string  fcf = ""

Full Control File:

Default is "", which means no fcf. It allows an overriding of the parameters for ranges of frames.

Check demo.fcf.txt in the zip file.

bool  borderfix = false

Undocumented parameter.

Examples

Deen with all default values.

AviSource("Blah.avi")
Deen(mode="c3d", rad=1, thrY=7, thrUV=9, tthY=4, tthUV=6, min=0.5, scd=9.0, fcf="", borderfix=false)

Changelog

2003-08-13 v1.0 beta 1:
 - this is the latest version and includes additional features
 
2003-01-19 beta 2:
 - public release
 - "w3d" not implemented

Archived Downloads

External Links

- avisynth.nl - Documentation for beta 1.
- Doom9 Forum - Discussion about deen beta 1.
- Doom9 Forum - Discussion about naming schemes between beta 1 and 2.
- Doom9 Forum - Documentation for beta 1. Translated by Manao.
- Doom9 Forum - Original discussion about deen beta 1.
- Scintilla's Guide - Extensive documentation for beta 1.
- VideoHelp Forum - Discussion about deen.