How to Fix Patchy Colour with Avisynth?

[themaster1]

hmm yeah you're right it's better with two instances
I guess you're officially doomed, did you piss off a lady lately ?

[VideoFanatic]

..

[VideoFanatic]

Are you female? I had a problem with a video so I was asking how to fix it. What did I do to you to illicit such a response? I expect to hear talk like that elsewhere, not on VideoHelp.com

[jairovital]

This goes to themaster1:
I'm watching this thread to learn a bit more about scripts. I'm trying to duplicate here your scripts.

I'm also trying to see the "study" you put at the bottom of your script:

#ColorYUV(analyze=true)
Histogram(int2mode(1)) # Avec Slider  pour HISTOGRAMME
#Histogram(mode="luma") # mode lumière (npe)
#Greyscale()
#UtoY() # analyse U
#VtoY() # analyse V
#ConverttoYUY2(interlaced=true) # pour VIDEOSCOPE
#VideoScope("both", true, "Y") # pour niveaux lumière
#VideoScope("side", true, "UV") # pour niveaux lumière
#VideoScope("both", true, "U", "V", "UV") # mode avec vectorscope
#VideoScope("both", false, "Y", "Y", "Y") # très interessant ce mode

I got an error about int2mode for Histogram.

Searching other threads I found this:

function int2mode(int index) { return Select(index, "classic", "levels", "color") } #for HISTOGRAM

This is the same function to use here? What does it shows? I got no errors anymore, but I saw no difference, neither Histogram.

May you, please, explain more about that "study"?

[jairovital]

Holygamer, please, calm down. Themaster1 didn't offended you. It was a joke, good mood.
Please, man, decrease your RPM and speed. He was kidding.

[themaster1]

This goes to themaster1:
I'm watching this thread to learn a bit more about scripts. I'm trying to duplicate here your scripts.

I'm also trying to see the "study" you put at the bottom of your script:

#ColorYUV(analyze=true)
Histogram(int2mode(1)) # Avec Slider  pour HISTOGRAMME
#Histogram(mode="luma") # mode lumière (npe)
#Greyscale()
#UtoY() # analyse U
#VtoY() # analyse V
#ConverttoYUY2(interlaced=true) # pour VIDEOSCOPE
#VideoScope("both", true, "Y") # pour niveaux lumière
#VideoScope("side", true, "UV") # pour niveaux lumière
#VideoScope("both", true, "U", "V", "UV") # mode avec vectorscope
#VideoScope("both", false, "Y", "Y", "Y") # très interessant ce mode

I got an error about int2mode for Histogram.

Searching other threads I found this:

function int2mode(int index) { return Select(index, "classic", "levels", "color") } #for HISTOGRAM

This is the same function to use here? What does it shows? I got no errors anymore, but I saw no difference, neither Histogram.

May you, please, explain more about that "study"?

The only ones i use on a day to day basis are:
Histogram(mode="luma") # for noise,grain, blocking anaysis
Histogram(int2mode(1)) # for levels YUV

You must put function int2mode {...} before avisource or mpegsource for instance

Further infos for videoscope can be found here:
http://avisynth.org.ru/docs/english/externalfilters/vscope.htm
for histogram here:
http://avisynth.org/mediawiki/Histogram

[jairovital]

The only ones i use on a day to day basis are:
Histogram(mode="luma") # for noise,grain, blocking anaysis
Histogram(int2mode(1)) # for levels YUV

Yeah! Very interesting. I could see those graphics, but this one is hard to understand:


It is placed at the bottom righ side of this line: (at frame #62)

VideoScope("both", true, "U", "V", "UV") # mode avec vectorscope

May you explain what we're seeing?

Further infos for videoscope can be found here:
http://avisynth.org.ru/docs/english/externalfilters/vscope.htm
for histogram here:
http://avisynth.org/mediawiki/Histogram

Thank you for the links.

[jairovital]

At mediawiki I read:
"The side (purple) graph shows the U-value.
The bottom (green) graph shows the V-value."

But I cannot see how it shows such values in that graphic.
Is it the same understanding of Histogram Color Mode?

[themaster1]

Try to experiment with colorbars if you don't understand

example::
colorbars(width=720,height=480,pixel_type="YV12")
Tweak(0.0,1.0,0,1.0,coring=false)
ConverttoYUY2()
VideoScope("both", true, "U", "V", "UV")

Change the hue value in tweak and you'll see

[jairovital]

Try to experiment with colorbars if you don't understand
.......
Change the hue value in tweak and you'll see

Excellent! It's very clear, now! Thx.

