| mafilou | | L\'ennemi de mon ennemi est mon ami | | Modérateur |  | | 3366 messages postés |
|  Posté le 12-03-2005 à 04:22:57  
| Filtre Virtualdub pour enlever un sous-titre, un logo ...
lien dl filtre : http://www.compression.ru/video/subtitles_removal/index_en.html
Voici une méthode et deux prises d'ecran: un résultat moyen et un résultat meilleur. (Le changement de format n'a rien à voir avec le filtre, l'original n'était pas bien dimensionné )
Ceci fonctionne également pour un logo persistant ou un message qui apparait de temps en temps signalant 'ce dvd ne peut pas ....'.
Voici les paramètres indiqués dans le filtre Bien sûr le résultat n'est jamais 100% parfait.
Et voici pour ceux qui veulent savoir d’avantage (en anglais)
Compression project (most info is in Russian) >>
In English: Video
Download
Projects >> D.Vatolin | M.Smirnov | E.Shelwien | D.Shkarin
VirtualDub MSU Subtile&Logo Remover
MSU Graphics & Media Lab (Video Group)
New filter version with better result on wide anount of videos in progress now! Approximately it will be ready at the middle of September.
The filter is intended to remove subtitles and logo from films.
Main filter ideas:
•AUTOMATIC logo detection (including shifting logo in differente scenes)
•Motion compensation for correct logo area filling. (Effect of objects "crawling" over the subtitles or logo).
Example in AVI (DivX4) video and comparison with LogoAway & X-Logo filters (1.5 MB)
See filter User's Guide for more detailes
1. Logo position - shows approximate position of the logo, sets the search area.
- Left-bottom corner X, Y - X and Y coordinates of left-bottom corner of the search area
- Size (Width, Height) - Size of the search area
2. Logo detection - parameters for automatic logo detection in the search area.
- Dilation - parameter that controls morphological operation called "dilation". It is used to eliminate some of the drawbacks of automatic detection algorithm. Also it can be increased if logo has degraded borders. Default value is 5.
- Threshold - Threshold for logo detection. If this value is decreased the filter can find "unnecessary" pixels that logo doesn't contain. We recommended to decrease it only if filter detects the logo incompletely. We recommend to increase this parameter if filter removes useful information additionally to the logo.
- Draw Area - shows the search area. Default value is off.
- Whole frame - parameter for logo detection in the whole frame. It is useful to use that when a movie has two or more logotypes in different locations of the screen.
3. Motion - parameter for logo removal
- Block size - The size of the block in pixels. For high-quality removal of small logo it is recommended to decrease this value and if logo is large this value can be increased.
- Blur block size - This parameter defines blurring - the first stage of filter's work. We recommend to change this value only if blurring has lower than required quality.
- Depth of motion estimation - If there is a strong motion in a movie we recommend to increase this value. Vice versa in case of weak motion low value is proposed.
- Use blur with MC - It is useful parameter for noisy movies and when logo removal works not as desired.
4. Preset - here user can choose preset settings for logo or subtitles.
Examples:Let's consider job of the filter on a test rollers
source frame from film Notre Dame da Paris
Download
Open this file VirtualDub. Unpacked in the folder "Plugins". File size 34 KB (in ZIP)
http://www.compression.ru/video/subtitles_removal/src/msu_delogo.zip
Video resourses:
• MSU Filters :
o "MSU Deinterlacing" filter (info only)
o "MSU Old Cinema" filter (description, examples, filter) (New!)
o "MSU Deblocking" filter (description, examples, filter) (Top!)
o "MSU Smart Brightness and Contrast" filter (info only)
o "MSU Smart Sharpen" filter (description, examples, filter) (Top!)
o "MSU Noise generation" filter (description, examples, filter)
o "MSU Denoising" filter (description, examples, filter) (New!)
o "MSU Motion Estimation Information" filter (description, examples, filter)
o "MSU Old Film Recovery" filter (info only)
o "MSU Subtitles&Logo removal" filter (description, examples, filter) (Top!)
o "MSU Deflicker" filter (description, examples, filter) (Top!)
o "MSU Field Shift Fixer" AviSynth plug-in (description, examples, filter)
o "MSU Tuner TV Restore" filter (info only) (New!)
•Compression:
o Video codecs comparison tests (190 pages PDF) (Top!)
o MSU lossless video codec (New!)
•Other:
o MSU Frame Rate Conversion method (info only) (New!)
o High quality image and video resampling (info only)
o Crazy gallery (filters screams 
Message édité le 20-03-2005 à 14:13:08 par tibo33
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Pas de copie privée <==> Pas de redevance copie privée
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