digitalFAQ.com Forum - JVC HM-DSR100U vs. JVC SR-W5U

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Quote:

Originally Posted by Goldwingfahrer (Post 39588)

I meant that I often have films in interlaced here.
Since I have to use first TGMC for filtering in Avisynth.
but in my films there is the image as TFF, I have to proceed differently.
For example, a cutout

Code:

ConvertToYV12(interlaced=true)



TempGaussMC_beta3(2,1,3,0,0,0,Edimode="NNEDI3",nthreads=8,truemotion=true,sharpness=1.75,Sbb=2,SLrad=1,SVthin=0.75,Sovs=2)



LSFmod(strength=50,edgemode=2)

DeHalo_alpha_MT(rx=2.5)



AssumeTFF().SeparateFields().SelectEvery(4,0,3).Weave()

With VDub after Lagarith YUY2
Then, the film is processed in Edius more ... YUV curve .... etc

That is true for interlaced video. You mention "Film" as TFF. Movie film source is not usually interlaced, but I have seen it happen. The animation video I worked with in the post is a mix of telecine and periodically inserted duplicate frames. "TFF", even with telecine, is the field order for the telecined frames in telecined videos from movie film source. I have also seen "BFF" for telecine field order.

The non-animation videos also submitted are interlaced. They were apparently created as non-film, interlaced digital video. But there is a problem with the interlace (line twitter and aliasing on movement), so those two videos have had some kind of bad processing. I haven't had time to work with them yet.

Yes... Films are, actually, "films" and films the television broadcasting stations in progressively have taken up.
However, my customers have taken up these films earlier on VHS tape from cable and were sent analogous.

With films I mean, actually, Consumer films on VHS,S-VHS-C, Hi8 and Betamax, Betacam SP + D9

I have animation video very seldom.

http://www.mediafire.com/download/kk...rfis_Brain.zip

Quote:

Originally Posted by FrostBite (Post 39526)

The JVC SR-V10U has darker playback and has more trouble with older tapes.

IMO the SRV10U is lighter, not darker, and has less contrast overrun at either extreme than the other player. Histograms from both sets of captures show the same. Of course, you have to use the player that handles an individual tape better.

I can't say anything about the "Turbine" videos, not having seen the original. But neither of the IVTC scripts will work on those instructional videos. They're not telecined. Whether the Turbine series are interlaced or not, The "Turbine" video using IVTC2 still has some interlaced-blur frames and several dropped frames.

Power1Test.avi and Power2Test.avi have identcal problems. I worked with PowerTest1, which had better and cleaner color -- better, if you can work past the same chroma screw-up that's in both videos. Look at the images below from PowerTest1 (the same frames in PowerTest2 show the same effects).

Shown below is an odd-numbered field (left), and an even-numbered field (right). What color is the guy's shirt? If it's greenish-tan (left), the shadows are correct because they're just a darker shade of the brighter parts of the shirt. How about the right-hand (even) frame? Looks like all the even fields have that bad coffee spill on the bright parts of the shirt, but the shadows are still greenish. Odd-numbered fields all have consistent color.

http://www.digitalfaq.com/forum/atta...1&d=1440631171

Also in the even-numbered frame (right), note posterization and hard gradient edges between reddish and greenish in the shirt, plus more noise and artifacts in the guy's facial shadows, in the right-hand background, on the right side of the guy's helmet, and on the left background wall.

I prepared a demo of how this noise changes between fields (which in the attached mp4 demo are deinterlaced into full frames). There are 40 frames in the demo, each frame displays for 1 second. The 40-frame sequence plays twice in the demo: Power1_Chroma_Demo.mp4.

The noisy aliasing and line twitter every time the guy's yellow helmet moves won't go away, unless you use filters strong enough to soften and distort everything in the image. There are obvious signs of poor pre-processing for the master tape. The color problems are likely due to improperly cropping and resizing YV12 video, which messed up colors in the even frames.The Even fields look so bad that I deinterlaced, kept only the Odd fields, cleaned maybe half of the motion noise, corrected the mildly green overcast, then encoded as interlaced 29.97fps. See attached Power1.mpg.

I might have noted it before, but most of these samples had bad audio sync. I corrected that in power1.mpg.

Thanks.

From your previous work I'm going to guess that you used "QTGMC" to deinterlace and then SelectOdd() to keep the odd fields in avisynth? Mind sharing the script?

