Remove logo

[maudit]

Hi, I'd like to remove this logo.

https://www.dropbox.com/s/1kypjoib4khn8yn/delogo.png?dl=0

This is the sample: https://www.dropbox.com/s/6voklfwqi942s1u/I%20viaggiatori%20della%20sera_20220422_0405...sample.ts?dl=0

I've some written notes on about to use a certain procedure,, this one:

InpaintDelogo

- first it is needed to draw a mask to match the logo borders, using this command:
InpaintLoc(Loc="622,472,-62,-36")

- Include 10(no less) - 16 pixel borders around the logo.
InpaintLoc(Loc="606,456,-46,-20")

- then create the mask with this command:
InpaintDelogo(mask="D:\mask.bmp", Automask=1, aMix=0, Loc="606,456,-46,-20", Mode="Deblend", Analyze=2)

- add final command to the script
InpaintDelogo(mask="D:\mask.bmp", Automask=0, aMix=0, Loc="606,456,-46,-20", Mode="Deblend")

Script:

LoadPlugin("C:\Users\antip\Desktop\util\MeGUI-2913-64\tools\ffms\ffms2.dll")
FFVideoSource("C:\Users\\TS\ cutted.ts", fpsnum=25, fpsden=1, threads=1)

#PAL  16:9  720 x 576 16:11 ITU ON

crop(0,2,-0,-0)
bbmod(2,0,2,2,128,8)
Trim(80313,84058)

#InpaintLoc(Loc="606,456,-46,-20")
#InpaintDelogo(mask="C:\Users\\mask\mask.bmp", Automask=1, aMix=0, Loc="606,456,-46,-20", Mode="Deblend", Analyze=2)
InpaintDelogo(mask="C:\Users\\mask\mask.bmp", Automask=0, aMix=0, Loc="606,456,-46,-20", Mode="Deblend")

Prefetch(7)

I've tried this procedure one time only and I remember although it was effective on still frames, some logo shadows, remnants were still visible,
especially on dark scenes when I played the file, so the final result wasn't so good.

masks: https://www.dropbox.com/sh/ot6tqqaej66kkp5/AAAHZyofePJuVVKay1_Frdx1a?dl=0


What I would like to ask is:
is this procedure correct? Can it be improved?
How many pixels around the logo I should keep, 16 is fine? more, less?
Do you know some other better commands/procedures?
Any help is appreciated.


edit: first try, the logo is still visible sometimes and I don't know why the video is stuttering:
https://www.dropbox.com/s/n9wqvnyi41qykl8/1%20try%20-%20606%2C456%2C-46%2C-20%20.mkv?dl=0


new script

LoadPlugin("C:\Users\antip\Desktop\util\MeGUI-2913-64\tools\ffms\ffms2.dll")
FFVideoSource("C:\Users\\cutted.ts", fpsnum=25, fpsden=1, threads=1)

#PAL  16:9  720 x 576 16:11 ITU ON


crop(0,2,-0,-0)
bbmod(2,0,2,2,128,8)
Trim(60000,100000).SelectRangeEvery(400,50)

#InpaintLoc(Loc="602,452,-42,-16")
#InpaintDelogo(mask="C:\Users\mask\mask.bmp", Automask=1, aMix=0, Loc="602,452,-42,-16", Mode="Deblend", Analyze=2)
#InpaintDelogo(mask="C:\Users\\mask\mask.bmp", Automask=0, aMix=0, Loc="602,452,-42,-16", Mode="Deblend")

Prefetch(7)

trying to make a slightly bigger mask, 20+px... InpaintLoc(Loc="602,452,-42,-16"), and adding more scenes..
this one seems much better, I don't see any big artifacts but somtimes the logo borders are visible and,
anyway the video is stuttering again, can't understand what's the problem..
https://www.dropbox.com/s/uc2otzhqx7403ei/test%202%20-%20602%2C452%2C-42%2C-16.mkv?dl=0


test3: https://www.dropbox.com/s/mjgo10kk03upy0v/test%203.mkv?dl=0
same settings as the test2 on other scenes, the logo artifacts are barely visible, quite acceptable, but can be done better?

help please.

[VoodooFX]

I can't check stuff without the full video [sound not needed].

Some notes:
Analyze=2 is default, so you adding it or removing it at some lines have same effect.
"Masks" you shared are not the masks.
Why you are doing some weird trims before InpaintDelogo?
Prefetch should be used only for encoding, not for masks creation.
Stuttering: could be FFVideoSource, try LWLibAvVideoSource, it should be frame accurate.

