Logo/Station ID Removal

[PDB]

Wow, thanks for the write up Jerry. It does help a lot. Unfortunately, it makes me think I need to find another source again.

I went through your list very quickly and fixed the obvious alignment problems and oddities you pointed out. That was no problem for the most part.

Unfortunately, just looking at the other problems confirmed my fears about using the Telemundo. Pretty much all of the pixelation and smearing issues you pointed out appear to be from the crappy nature of the Telemundo broadcast. For example here is one spot. It cuts from the overhead sky shot pushing into the rail station to a shot of the door on the roof.  

[Image: pixel.jpg]

You can see the first shot has "bleed-over" from the previous frame. And sadly that's not an IVTC problem. It's in the original 1080i. The second frame still has bad pixelation particularity in the spot of the FXX logo I need to cover up. Only on the third frame is it stable enough to use but then the fast motion a few frames later causes problems. There appears to be pixelation at every cut:

[Image: pixel_2.jpg]

It looks like the Telemundo is not the answer unless I can run noise reduction or something like that. Thanks again for such a complete run down. I appreciate the time you put into it but your list confirms for me that I think I need another source.

Back to the drawing board

[Chewtobacca]

How big is the Telemundo broadcast? I can't promise to fix it, but I might be able to suggest something.

[PDB]

I'd love any advice Chew. I cut the Telemundo down to the IMAX parts just like I did for the FXX broadcast to make the file smaller. I then encoded it in AVI (lag). Unfortunately even cut down its still a whopping 26 gigs (the FXX is about that same)

[jerryshadoe]

Happy to help

If I'm gonna give feedback on anything, it will always be that detailed, otherwise, what's the point?

Unfortunately, in this case, there was a LOT to mention. I figured that most of the problems were caused by the broadcast itself and not a lack of skills on your part. Those screenshots (from shot changes) explain a lot of what I was seeing there.

Just like Chewtobacca, I'm wondering what is the size of the original 1080i broadcast?

Until a better source is found, this telemundo (although it would take a lot more work then you initially thought) broadcast could still be used, but that decision is up to you

[Chewtobacca]

I cut the Telemundo down to the IMAX parts just like I did for the FXX broadcast to make the file smaller. I then encoded it in AVI (lag). Unfortunately even cut down its still a whopping 26 gigs (the FXX is about that same)

How big is the original broadcast (in its original container)? Is it possible that you could share it? You seemed to imply that the file-size is quite small.

[Valeyard]

PDB, you can use delogo for virtualdub in your avisynth script for the logo removals. Here's a mirror for the file delogo132.zip. It works very well but it does leave behind artefacts (depending on the transparancy of the original logo) - you could use it on the frames that can't be erased using the second source. Do remember to use the filter FIRST before any deblocking etc. You can if you want crop the video before using the filter, you could do this if you want to crop just the section that will be modified and then put it back together using stackhorizontal/stackvertical.

Now how to use it in Avisynth. It's not really difficult. Load your video into VirtualDub/(VDubMod) first to find the settings and save the image files needed. Sample one entirely black frame and one entirely white frame (if possible) not the whole movie (you click show preview and select the two frames). If you can't find one bear in mind that the entire frame doesn't have to be black or white - just the area that includes the logo. Follow the instructions and save ALL images in .bmp format. Bare in mind you need to use the RGB (or RGB32) colour space. You can click file > save processing settings if you like, however you don't need to change the default values so you can just use the format you see below.

Once you have done this you can move to Avisynth...

Load the plugin:

Code:

LoadVirtualDubPlugin("C:\Program Files (x86)\VirtualDubMOD\plugins\delogo.vdf","delogo")

Then call it as such:

Code:

converttorgb() delogo(1, "", "deblend.bmp", "alpha.bmp", "color.bmp", "repair.bmp", 15, 40, 0, 0)

That line is adapted from the .vdf:

Code:

VirtualDub.video.filters.instance[0].Config(1, "", "D:/Videos/deblend.bmp", "D:/Videos/alpha.bmp", "D:/Videos/color.bmp", "D:/Videos/repair.bmp", 15, 40, 0, 0);

Note that you don't need to load the analysis.bmp file since it is used to generate the deblend file, that value is blank. Also, the filter doesn't need preroll - it calculates each frame individually from the provided bitmap files.

