Forum Need sage advice: capture cards, TBC, VCRs, pulling hair out!
 Ask Question Join / Register FAQ Search Today's Posts Mark Forums Read

#41
04-17-2016, 07:26 PM
 sanlyn Premium Member Join Date: Aug 2009 Location: N. Carolina and NY, USA Posts: 3,648 Thanked 1,274 Times in 978 Posts
Quote:
 Originally Posted by bilbofett Is there any way to avoid the YUV > YV12 conversion at the end of STEP TWO?
YV12 isn't near the end of STEP TWO, it's near the beginning. The video being processed stays in YV12 until the last line move to RGB.

One way to avoid YV12 filters (which is how most of heavy-duty guys work) is to avoid poorly made video that requires all those filters and cleanup. QTGMC also requires YV12. Avisynth functions have been exhaustively tested to make interpolations cleanly, where many NLE's make a mess. Note that ConvertToYV12() and similar functions require certain information (like interlaced true/false). It's advised to capture 4:2:2 analog as 4:2:2 rather than lose color data at the outset and rather than let sloppier capture systems and apps screw the works. Many encoders don't do it so well, either.

DVD and BluRay/AVCHD standard formats are YV12. Does this mean that the super-super digital BluRay you bought at the store has less chroma information per pixel group than the VHS tape you bought 20 years ago? Yes. I'm surprised you didn't mention conversion to RGB, which is more tricky and is where some apps get even more sloppy.

Going from YUY2 to YV12 isn't a problem done properly. If you think it's the same as analog YUY2-to-DV's YV12 for capture, it isn't. More tricky is YV12 to RGB and back again to YV12. There's more precise interpolation with 16-bit processing. The dither plugin upgrades 8-bit video to 16-bit and back again. In the example below, I keep dither plugin files in folders separate from Avisynth's usual filters for loading when needed, depending on whether I'm using Avisynth 2.6 or the older 2.5 with old scripts:

Code:
dppath="D:\Avisynth 2.5\plugins\AVS26\dither\"
Import(dppath+"Dither.avs")
Import(dppath+"mt_xxpand_multi.avs")

Dither_convert_8_to_16()
Dither_convert_yuv_to_rgb(matrix="601",interlaced=false,tv_range=true,cplace="MPEG2",lsb_in=true,output="rgb32")
Or RGB to YUV for encoding:
Code:
Dither_convert_8_to_16()
Dither_convert_rgb_to_yuv(matrix="601",interlaced=false,tv_range=true,cplace="MPEG2",lsb=false,output="YV12")
There are other 16-bit functions and conversions for different pixel arrangements. For example "cplace" specifies the arrangement schema of luma and chroma pixels (MPEG2 and DV are both YUV, but data is arranged differently). Obviously the "interlaced" value is important, as is color matrix. Output to YUV can be "YV12", "YV16", "YV24", "YV411", or "Y8". There are 4 "RGB" choices for YUV->RGB. There are 16-bit dithered versions for denoising, resizing, masking, deblocking, and other stuff.

As I usually do, I used YUY2 filters together, then YV12, then RGB, then got lazy and let VirtualDub do the final RGB->YV12 output. For picky projects I make yet another script to get RGB output from VDub and AfterEffects to YV12 for encoding. Too much jockeying back and forth isn't recommended. Work in one, then the next, and so on. I've worked on many captures that didn't need extensive cleanup. But often you have no choice.

For more info, 53 web pages of discussion about the dither plugin and why it exists begin in post #1 at Color banding and noise removal. Links to the plugin and details for use begin in post #3 in that thread at http://forum.doom9.org/showpost.php?...59&postcount=3.

-- merged --

@bilbofett, you're correct in that ChomaShift and nnedi3 work in YUY2, but RemoveDirt variants and warpsharp won't. So I could have used two of those plugins in YUY2, but would still need YV12 for the others. Later, however, nnedi3 reduces the frame size back to 720x480, when the video is still YV12 after QTGMC. Preference is to upscale/downscale in the same colorspace (I'll have to look up on that one day and see if anyone explains why).

