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en:vegasscenedetect [2019/06/16 15:31]
hlinke 		en:vegasscenedetect [2019/07/28 10:36] (aktuell)
hlinke
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 But what is with situation where you have a  complete video e.g. a scan of a Suoer 8 film or a scan of a VHS video that you would like to have cut into scenes? But what is with situation where you have a  complete video e.g. a scan of a Suoer 8 film or a scan of a VHS video that you would like to have cut into scenes?
  
-Here comes VegasSceneDetect in to the game:+Here comes VegasSceneDetect into the game:
  
 VegasSceneDetect analyses video clips either in the mediapool or on the timeline and determines scene changes. At each scene change detected VegasScenedetect either cuts the clips or creates a subclip. VegasSceneDetect analyses video clips either in the mediapool or on the timeline and determines scene changes. At each scene change detected VegasScenedetect either cuts the clips or creates a subclip.
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 VegasSceneDetect is a VEGAS extension and canbe found under Tools -> Extensions -> VegasSceneDetect. See image below (in German) VegasSceneDetect is a VEGAS extension and canbe found under Tools -> Extensions -> VegasSceneDetect. See image below (in German)
  
 +{{:en:capture04b1.jpg?direct|}}
 +
 +VEGASScenedetect has to working options:
 +  - create sub clips in the mediapool
 +  - cut a clip on the timeline
 +
 +==== Mediapool ====
 +  * Select one or several clips in the mediapool
 +  * start VegasSceneDetect
 +  * a PreviewWindow pops up showing the progress of the scenedetection process
 +    * at the top of the previewFrame is a white progress bar shown
 +    * each scenecut is shown in the progress bar as a red dot
 +    * each first frame of a scene is shown in the preview and marked with a red line at the bottom
 +    * each 100th frame of the video is shown (can be configured)
 +  * VegasSceneDetect creates a subclip in the mediapool for each detected scene
 +
 +This option can be switched off in the configuration file.
 +==== Timeline ====
 +  * Select one or several clips on the timeline
 +  * start VegasSceneDetect
 +  * a PreviewWindow pops up showing the progress of the scenedetection process
 +    * at the top of the previewFrame is a white progress bar shown
 +    * each scenecut is shown in the progress bar as a red dot
 +    * each first frame of a scene is shown in the preview and marked with a red line at the bottom
 +    * each 100th frame of the video is shown (can be configured)
 +  * VegasSceneDetect cuts the clip and all clips grouped with the main clip on the timeline and regroups the clips to mainatin the relationchip e.g. videoevent and audioevent are grouped - for all new events on the timeline video and audio are grouped again. (similar as cutting a clip on the timeline by hand)
 +
 +This option can be switched off in the configuration file.
 +
 +==== MediaPool and Timeline ====
 +If clips are selected in the mediapool and the on the timeline VegasScenedetect first process the clips in the mediapool and then on the timeline.
 +
 +==== Configuration ====
 +The behavior or VegasScenedetect can be configured:
 +
 +The folder VEGASPython_PN contains a file VegasSceneDetect_config.json.
 +
 +This file is a json file that contains the configuration.
 +
 +The file can be openend with any text editor like notepad.
 +
 +The file looks as follows:
 +
 +
 +{
 +    "useHSV": true,
 +    "showPreview": true,
 +    "PreviewFrameSkip": 100,
 +    "showFrameValues": false,
 +    "threshold": 30,
 +    "processMediaPool": true,
 +    "processTimeline": true,
 +    "progressBarLightness": 255,
 +    "minSceneLength": 15
 +}
 +
 +Do not change the structure of the file.
 +
 +Explanation of the entries:
 +
 +    "useHSV": true or false - selects if you want to use HSV or RGB for the comparision process to detect a scene chnage. RGB is faster, HSV may create better results in special situations where the color is similar between scenes.
 +    "showPreview": true or false - determines if the preview Window should be shown or not
 +    "PreviewFrameSkip": 100, - Integer value: determines how many frames should be skipped before a frame should be shown in the preview Window. The lower this value the slower is the process. 0 means only the first frame of a scenechange is shown 
 +    "showFrameValues": false, - to determien a better threshold value it is possible to see all calculated values per frame. The values are shown in the "VEGASPython Interactive Window" that you need to open on your own.
 +    "threshold": 30, - value that determines a scene change. The lower the more changes are determined as scene change. 
 +    "processMediaPool": true or false - if true, clips in the media pool are processed
 +    "processTimeline": true or false - if true, clips on the timeline are processed - when both optins are true then first all selected clips in the mediapool are processed and then all selected clips on the timeline.
 +    "progressBarLightness": 255, - lightness of the progress bar
 +    "minSceneLength": 15 - minimum number of frames between scene changes
 +    
 +  
  
  

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