I've tried to use QTGMC in the past but have been unable to get it to work. I get an error along the lines of "mt_makediff: unsupported colorspace. masktools only support planar YUV colorspaces (YV12, YV16, YV24) (QTGMC -3.32.avis, line 776" I've tried to go around it by putting "ConvertToYV12(interlaced=true)" before QTGMC but get laggy video playback.

Quote:

Originally Posted by FrostBite (Post 39690)

Not sure what you mean by laggy playback. QTGMC is a slow filter not designed for real-time playback. It requires YV12, along with a great many other Avisynth plugins. The documentation that ships with most popular Avisynth plugins lists their requirements, settings, support files, etc. NOTE that discarding alternate fields affects motion smoothness. The other choices are (a) leave it interlaced, but that won't fix the out of phase fields that resulted from earlier cropping or bad resizing, or (b) Forget about cleanup and keep the video as-is. You can submit interlaced-as-is to NeatVideo if you like, but you'll get block noise and posterizing after encoding.

Note in the script below that the Crop() must be performed in YUY2 before going to YV12.

Code:

AviSource("Drive:\path\to\PowerTest1.avi")

Crop(10,0,-14,0).AddBorders(4, 0, 4, 0)

ConvertToYV12(interlaced=true)

TComb()

AssumeTFF().QTGMC(preset="medium",sharpness=0.7).SelectOdd()

    # ---- smooth previous processing compression noise --

dfttest(sigma=8)

LSFMod(edgemode=2)

    # ---- smooth & mask hard gradients and posterizing on shaded areas and face ----

GradFun2DBmod(thr=1.8,mask=false)

AddGrainC(1.0, 1.0)

return last

Quote:

Originally Posted by FrostBite (Post 39526)

JVC SR-V10U
https://dl.dropboxusercontent.com/u/.../IronTest1.avi
https://dl.dropboxusercontent.com/u/...PowerTest1.avi

JVC SR-W5U
https://dl.dropboxusercontent.com/u/.../irontest2.avi
https://dl.dropboxusercontent.com/u/...PowerTest2.avi

I think you mixed up the labelling. The "1"s look like they're from the W5U and the "2"s from the V10U.

Difficult to say. All the earlier animations with the heavy red color cast and thicker edge halos were said to be from the W5U.

Quote:

Originally Posted by Goldwingfahrer (Post 39593)

http://www.mediafire.com/download/kk...rfis_Brain.zip

Please attach files to posts. Site Staff will not look at links on Mediafire, as it has been unsafe in the past.
99mb zip files are allowed.

Quote:

Originally Posted by FrostBite (Post 39130)

https://dl.dropboxusercontent.com/u/.../RoboTest1.avi

Please attach files to posts. Although Site Staff will download one-off files from Dropbox, as it is safe, files larger than 99mb are rarely required for samples. Furthermore, Dropbox files disappear, while our attachments do not. The large amount of large files is why I've not participated much in this thread, as my ISP is slow.

The thread looks interesting, but it would take too much of my time. :(

I deleted some files made with copyrighted material.

Quote:

Originally Posted by FrostBite (Post 39978)

I deleted some files made with copyrighted material.

Fair use applies. I use "copyrighted materials" all the time, for the purpose of education. People want to see cartoons and movies, not videos of some stranger's brat. There's nothing for you to worry about.

OP is long gone, but someone else may be interested.

Quote:

Originally Posted by NJRoadfan (Post 38954)

The SR-W5U is going to blow away that DVHS deck. The JVC HM-DSR100U is a first generation SD-only DVHS deck and lacks the Line TBC/DNR found in the later HD capable models. For all intents and purposes, its a standard SVHS playback deck.

Quote:

Originally Posted by msgohan (Post 38956)

That Y/C crosstalk (what sanlyn called dot crawl) is atrocious. I think your S-Video cable is faulty. If you used the same cable for the SR-W5U, I guess the HM-DSR100U unit's S-Video output is busted. Try a capture with composite.

Today I learned that the HM-DSR100U is actually a standard VHS player paired with D-VHS capability (kinda similar to the Mitsubishi HS-HD1100U). It doesn't even have an S-Video input, but does have an S-Video output designed to be used with the D-VHS decoder.

Perhaps the VHS playback is internally processed as composite, and if the S-Video output is used it's just passed through a horrible Y/C separator (notch filter maybe?). Like the way some S-VHS units produce their on-screen menu system.

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