ChromaShift must be used in progressive frames or separated-fields. Progressive is more stable, separate fields can be unperedictable.
 The following users thank sanlyn for this useful post: bilbofett (05-02-2016)
Someday, 12:01 PM
 Ads / Sponsors Join Date: ∞ Posts: 42 Thanks: ∞ Thanked 42 Times in 42 Posts
#42
04-23-2016, 01:30 AM
 lordsmurf Site Staff | Video Join Date: Dec 2002 Posts: 12,419 Thanked 2,288 Times in 1,958 Posts
Quote:
 Originally Posted by sanlyn I received a PM asking ... Forum moderators request that if anyone wants a script for a posted project, please ask to have it appear in the forum. The forum is public, where others come to learn and critique. Readers can't learn from private PM's.
Yes, correct, and thank you.

In fact, I enjoy seeing conversations. I read everything, even if I don't reply to everything immediately (or at all). Although I know a lot, I'm always on the prowl for tips, new techniques, new scripts, etc. And sometimes that comes from this very site!

Quote:
 Originally Posted by bilbofett FYI I just paid for 3-year premium membership.. lordsmurf and "admin" can treat each other to a Big Mac combo meal now
Thanks.

But running sites costs a lot. The backup alone costs $35/monthly. The entire site costs about$300 monthly. And that doesn't include any one-time software or scripts needs for upgrades. Once you hit a certain size, dedicated servers are needed. And these days, DDoS protection as well.

I cook anyway. I've always hated fast food, even as a kid.

- For sale in the marketplace: TBCs, workflows, capture cards, VCRs
 The following users thank lordsmurf for this useful post: bilbofett (05-02-2016)
#43
04-23-2016, 02:52 PM
 bilbofett Free Member Join Date: Mar 2016 Posts: 58 Thanked 0 Times in 0 Posts
Sanlyn, here's round 2 (attached)
sharpness turned down, color seems "better"?
None of your filters applied yet.
Does this initially look like a better capture?

-- merged --

Well, I feel stupid.
I'm not an avisynth expert by any means.

1) To use sanlyn's avs script, I had to install the following plugins from scratch that I didn't have/didn't come with Avisynth:
-TIVTC

-LimitedSharpenFaster

-RemoveDirtMC
(I could only find RemoveDirtMC_SE!, which required: MVTools, RemoveGrainT (confusing installation), RemoveDirt, AvsRecursion (install to \System32 or \Wow64\ only!, FluxSmooth, FFT3DFilter (site offline, couldn't find a copy of the plugin!)

-QTGMC 3.32 AVS(i) script
(which required: MVTools, nnedi3, (which required redistribuable package for Visual Studio 2015 Update 2 and/or and Intel Parallel Studio 2016 redistributables), RemoveGrain

-ChromaShift

-FixVHSOversharp

-GradFun2DBmod.v1.5 (could not find one v1.5!)

A note about your *.avs script: It tries to load/calls for "RemoveDirtMC", I could only find "RemoveDirtMC_SE", should I change all the entries to *_SE"? Also, your script calls for *.avs scripts, but they were all installed as *.avsi, should I rename the files to *.avs, or change the entries inside the script to *.avs? And do I need to modify those called scripts internally too, ie. LimitedSharpenFaster, QTGMC-3.32, removedirtmc_se, and GradFun2DBmod.v1.5?

2) I was also confused as to what I install to the root folder of avisynth, what I install to the plugins folder, and what I install to c:\windows\system32 or \syswow64 (dlls vs avs/avsi)

3) So far the two errors I'm left with are: "Import: couldn't open "C:\Program Files (x86)\AviSynth\plugins\avsfilter.vdf.avs" and then it waits a bit and says "Avisynth open failure: Script error: Invalid arguments to function "RemoveDirtMC_se" (c:\testavs.avs, line 15), which reads: "RemoveDirtMC_se(20,false)"

4) Sorry for the amateur response. I know its poor. I've been trying. I've been plugging away at this all day. It's a mess.