[jagabo]

Try this animation:

Colorbars(width=720,height=480,pixel_type="YV12")
Trim(0,360)
Crop(0,0,-0,320)
Animate(0, 360, "Tweak", 0.0,1.0,0,1.0,false,false,  360.0,1.0,0,1.0,false,false)
ConverttoYUY2()
VideoScope("both", true, "U", "V", "UV")

[jairovital]

Try this animation:

jagabo, your example is awesome! Watching the animate I think I can apply the same to others functions and can see its behaviours. Very nice!

BTW, why colorbar has that loud noise? Is it some frequency of note A or something?

[Gavino]

The only ones i use on a day to day basis are:
Histogram(mode="luma") # for noise,grain, blocking anaysis
Histogram(int2mode(1)) # for levels YUV

You must put function int2mode {...} before avisource or mpegsource for instance

int2mode is only needed if you are using AvsP[Mod] and want a slider to change the histogram mode.
Histogram(int2mode(1)) is the same as Histogram(mode="levels").

why colorbar has that loud noise? Is it some frequency of note A or something?

Yes, it's a test tone (440Hz sine wave - an 'A'), which pulses in the right-hand channel, on and off once per second.
http://avisynth.org/mediawiki/ColorBars

[themaster1]

One thing that is missing in avisynth is a RGB histogram , unless there is one that i'm not aware of ?

[jagabo]

You could build one with ShowRed(), ShowGree(), ShowBlue(), and Histogram().

# assuming a YV12 source
r=ConvertToRGB().ShowRed().ConvertToYV12().Histogram().Crop(width, 0, -0, -0)
g=ConvertToRGB().ShowGreen().ConvertToYV12().Histogram().Crop(width, 0, -0, -0)
b=ConvertToRGB().ShowBlue().ConvertToYV12().Histogram().Crop(width, 0, -0, -0)
StackHorizontal(last,r,g,b)

[themaster1]

Hmm yeah but you gotta agree this kind of graph is not very helpful for the average joe.I'd much rather like a sony vegas-like graph or vub-like (color tools) histogram

Like this: http://imageupload.org/en/file/179594/test.jpg.html

AVISource("D:\MyVideo.avi")
converttorgb32(interlaced=false)
input=last
LoadVirtualdubPlugin("C:\Program Files (x86)\virtualdub1.9\plugins\clrtools.vdf","ctools" ,1)
ctools(0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1)
spline36resize(720,480)
StackHorizontal(input, last)

[jagabo]

Hmm yeah but you gotta agree this kind of graph is not very helpful for the average joe.

Histogram() has a ColorTools-like histrogram mode too. The graphs are really small though.

#assuming YV12 input again
l=Histogram("levels").Crop(width, 0, 256, 72).Subtitle("luma")
r=ConvertToRGB(matrix="PC.601").ShowRed().ConvertToYV12(matrix="PC.601").Histogram("levels").Crop(width, 0, 256, 72).Subtitle("red")
g=ConvertToRGB(matrix="PC.601").ShowGreen().ConvertToYV12(matrix="PC.601").Histogram("levels").Crop(width, 0, 256, 72).Subtitle("green")
b=ConvertToRGB(matrix="PC.601").ShowBlue().ConvertToYV12(matrix="PC.601").Histogram("levels").Crop(width, 0, 256, 72).Subtitle("blue")
StackHorizontal(last,StackVertical(l,r,g,b).AddBorders(0,0,0,height-288))

The source frame height must be at least 288 to use this script. Adjust matrix="" to suit.

[themaster1]

Not bad, but i still prefer the color tools for the simple fact it return numeric values along with the yrgb graphs.

It's about time someone make a dedicated histogram plugin for deep analysis in all modes , something more practical

[VideoFanatic]

Hi, I tried converttoyv12() but it still crashes. As far as I can tell my script is correct, can you see anything wrong with it?:

Mpeg2Source("E:\1\colour test.d2v", CPU=6,info=3)
DeGrainMedian(limitY=2, limitUV=3, mode=1, interlaced=true)
converttorgb32(interlaced=true)
LoadVirtualdubPlugin("C:\Program Files\AviSynth 2.5\plugins\ColorMill.vdf","colormill",1)
colormill(25700, 31076, 21604, 25700, 25700, 25700, 25734, 25700, 25700, 25700, 25700, 25700, 25700, 1124, 5)
LoadVirtualdubPlugin("C:\Program Files\AviSynth 2.5\plugins\Camcorder_Color_Denoise_sse2.vdf","ccd ",1)
ccd(41,1)
LoadVirtualdubPlugin("C:\Program Files\AviSynth 2.5\plugins\ColorMill.vdf","colormill",1)
colormill(25700, 25700, 25700, 25700, 25700, 25700, 25700, 25700, 25700, 25713, 25700, 25700, 25700, 1124, 5)
converttoyv12()
Crop(0,0,0,-14)
Tweak(Bright=-0, Sat=1.5, Cont=1.0, Hue=0.0, Coring=False)
AddBorders(8, 0, 8, 14)

[jairovital]

Hi, I tried converttoyv12() but it still crashes. As far as I can tell my script is correct, can you see anything wrong with it?:

This is your script, as it, running here: (only added Stackvertical)


I think the problem is NOT concerned avs script itself, but something wrong and weird with your system.