[PDB]

Happy to help

If I'm gonna give feedback on anything, it will always be that detailed, otherwise, what's the point?

Unfortunately, in this case, there was a LOT to mention. I figured that most of the problems were caused by the broadcast itself and not a lack of skills on your part. Those screenshots (from shot changes) explain a lot of what I was seeing there.

Just like Chewtobacca, I'm wondering what is the size of the original 1080i broadcast?

Until a better source is found, this telemundo (although it would take a lot more work then you initially thought) broadcast could still be used, but that decision is up to you

I cut the Telemundo down to the IMAX parts just like I did for the FXX broadcast to make the file smaller. I then encoded it in AVI (lag). Unfortunately even cut down its still a whopping 26 gigs (the FXX is about that same)

How big is the original broadcast (in its original container)?  Is it possible that you could share it?  You seemed to imply that the file-size is quite small.

The original TS (Mpg2) file is still 22 Gigs (the FXX one is 23). Unfortunately, the reason why, even with the crappy encoding it has a TON of commercials and padding at the front and end

PDB, you can use delogo for virtualdub in your avisynth script for the logo removals. Here's a mirror for the file delogo132.zip. It works very well but it does leave behind artefacts (depending on the transparancy of the original logo) - you could use it on the frames that can't be erased using the second source. Do remember to use the filter FIRST before any deblocking etc. You can if you want crop the video before using the filter, you could do this if you want to crop just the section that will be modified and then put it back together using stackhorizontal/stackvertical.

Now how to use it in Avisynth. It's not really difficult. Load your video into VirtualDub/(VDubMod) first to find the settings and save the image files needed. Sample one entirely black frame and one entirely white frame (if possible) not the whole movie (you click show preview and select the two frames). If you can't find one bear in mind that the entire frame doesn't have to be black or white - just the area that includes the logo. Follow the instructions and save ALL images in .bmp format. Bare in mind you need to use the RGB (or RGB32) colour space. You can click file > save processing settings if you like, however you don't need to change the default values so you can just use the format you see below.

Once you have done this you can move to Avisynth...

Load the plugin:

Code:

LoadVirtualDubPlugin("C:\Program Files (x86)\VirtualDubMOD\plugins\delogo.vdf","delogo")

Then call it as such:

Code:

converttorgb() delogo(1, "", "deblend.bmp", "alpha.bmp", "color.bmp", "repair.bmp", 15, 40, 0, 0)

That line is adapted from the .vdf:

Code:

VirtualDub.video.filters.instance[0].Config(1, "", "D:/Videos/deblend.bmp", "D:/Videos/alpha.bmp", "D:/Videos/color.bmp", "D:/Videos/repair.bmp", 15, 40, 0, 0);

Note that you don't need to load the analysis.bmp file since it is used to generate the deblend file, that value is blank. Also, the filter doesn't need preroll - it calculates each frame individually from the provided bitmap files.

Thanks for the advice Valeyard. I had previously tried delogo in vdub but didn't get anywhere but with your more detailed instructions I'm going to give it a whirl again.

There was another MI GP broadcast on FX last night. I'm going to see if that is any help (the FX logo being smaller then the FXX logo)

[Chewtobacca]

The original TS (Mpg2) file is still 22 Gigs (the FXX one is 23). Unfortunately, the reason why, even with the crappy encoding it has a TON of commercials and padding at the front and end.

Ah, I see. That is rather big. If the new broadcast isn't any help, make a sample of the Telemundo with DGIndex, and I'll have a look.

[PDB]

The original TS (Mpg2) file is still 22 Gigs (the FXX one is 23). Unfortunately, the reason why, even with the crappy encoding it has a TON of commercials and padding at the front and end.

Ah, I see.  That is rather big.  If the new broadcast isn't any help, make a sample of the Telemundo with DGIndex, and I'll have a look.

Appreciate it Chewtobacco

[spoRv]

Avisynth filter exinpaint works very well; not perfect in every shot, of course, and it depends also from the logo shape and dimension, but maybe it's the best one... or not?

http://screenshotcomparison.com/comparison/192189