Attached Files
#44
04-23-2016, 06:44 PM
 lordsmurf Site Staff | Video Join Date: Dec 2002 Posts: 12,419 Thanked 2,288 Times in 1,958 Posts
- .vdf is a VirtualDub filter.
- .avs files are almost never in the plugins directory -- just dll and avsi.
- You can't just rename a filter's filename.
- I don't know what script you're trying to load. Post it here in 'code' bbcode blocks.

- For sale in the marketplace: TBCs, workflows, capture cards, VCRs
 The following users thank lordsmurf for this useful post: bilbofett (05-02-2016)
#45
04-23-2016, 06:48 PM
 bilbofett Free Member Join Date: Mar 2016 Posts: 58 Thanked 0 Times in 0 Posts
Quote:
 Originally Posted by lordsmurf - .vdf is a VirtualDub filter. - .avs files are almost never in the plugins directory -- just dll and avsi. - You can't just rename a filter's filename. - I don't know what script you're trying to load. Post it here in 'code' bbcode blocks.
See post #39 in this thread.

His script calls for *.avs files, not *.avsi
example:
Import("D:\Avisynth 2.5\plugins\RemoveDirtMC.avs")
Import("D:\Avisynth 2.5\plugins\QTGMC-3.32.avs")
Import("D:\Avisynth 2.5\plugins\LimitedSharpenFaster.avs")
#46
04-23-2016, 07:00 PM
 lordsmurf Site Staff | Video Join Date: Dec 2002 Posts: 12,419 Thanked 2,288 Times in 1,958 Posts
I'm actually curious why sanlyn is still using the old "loadplugin" scripting. That's not been needed in years.

- For sale in the marketplace: TBCs, workflows, capture cards, VCRs
 The following users thank lordsmurf for this useful post: bilbofett (05-02-2016)
#47
04-23-2016, 07:03 PM
 bilbofett Free Member Join Date: Mar 2016 Posts: 58 Thanked 0 Times in 0 Posts
Quote:
 Originally Posted by lordsmurf I'm actually curious why sanlyn is still using the old "loadplugin" scripting. That's not been needed in years.
What is the updated syntax please?
#48
04-23-2016, 07:06 PM
 lordsmurf Site Staff | Video Join Date: Dec 2002 Posts: 12,419 Thanked 2,288 Times in 1,958 Posts
Updated = not use it at all, as Avisynth senses existent avsi and dll files.

- For sale in the marketplace: TBCs, workflows, capture cards, VCRs
 The following users thank lordsmurf for this useful post: bilbofett (05-02-2016)
#49
04-23-2016, 07:09 PM
 bilbofett Free Member Join Date: Mar 2016 Posts: 58 Thanked 0 Times in 0 Posts
Quote:
 Originally Posted by lordsmurf Updated = not use it at all, as Avisynth senses existent avsi and dll files.
I don't know how to use his syntax to call *.avs files when they are called *.avsi, and the names of what I found don't match what his script calls for, sorry for the hassle
#50
04-23-2016, 07:11 PM
 lordsmurf Site Staff | Video Join Date: Dec 2002 Posts: 12,419 Thanked 2,288 Times in 1,958 Posts
An avsi is a scriptlet, and not a full script.

- For sale in the marketplace: TBCs, workflows, capture cards, VCRs
 The following users thank lordsmurf for this useful post: bilbofett (05-02-2016)
#51
04-23-2016, 07:17 PM
 bilbofett Free Member Join Date: Mar 2016 Posts: 58 Thanked 0 Times in 0 Posts
Quote:
 Originally Posted by lordsmurf "import" isn't "loadplugin". An avsi is a scriptlet, and not a full script.
Right, but his *.avs script calls for *.avs, not avsi. You said not to rename them.
How can I remedy this please?

So I should or should not use "import" as opposed to "load" ?