How many pixels around the logo I should keep, 16 is fine? more, less?

It's fine.

[maudit]

Some notes:
Analyze=2 is default, so you adding it or removing it at some lines have same effect.
"Masks" you shared are not the masks.
Why you are doing some weird trims before InpaintDelogo?
Prefetch should be used only for encoding, not for masks creation.
Stuttering: could be FFVideoSource, try LWLibAvVideoSource, it should be frame accurate.

ok, I'm gonna remove the Analyze parameter. thx
I was trimming cause create the full length mask was taking ages, it was just a try. I now know it is needed the full mask process.
anyway I did it on the full movie and the masks now are these:
https://www.dropbox.com/sh/ot6tqqaej66kkp5/AAAHZyofePJuVVKay1_Frdx1a?dl=0
plus a very long txt file.

Should I redo the masks without the Prefetch line then?
If I'll get stuttering again, I'll try with that LWLibAvVideoSource(), never tried before, doesn't even never heard of it.

thx voodoo very appreciated

[VoodooFX]

Should I redo the masks without the Prefetch line then, now?

Of course. Delete all "mask" files created with Prefetch, before doing it.

mask was taking ages

Probably because of Prefetch.

If I'll get stuttering again, I'll try with that LWLibAvVideoSource(), never tried before, doesn't even never heard of it.

https://github.com/HomeOfAviSynthPlusEvolution/L-SMASH-Works/releases/
Use it to do masks too: LWLibAvVideoSource("C:\Users\cutted.ts")
Copy plugins to your Avisynth's plugins folder so you don't need to add "LoadPlugin" to scripts.

[maudit]

ok, I'll redo masks.

I've not fully understood that LWLibAvVideoSource part, anyway I think I already have an L-smash.dll 15MB sized into the avisynth plugin folder.
anyway about the stuttering, I've noticed that it happens when I handle TS files, with the TS file I also have some issues with the frame navigation and with some missing frames at start. (maybe libav can handle it better.... i'll try)
So I used the avidemux mkv muxer, instead of the TS muxer, on the first cuttings and now, handling the mkv on avspmod makes all smooth with no stuttering at all, no missing frames, good frame nav.

I'm gonna recreate masks with no prefetch line...
edit: I haven't timed, but it's taking ages, just like before with prefetch.

[VoodooFX]

edit: I haven't timed, but it's taking ages, just like before with prefetch.

Maybe your PC is slow, it's all down how fast your CPU can decode video.
I measured your sample with AVSMeter, my ooold CPU decodes it at 425 FPS, 1H 30Mins movie - ~5 mins, +Analyze would be less than 10mins.

[maudit]

edit: I haven't timed, but it's taking ages, just like before with prefetch.

Maybe you PC is slow, it's all down how fast your CPU can decode video.
I measured your sample with AVSMeter, my ooold CPU decodes it at 425 FPS, 1H 30Mins movie - ~5 mins, +Analyze would be less than 10mins.

not maybe, it is!
it just finish right now, 1h 30min. the cpu is an amd apu mobile 5300u 4x2cores..
I know it's slow, anyway it runned at 30% for the whole process.
I'll let know you about further progress.

[maudit]

well, using the mkv instead of the TS, the video no longer stutter, but
the logo artifacts, remnants are still visible on dark, high contrast, moving scenes..
and it was semi transparent, perhaps it is the maximum obtainable, I'll settle for it.

[VoodooFX]

remnants are still visible on dark, high contrast, moving scenes..
and it was semi transparent, perhaps it is the maximum obtainable

Probably not, there are dozens of parameters, and you changed default of only one.

the cpu is an amd apu mobile 5300u 4x2cores..

Then why do you use Prefetch(7)? Probably you are making script slower than without Prefetch.

[maudit]

remnants are still visible on dark, high contrast, moving scenes..
and it was semi transparent, perhaps it is the maximum obtainable

Probably not, there is dozens of parameters, and you changed default of only one.

the cpu is an amd apu mobile 5300u 4x2cores..

Then why do you use Prefetch(7)? Probably you are making script slower than without Prefetch.

No doubt.
I've re-read the manual and the parameters are not so many, anyway I have difficulties to understand how to use them exactly.
I should do several tests, and each one takes a lot of time.
I think I'm going to give up and keep the logo.


I use prefetch(7) cause someone else suggested in another thread,
he said something like to insert a number equal to the number of logic cores minus one.
But if you say it's wrong and it's making encodings slower, then I'd like to know your opinion, what number do you think I should use? 3?

[VoodooFX]

Nevermind, for some reason I thought that it's quad core.