Logo detection getting confused

To discuss the tuning of comskip and for posting your ini files
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evilpenguin
Posts: 13
Joined: Thu Oct 05, 2006 3:24 pm

Logo detection getting confused

Post by evilpenguin »

I'm working on tuning some of my problem recordings and it looks like a lot of the problem stems from the logo detection getting confused when a commercial has a static image in the same spot.

Image

I can fix it by increasing the logo_threshold all the way up to .95, but this is a pretty rare occurrence and I'm hesitant to make such an extreme change to handle such few cases. Any advice for tuning this out with another tweak?

Here's the CSV file for your own inspection...
http://perl2dvd.wiki.sourceforge.net/sp ... 76275-0.7z
erik
Site Admin
Posts: 3368
Joined: Sun Aug 21, 2005 3:49 pm

Re: Logo detection getting confused

Post by erik »

The simplest suggestion I can give is to set
logo_present_modifier=1
This should prevent the logo being found in commercials to have a negative effect while the logo still will group the show blocks together into one big block
erik
Site Admin
Posts: 3368
Joined: Sun Aug 21, 2005 3:49 pm

Re: Logo detection getting confused

Post by erik »

A more complex solution requires tuning the logo detection.
This involves a lot of trial and error.
There should be some information in the manual but if needed I can give some more based on these parameters (with their current default values)
logo_threshold=0.8
logo_filter=0
aggressive_logo_rejection=0
edge_level_threshold=5
edge_radius=2
edge_weight=10
edge_step=1

The first thing to try is to set
aggressive_logo_rejection=1
evilpenguin
Posts: 13
Joined: Thu Oct 05, 2006 3:24 pm

Re: Logo detection getting confused

Post by evilpenguin »

Thanks Erik, i'll play around with that.
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