I said to sanlyn: "A note about your *.avs script: It tries to load/calls for "RemoveDirtMC", I could only find "RemoveDirtMC_SE", should I change all the entries to *_SE"? Also, your script calls for *.avs scripts, but they were all installed as *.avsi, should I rename the files to *.avs, or change the entries inside the script to *.avs? And do I need to modify those called scripts internally too, ie. LimitedSharpenFaster, QTGMC-3.32, removedirtmc_se, and GradFun2DBmod.v1.5?"
#52
04-23-2016, 11:04 PM
 bilbofett Free Member Join Date: Mar 2016 Posts: 58 Thanked 0 Times in 0 Posts
sanlyn and lordsmurf, after about 13+ hours on this, I got it working. Not even sure what I did.
I'm exhausted.
#53
04-24-2016, 06:01 AM
 sanlyn Premium Member Join Date: Aug 2009 Location: N. Carolina and NY, USA Posts: 3,648 Thanked 1,274 Times in 978 Posts
Nice going, glad you worked it out. It would be better if I fix up the posted script -- which I see had a couple of lines of code from my own copy that I should have deleted from the post. And didn't realize you don't have any of the plugins.

When there are a dozen versions of filters like RemoveDirtMC, with similarly named internal functions, and you have multiple versions in your plugins folder, you can name them .avs files instead of living with oddball behavior if they're all named avsi. RemoveDirt itself, the basis of RemoveDirtMC, RemoveDirtMC_SE2, RemoveDirtMC_2X, et al, comes in several incarnations. There's another version called RemoveSpotsMC that internally uses similar function names and yet another version of the base RemoveDirt function. To add to the confusion, RemoveDirt itself requires a version of RemoveDirt dll. The basic problem is that RemoveDirt was designed as both a scripted function and a dll with the same name. Users couldn't change the .dll, but they came out with all kinds of scripted "RemoveDirt" text versions. MAny of the RemoveDirtMC versions internally call a function named "TemporalDeGrain" -- which sad to say is the same name as a popular avsi plugin about 200 lines long. The original "MC" version was renamed "MC-SE2" with renamed internal functions to prevent conflicts.

And so on, with multiple versions of other stuff. Plus old archived scripts that won't run in Avisynth 2.6. Etc., etc., etc.

Will update later today.

Last edited by sanlyn; 04-24-2016 at 06:30 AM.
 The following users thank sanlyn for this useful post: bilbofett (05-02-2016)
#54
04-24-2016, 12:52 PM
 sanlyn Premium Member Join Date: Aug 2009 Location: N. Carolina and NY, USA Posts: 3,648 Thanked 1,274 Times in 978 Posts
Quote:
 Originally Posted by bilbofett Well, I feel stupid
Not as stupid as I did, first time around. Kicking and screaming all the way, too. We've been there.

Quote:
 Originally Posted by bilbofett nnedi3, (which required redistribuable package for Visual Studio 2015 Update 2 and/or and Intel Parallel Studio 2016 redistributables
I must have installed a dozen VStudio and VC+ support files. Painful. It's almost enough to make you stay away from plugin updates.

Quote:
 Originally Posted by bilbofett they were all installed as *.avsi, should I rename the files to *.avs, or change the entries inside the script to *.avs? And do I need to modify those called scripts internally too, ie. LimitedSharpenFaster, QTGMC-3.32, removedirtmc_se, and GradFun2DBmod.v1.5?
I'm posting a new script. Make them all ".avsi". I explain about "avs" below. Don't change the coding inside avs and avsi scripts.

Quote:
 Originally Posted by bilbofett 2) I was also confused as to what I install to the root folder of avisynth, what I install to the plugins folder, and what I install to c:\windows\system32 or \syswow64 (dlls vs avs/avsi)
Plugins don't belong in the Avisynth root. Put them in the plugins folder. The instruction that comes with the QTGMC plugins pack (and FFT3D) tells you to copy fftw3.dll and libfftw3f-3.dll into SYSWOW64.They are Windows system files, not Avisynth plugins. They're 32-bit and used by several plugins.

- dll's load automatically as needed.
- avsi's load automatically as needed.
- avs plugins must be imported explicitly with the Import() function.

So let's make some changes.......

