EEDI3CL

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Abstract
Author Asd-g
Version v1.0.0
Download EEDI3CL-1.0.0.7z
Category Deinterlacing
License GPLv2
Discussion

Contents

Description

EEDI3CL is an OpenCL implementation of eedi3. It works by finding the best non-decreasing (non-crossing) warping between two lines by minimizing a cost functional. The cost is based on neighborhood similarity (favor connecting regions that look similar), the vertical difference created by the interpolated values (favor small differences), the interpolation directions (favor short connections vs long), and the change in interpolation direction from pixel to pixel (favor small changes).

This is a port of the VapourSynth plugin EEDI3CL.

Requirements

  • [x64]: AviSynth+
  • Supported color formats: all planar formats (8/10/12/14/16/32bit, Y/YUV/RGB with or without alpha) are supported.


Syntax and Parameters

EEDI3CL (clip input, int "field", bool "dh", int_array "planes", float "alpha", float "beta", float "gamma", int "nrad", int "mdis", bool "hp", bool "ucubic", bool "cost3", int "vcheck", float "vthresh0", float "vthresh1", float "vthresh2", clip "sclip", int "opt", int "device", bool "list_device", bool "info")


clip   =
A clip to process.
It must be in 8..32-bit planar format.


int  field =
Controls the mode of operation (double vs same rate) and which field is kept.
  • -2: = Double rate (alternates each frame), _FieldBased frame property order or if _FieldBased is 0, or missing - AviSynth internal order.
  • -1: Same rate, _FieldBased frame property order or if _FieldBased is 0, or missing - AviSynth internal order.
  • 0 = same rate, keep bottom field
  • 1 = same rate, keep top field
  • 2 = double rate (alternates each frame), starts with bottom
  • 3 = double rate (alternates each frame), starts with top
Default: -1


bool  dh = false
Doubles the height of the input. Each line of the input is copied to every other line of the output and the missing lines are interpolated.
If field=0, the input is copied to the odd lines of the output. If field=1, the input is copied to the even lines of the output.
field must be set to either 0 or 1 when using dh=true.
Default: False


int_array  planes = [0,1,2,3]
Sets which planes will be processed.
Planes that are not processed will contain uninitialized memory.
Default: [0,1,2,3]


float  alpha = 0.2
float  beta = 0.25
float  gamma = 20.0
These trade off line/edge connection vs artifacts created.
alpha and beta must be in the range [0,1], and the sum alpha+beta must be in the range [0,1].
alpha is the weight given to connecting similar neighborhoods. The larger alpha is the more lines/edges should be connected.
beta is the weight given to vertical difference created by the interpolation. The larger beta is the less edges/lines will be connected (at 1.0 you get no edge directedness at all).
The remaining weight (1.0-alpha-beta) is given to interpolation direction (large directions (away from vertical) cost more). So the more weight you have here the more shorter connections will be favored.
Finally, gamma penalizes changes in interpolation direction, the larger gamma is the smoother the interpolation field between two lines (range is [0,inf].
If lines aren't getting connected then increase alpha and maybe decrease beta/gamma. Go the other way if you are getting unwanted artifacts.
Default: alpha = 0.2, beta = 0.25, gamma = 20.0.


int  nrad = 2
int  mdis = 20
nrad sets the radius used for computing neighborhood similarity. Valid range is [0,3].
mdis sets the maximum connection radius. Valid range is [1,40].
If mdis=20, then when interpolating pixel (50,10) (x,y), the farthest connections allowed would be between (30,9)/(70,11) and (70,9)/(30,11).
Larger mdis will allow connecting lines of smaller slope, but also increases the chance of artifacts.
Larger mdis will be slower.
Larger nrad will be slower.
Default: nrad = 2, mdis = 20.


bool  hp = False
bool  ucubic = True
bool  cost3 = True
These are speed vs quality options.
hp=True - use half pel steps, hp=False - use full pel steps. Currently only full pel is implemented and this parameter has no effect.
ucubic=True - use cubic 4 point interpolation, ucubic=False - use 2 point linear interpolation.
cost3=True - use 3 neighborhood cost function to define similarity, cost3=False - use 1 neighborhood cost function.
Default: hp = False, ucubic = True, cost3 = True.


int  vcheck = 2
float  vthresh0 = 32.0
float  vthresh1 = 64.0
float  vthresh2 = 4.0
clip  sclip = undefined 
  vcheck settings:

      0 - no reliability check
      1 - weak reliability check
      2 - med reliability check
      3 - strong reliability check

  If vcheck is greater than 0, then the resulting interpolation is checked for reliability/consistency. Assume
  we interpolated pixel 'fh' below using dir=4 (i.e. averaging pixels bl and cd).

       aa ab ac ad ae af ag ah ai aj ak al am an ao ap
                            eh          el
       ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp
                fd          fh          fl
       ca cb cc cd ce cf cg ch ci cj ck cl cm cn co cp
                gd          gh
       da db dc dd de df dg dh di dj dk dl dm dn do dp

  When checking pixel 'fh' the following is computed:

        d0 = abs((el+fd)/2 - bh)
        d1 = abs((fl+gd)/2 - ch)

        q2 = abs(bh-fh)+abs(ch-fh)
        q3 = abs(el-bl)+abs(fl-bl)
        q4 = abs(fd-cd)+abs(gd-cd)

        d2 = abs(q2-q3)
        d3 = abs(q2-q4)

        mdiff0 = vcheck == 1 ? min(d0,d1) : vcheck == 2 ? ((d0+d1+1)>>1) : max(d0,d1)
        mdiff1 = vcheck == 1 ? min(d2,d3) : vcheck == 2 ? ((d2+d3+1)>>1) : max(d2,d3)

        a0 = mdiff0/vthresh0;
        a1 = mdiff1/vthresh1;
        a2 = max((vthresh2-abs(dir))/vthresh2,0.0f)

        a = min(max(max(a0,a1),a2),1.0f)

        final_value = (1.0-a)*fh + a*cint


    ** If sclip is supplied, cint is the corresponding value from sclip. If sclip isn't supplied,
       then vertical cubic interpolation is used to create it.
Default: vcheck = 2, vthresh0 = 32.0, vthresh1 = 64.0, vthresh2 = 4.0, sclip = not specified.


int  opt = -1
Sets which cpu optimizations to use.
  • -1: Auto-detect.
  • 0: Use C++ code.
  • 1: Use SSE2 code.
Default: -1.


int  device =
Sets target OpenCL device.
Use list_device to get the index of the available devices.
By default the default device is selected


bool  list_device = false
Whether to draw the devices list on the frame.


bool  info = false
Whether to draw the OpenCL-related info on the frame.


Examples

Deinterlace: 

AviSource("Blah.avi")
EEDI3CL(field=1) # single rate TFF
#EEDI3CL(field=3) # double rate TFF

Enlarge by 2x and correct for center shift using Spline36Resize: 

AviSource("Blah.avi")
TurnLeft().EEDI3CL(field=1, dh=true).TurnRight().EEDI3CL(field=1, dh=true)
Spline36Resize(Width(), Height(), src_left=-0.5, src_top=-0.5)


Changelog 

Version      Date            Changes

v1.0.0       2022/11/28      - Initial release


External Links

  • GitHub - Source code repository.



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