defect appeared after applying FastLineDarkenMOD

[adrianmak]

I simply applied FastLineDarkenMOD() without any parameters.

the result is defect on the video

original
http://i108.photobucket.com/albums/n16/adrianmak/Snap4-10.jpg
http://i108.photobucket.com/albums/n16/adrianmak/Snap2-41.jpg

FastLineDarkenMOD applied
http://i108.photobucket.com/albums/n16/adrianmak/Snap3-20.jpg
http://i108.photobucket.com/albums/n16/adrianmak/Snap1-88.jpg

[TheRyuu]

First off, nothing to do with the problem but why are you using a line darkener on a live action source...?

Second, for me to get rid of the green, I just disable thinning since I really don't find any use in it anyway.

fastlinedarkenMOD(thinning=0, strength=50)

But is there really any point to using it on something thats not cartoon/animation/anime?

Edit:
I can't really tell, but is that first picture animated? (hard to tell, in that case fine, use it :))

BTW, were did you get that, and why is it so blocky? (unless it's zoomed or something)

[Didée]

Referring to the FstLineDarkenMOD script that was posted here (http://forum.doom9.org/showthread.php?p=1002189#post1002189):

There's a small error in the script, when thinning is used. Correct is below:

#############################
# FastLineDarken 1.3 MT MOD #
#############################
#
# Written by Vectrangle, last update 12 Sept 04
#
# * requires masktools 1.5.1 -- http://jourdan.madism.org/~manao/
# * requires yv12 input
#
# Usage is FastLineDarken(strength, luma_cap, threshold, thinning),
# named parameters are supported eg FastLineDarken(thinning=0)
#
# Note that you must import this avs into your script using import("...\FastLineDarken.avs")
#
# Parameters are:
# strength (integer) - Line darkening amount, 0-256. Default 48. Represents the _maximum_ amount
# that the luma will be reduced by, weaker lines will be reduced by
# proportionately less.
# luma_cap (integer) - value from 0 (black) to 255 (white), used to stop the darkening
# determination from being 'blinded' by bright pixels, and to stop grey
# lines on white backgrounds being darkened. Any pixels brighter than
# luma_cap are treated as only being as bright as luma_cap. Lowering
# luma_cap tends to reduce line darkening. 255 disables capping. Default 191.
# threshold (integer) - any pixels that were going to be darkened by an amount less than
# threshold will not be touched. setting this to 0 will disable it, setting
# it to 4 (default) is recommended, since often a lot of random pixels are
# marked for very slight darkening and a threshold of about 4 should fix
# them. Note if you set threshold too high, some lines will not be darkened
# thinning (integer) - optional line thinning amount, 0-256. Setting this to 0 will disable it,
# which is gives a _big_ speed increase. Note that thinning the lines will
# inherently darken the remaining pixels in each line a little. Default 24.
#
# Changelog:
# 1.3 - added ability to thin lines, now runs much slower unless thinning=0. Changed the defaults (again)
# 1.2 - huge speed increase using yv12lutxy =)
# - weird darkening issues gone (they were caused by yv12layer)
# - show option no longer available due to optimizations. Use subtract() instead
# 1.1 - added luma_cap option
# 1.0 - initial release
#


function FastLineDarkenMOD( clip c, int "strength", int "luma_cap", int "threshold", int "thinning")
{
## parameters ##
str = string(default(strength, 48) /128.)
lum = string(default(luma_cap, 191))
thr = string(default(threshold, 4))
thinning = default(thinning,24)
thn = string(thinning /16.)

## filtering ##
exin = c.mt_expand().mt_inpand()
diff = mt_lutxy(c,exin,yexpr="y "+lum+" < y "+lum+" ? x "+thr+" + > x y "+lum+" < y "+lum+" ? - 0 ? 127 +",uexpr="x",vexpr="x",u=2, v=2)
linemask= mt_lut(diff.mt_inpand(),"x 127 - "+thn+" * 255 +").mt_convolution("1 1 1","1 1 1",y=3,u=0,v=0)
thick = mt_lutxy(c, exin, yexpr="y "+lum+" < y "+lum+" ? x "+thr+" + > x y "+lum+" < y "+lum+" ? - 0 ? "+str+" * x +",uexpr="x",vexpr="x",u=2, v=2)
thin = mt_lutxy(c.mt_expand(U=2,V=2),diff,yexpr="x y 127 - "+str+" 1 + * +",u=2, v=2)

return (thinning == 0) ? thick : mt_merge(thin,thick,linemask,y=3,u=2,v=2)
}

Note the small red addition near the end of the script. That's all.