This is from the earlier STEP TWO script:

Code:
               #### STEP TWO ####
####----  test & tweak STEP ONE workfile.   ---####
####-------------------------------------------####
Import("D:\Avisynth 2.5\plugins\RemoveDirtMC.avs")
Import("D:\Avisynth 2.5\plugins\QTGMC-3.32.avs")
Import("D:\Avisynth 2.5\plugins\LimitedSharpenFaster.avs")
See those lines in blue? You'll be using all avsi versions of the same plugins, so just delete those three lines. I'm posting a revised STEP TWO script below.

If you called for RemoveDirtMC_SE instead of RemoveDirtMC, that's why you saw an error message. The parameter values for RemoveDirtMC don't work with the SE version. I never saw anybody use RemoveDirtMC_SE.

If you try older cleanup scripts and routines such as from John Meyer or Didee or authors that use RemoveDirtMC, you'll have to change all their scripts because they don't call the SE version. I'm attaching a .zip file with the original RemoveDirtMC.avsi. You can have both of the following files files in your plugins:
- RemoveDirtMC.avsi
- RemoveDirtMC_SE.avsi
Each has different internal function and routine names, so both can exist in the same folder. If your script calls for "RemovedirtMC" Avisynth will pick the one it needs. In my case I have so many versions of RemoveDirt that I keep them as .avs files and use "import" explicitly. Your folder is probably newer without all the old-timers that I have and still use.

GradFun2dbMOD is in my system as avsi because it doesn't conflict with anything older (*yes, there are older versions of it). It's called by other big plugins -- notably, it's required for MCTemporalDenoise ("MCTD"). Like QTGMC, MCTD uses a bunch of support files, some of which are also used by QTGMC.

I have three versions of QTGMC, old and new: 3.31, 3.32, and 3.33. So I keep them as .avs files and Import the one I need. Usually it's 3.32.

The new STEP TWO replaces the slow nnedi3 resize routine with DeHalo_Alpha, which I included in the .zip along with LimitedSharpenFaster.avsi. DeHalo_Alpha can also be used with MCTD using a special parameter.

New STEP TWO (the nnedi3 resize has been removed):

Code:
               #### STEP TWO ####
####----  test & tweak STEP ONE workfile.   ---####
####-------------------------------------------####

####-- Change path and filename for your system  --####
AviSource("drive:\path\to\STEP ONE\output file\filename.avi")

FixVHSOversharp(20,16,12)
FixVHSOversharpL(30,12,8)
FixVHSOversharpL(20,12,8)
ChromaShift(L=-4,C=-4)

ConvertToYV12(interlaced=false)
RemoveDirtMC(20,false)

####-- QTGMC progressive mode InputType 2  --####
QTGMC(InputType=2,preset="slow",sharpness=0.8)
DeHalo_Alpha()
mergechroma(aWarpSharp2(depth=30))
LimitedSharpenFaster(edgemode=2)

####----  Prepare for VirtualDub work.   ---####
ConvertToRGB32(matrix="Rec601",interlaced=false)
return last
The attached .zip contains three subfolders, one each for the 3 plugins. Don't unzip it in your plugins folder. Download and unzip to a folder you create for the .zip, because it contains additional documentation and web links. All you need in your Avisynth plugins are the avsi's. The three subfolders are for these plugins:
- DeHalo_Alpha_MT2.avsi
- LimitedSharpenFaster.avsi
- RemoveDirtMC.avsi

The name of the actual function in DeHalo_Alpha_MT2.avsi is DeHalo_Alpha, so just call it spelled "DeHalo_Alpha" as in the posted script. The "MT2" of the file name is just a version name.

Attached Files
 The following users thank sanlyn for this useful post: bilbofett (05-02-2016)
#55
04-24-2016, 08:37 PM
 bilbofett Free Member Join Date: Mar 2016 Posts: 58 Thanked 0 Times in 0 Posts
Thanks sanlyn.. to start out:

1) Why did you change the settings for "ChromaShift(L=-4,C=-4)" from "(C=-2)" and merge two lines entries into 1 line?