[themaster1]

Pure hypothesis:
Perhaps the fact that the .vdf is inside the avisynth plugins folder is confusing avisynth somehow, although i don't see the reason why.
Try to place them elsewhere.

For the crop and addborders you should put something like this imo:
Crop(0,0,0,-16)
AddBorders(8, 8, 8, 8, $000000)

another error spotted:
converttoyv12() should in fact be converttoyv12(interlaced=true)

N.B:
You should only load colormill once but that's not a problem generally to load it several times

[VideoFanatic]

I moved the files into another folder and it didn't make a difference. What does $000000 do?

This is my script. You said I should only load colormill once. Could you please tell me what I should use instead of the following. I tried deleting the red line but it just gave me an error.

Mpeg2Source("E:\1\colour test.d2v", CPU=6,info=3)
DeGrainMedian(limitY=2, limitUV=3, mode=1, interlaced=true)
converttorgb32(interlaced=true)
LoadVirtualdubPlugin("C:\Program Files\AviSynth 2.5\plugins\ColorMill.vdf","colormill",1)
colormill(25700, 31076, 21604, 25700, 25700, 25700, 25734, 25700, 25700, 25700, 25700, 25700, 25700, 1124, 5)
LoadVirtualdubPlugin("C:\Program Files\AviSynth 2.5\plugins\Camcorder_Color_Denoise_sse2.vdf","ccd ",1)
ccd(41,1)
LoadVirtualdubPlugin("C:\Program Files\AviSynth 2.5\plugins\ColorMill.vdf","colormill",1)
colormill(25700, 25700, 25700, 25700, 25700, 25700, 25700, 25700, 25700, 25713, 25700, 25700, 25700, 1124, 5)
converttoyv12()
Crop(0,0,0,-14)
Tweak(Bright=-0, Sat=1.5, Cont=1.0, Hue=0.0, Coring=False)
AddBorders(8, 0, 8, 14)

[themaster1]

I think i have found the root of your problem: the syntax.
Should look like this, without space between cdd & the ":
LoadVirtualdubPlugin("C:\Program Files\AviSynth 2.5\plugins\Camcorder_Color_Denoise_sse2.vdf","ccd",1)
When i paste the code here it add and extra space (Bug ?)so be sure to remove it

Full script:

Mpeg2Source("E:\1\colour test.d2v", CPU=6,info=3)
DeGrainMedian(limitY=2, limitUV=3, mode=1, interlaced=true)
converttorgb32(interlaced=true)
LoadVirtualdubPlugin("C:\Program Files\AviSynth 2.5\plugins\ColorMill.vdf","colormill",1)
colormill(25700, 31076, 21604, 25700, 25700, 25700, 25734, 25700, 25700, 25700, 25700, 25700, 25700, 1124, 5)
LoadVirtualdubPlugin("C:\Program Files\AviSynth 2.5\plugins\Camcorder_Color_Denoise_sse2.vdf","ccd ",1)
ccd(41,1)
colormill(25700, 25700, 25700, 25700, 25700, 25700, 25700, 25700, 25700, 25713, 25700, 25700, 25700, 1124, 5)
converttoyv12(interlaced=true)
Crop(0,0,0,-16)
Tweak(Bright=-0, Sat=1.5, Cont=1.0, Hue=0.0, Coring=False)
AddBorders(8, 8, 8, 8, $000000)

[VideoFanatic]

I already had that script you posted without a space. The forum software added the space!

Could you please tell me the answer to my questions in the previous thread here: https://forum.videohelp.com/threads/343257-How-to-Fix-Patchy-Colour-with-Avisynth?p=214...=1#post2141092

[jagabo]

The last argument to AddBorders is the color -- $000000 is black.

[themaster1]

if this script dont work i dont see man.Try with CPU=0 i get funky color effects with CPU=6

When you open it with Avsp does it work? What error does it return if not

[VideoFanatic]

When I open it in Avsp the video shows without giving an error.

Why do you add black, I thought the borders are already black?

[themaster1]

Ok script's working, case closed (finally!)

borders can be any colors: red, white, dark black (0rgb), lighter black (7rgb) and so on
ex: $101010 (black 16rgb)

[VideoFanatic]

Not quite case closed! The video displays without errors in AvsPmod but it just crashes without error in HC Encoder! That has always been my problem.

Why did you add black when the borders are already black?

[jairovital]

ok script's working, case closed (finally!)

not quite case closed!

Very good!
ROTFL