2) I see you also changed the line "LimitedSharpenFaster(edgemode=2)" and removed the "(strength=75," parameter?

4) and moved the "mergechroma" line?

5) And changed the QTGMC settings from "medium" to "slow" and the sharpness from "0.7" to "0.8"?

6) Also, the first line: "AssumeTFF().TFM().TDecimate()", what do you think about doing a bob/weave, where we process separate fields, and then later weave it back into one at the end,.. better/same/worse quality as a de-interlace?

7) Any chance we can add those lines from your dither script earlier? Maybe convert to 16-bit near the beginning, and then dither back down to 8 near the end?

8) Also, did you check out my newly uploaded new-capture in post #44 above? sharpness turned down, color seems "better"? Does this initially look like a better capture? Do you think the same chroma corrections still apply now?
"The left-hand original shows shows such junk as the halos, but also fine grungy stuff in skin tones, green color bleed into skin tones (the guy's hairline and hand on the right), downward red shift on his shirt color, and both people have what looks like clinical cases of sunburn. Not sun tan, sun burn. Suntan is tannish, sunburn is pink. Black-green hair is annoying, too.I couldn't stand it -- had to work on color a bit. The woman has brown eyes."
-I did make a change to the 'HSV Adjust' portion of your VDub filter setting, the hue was too green for this cap (but it worked well on the previous cap)

9) I've installed/fixed and made the script changes you recommended, so we went from 1fps to 7fps!

P.S. here's a screen cap from another scene.. I don't know what the heck that is.. chroma ghosting on the chin?!
http://i.imgur.com/71R8eGs.jpg

Attached Images

Last edited by bilbofett; 04-24-2016 at 08:41 PM. Reason: pizza!!
#56
04-24-2016, 09:17 PM
 lordsmurf Site Staff | Video Join Date: Dec 2002 Posts: 12,419 Thanked 2,288 Times in 1,958 Posts
@sanlyn,

Notice that I added .avsi to the forum attachments MIME settings. So you can attach avs and avsi both independently, zip not required. That's often what I do.

.dll is too dangerous to be allowed on the server, so that one is still zip only.

- For sale in the marketplace: TBCs, workflows, capture cards, VCRs
 The following users thank lordsmurf for this useful post: bilbofett (05-02-2016), sanlyn (04-25-2016)
#57
04-24-2016, 11:05 PM
 sanlyn Premium Member Join Date: Aug 2009 Location: N. Carolina and NY, USA Posts: 3,648 Thanked 1,274 Times in 978 Posts
Quote:
 Originally Posted by bilbofett 1) Why did you change the settings for "ChromaShift(L=-4,C=-4)" from "(C=-2)" and merge two lines entries into 1 line?
You could still use the two Chromashift lines in two places, it would be the same effect. In the first script the C=-2 was added at the last minute. "L=-4" means to move displaced chroma upward 4 pixels. "C=-2" means move displaced chroma 2 pixels to the left. But some areas seemed to require moving 2 pixels further left. It won't be perfect. The chroma shift looks different in different places.

Quote:
 Originally Posted by bilbofett 2) I see you also changed the line "LimitedSharpenFaster(edgemode=2)" and removed the "(strength=75," parameter?
The image seemed to me to need more sharpening of detail between edges, the edges not so much. The default sharpening "strength" value is 150 if you don't specify anything else.

Quote:
 Originally Posted by bilbofett 4) and moved the "mergechroma" line?
That line uses awarpsharp2 to sharpen color edges and assist in reducing chroma bleed effects. It was originaly called after nnedi3 resized the frames by 2x. Since nnedi3 isn't used in the new version (it really didn't do that much at reducing line ripple or twitter, and it softened the image too much), I decided to let a slower QTGMC try a swing at it. After QTGMC, the awarapsharp2 step looked more effective to me.

Quote:
 Originally Posted by bilbofett 5) And changed the QTGMC settings from "medium" to "slow" and the sharpness from "0.7" to "0.8"?
nnedi3 upsize and downsize didn't seem to stop motion noise as much as a slower QTGMC did. Slower QTGMC settings do more cleanup than faster presets. The lower the sharpness value, the less QTGMC will sharpen (default is 1.0). 0.7 to 0.8 makes a slight difference, more of a general "impression".

Quote:
 Originally Posted by bilbofett 6) Also, the first line: "AssumeTFF().TFM().TDecimate()", what do you think about doing a bob/weave, where we process separate fields, and then later weave it back into one at the end,.. better/same/worse quality as a de-interlace?
The video isn't interlaced. It's telecined. Inverse telecine isn't the same as deinterlacing. 3 of every 5 fields are essentially progressive, 2 of every 5 behave as interlaced. If you bob or separate fields with telecined video you'll have duplicate images, not different ones. Perhaps you're confused about using QTGMC as a denoiser and motion smoother in this script. QTGMC in progressive mode is for progressive video, not interlaced video. After inverse telecine, the video is purely progressive at 23.976 fps.

Quote:
 Originally Posted by bilbofett 7) Any chance we can add those lines from your dither script earlier? Maybe convert to 16-bit near the beginning, and then dither back down to 8 near the end?
That would be nice but would take forever. For 16bit you have to have filters that work with 16bit data. Most filters work 8-bit data. High bit dithering won't help much with many operations. The dither package has a few dozen specific 16-bit functions, also a dithering version of dfttest.dll which isn't like the "normal" 8-bit dfttest.dll. Both have the same name but you can't keep both dll's in the same plugin folder.

The dither toolset includes 2 avsi's, 2 dll's, 16-bit mods of dfttest and masktools2, and a few more optional modded plugins. The download package has a big html Help file. A web version of the help file with function listing and examples is here: http://avisynth.nl/index.php/Dither_tools. The doom9 thread and latest download news are here: http://forum.doom9.org/showpost.php?...59&postcount=3.

I have the new video and image, and will look them over.
 The following users thank sanlyn for this useful post: bilbofett (05-02-2016)
#58
04-25-2016, 11:36 AM
 sanlyn Premium Member Join Date: Aug 2009 Location: N. Carolina and NY, USA Posts: 3,648 Thanked 1,274 Times in 978 Posts
Quote:
 Originally Posted by bilbofett P.S. here's a screen cap from another scene.. I don't know what the heck that is.. chroma ghosting on the chin?! http://i.imgur.com/71R8eGs.jpg
That's some bad ghosting, but any number of things could cause it. Maybe post a short piece from that scene? I'll say one thing, it's a pretty sloppy transfer, even for retail.

Quote:
 Originally Posted by bilbofett 8) Also, did you check out my newly uploaded new-capture in post #44 above? sharpness turned down, color seems "better"? Does this initially look like a better capture? Do you think the same chroma corrections still apply now?....... ........... -I did make a change to the 'HSV Adjust' portion of your VDub filter setting, the hue was too green for this cap (but it worked well on the previous cap)
Color's better. Yes, different levels can cause color corrections to look a little different. Sometimes you can sue the same settings, sometimes you have to adjust. VHS is a nightmare.

However, the ATI is clipping blacks. I stopped to look back over some old threads here and elsewhere using that card, and the Hauppauge and Pinnacle USB's, They all do the same thing. In good conscious,, I can't recommend the card. I'll have to go back and eat dirt in numerous posts. I should test this stuff myself (and I will, too. I ordered two cheap USB capture devices today to see what they do). I should know better and trust my own instincts.

The clipping is complicated because it seems to happen before the signal gets to VirtualDub. Below is a frame from the earlier ul1_avi, with no color corrections. Two white arrows in the image point to areas where darks are being clipped and produce patches of muddy junk. In the lower arrow, clipping makes darks turn reddish. Not easy to see in the ul1 because it's too dark to begin with. The white arrow on the right shows the clipping at y=16, which includes the black borders.

Below is the same frame from your sgan4.avi post. Clipping effects are easier to see here because the image was brightend during capture. A small bit of detail in the hair was retrieved, but so was the hard clipping. The histogram shows the same clipping point including black borders. You can see that even though darks were brightened, clipping still occurs. The upper clipping turns darks green, the lower has red discoloring.

There are other recommendations around, and msgohan might have some ideas. But before I ever recommend a budget card I'll use it myself.

A possible workaround is to use your AVT-0871 proc amp controls to brighten the image before it gets to the USB. The Brightness button controls blacks, the Contrast button controls brights. You should check the results in VDub's capture histogram. Use the "Crop" menu in capture to remove black borders so they won't throw you off. The core image-only content shouldn't produce a sharp, narrow left-hand spike in the histogram or flow into the red areas. You can tweak levels later after capture but you'd have to do that anyway. Once you get a more workable levels setting from the AVT, it'll probably work for most captures.

Try another tape. The one you're working with now has too many problems for a test. The discoloring could very well be in the original.

I'll be waiting to see what Amazon delivers in a couple of days.

Attached Images
 The following users thank sanlyn for this useful post: bilbofett (05-02-2016)
#59
04-26-2016, 01:00 AM
 lordsmurf Site Staff | Video Join Date: Dec 2002 Posts: 12,419 Thanked 2,288 Times in 1,958 Posts
Quote:
 Originally Posted by sanlyn That's some bad ghosting

- For sale in the marketplace: TBCs, workflows, capture cards, VCRs
 The following users thank lordsmurf for this useful post: bilbofett (05-02-2016)
#60
05-02-2016, 10:34 PM
 bilbofett Free Member Join Date: Mar 2016 Posts: 58 Thanked 0 Times in 0 Posts
Sanlyn lordsmurf msgohan thank you for all your awesome help!
Re: ATI USB-600 Capture card clipping black? (see post #58 above)
I'm providing several examples in the attachments.

Notes:
1) I used the 'DVE HD Essentials blu-ray calibration' disc S-video out from my blu-ray player into either:
the Panasonic AG1980 S-Video (VCR) -> ATI USB600 (CapCard)
*or*
-> AVT-8710 (TBC) -> Panasonic 1980 S-Video (VCR) -> ATI USB600 (CapCard).

File Breakdown:
2) "Simple Color Bars-Thru 8710 TBC-DEFAULT.avi" = the 8710's color bars through ATI-USB600 DEFAULT ProcAmp settings.
ATI
brightness 110
contrast 32
hue 64
saturation 32
sharpness 2
*all are default*

8710
*all default*

3) "Simple Color Bars-Thru 8710 TBC-CALIBRATED" = the 8710's color bars through my CALIBRATED ATI-USB600 ProcAmp settings.
ATI
brightness 108
contrast 32
hue 62
saturation 32
sharpness 1

8710
color +2 from 0
bright -2 from 0
contrast +3 from 0
all else default

4) "Adv Color Bars-DEFAULT.avi" = Blur-ray disc output w/all ProcAmp/8710 settings DEFAULT.

5) "Adv Color Bars-CALIBRATED.avi" = Blur-ray disc output w/all ProcAmp/8710 settings CALIBRATED.

4) Uploaded and attached in the next 2 posts 61-62 below are 5 commercially produced VHS examples where I tried to find a variety of 'blacks' on screen
(ex1.avi thru ex5.avi), with all the same settings as "SGAN4.avi" you cited in post #58 above (ProcAmp+8710 calibrated)
Interlaced, 704x472 (cropped), 29.97, Lagarith codec.

Attached Files

Last edited by bilbofett; 05-02-2016 at 11:33 PM. Reason: pizza

 Similar Threads Thread Thread Starter Forum Replies Last Post Tomas84 Restore, Filter, Improve Quality 27 02-08-2018 09:12 PM rocko Capture, Record, Transfer 3 06-23-2011 01:57 AM kpmedia Capture, Record, Transfer 0 06-16-2011 05:44 PM JonathanEntertainment Capture, Record, Transfer 3 02-24-2008 10:45 AM Tom_n_Jonna Capture, Record, Transfer 6 09-26-2005 07:32 AM