On 9/22/2012 9:16 AM, Björn Gimle wrote: > when I want to check/analyze a video I want to use single-stepping > and/or slow-motion, enhance contrast/brightness and capture stills or > short sections of the movie. > Are there any free (or cheap) utilities for some of that ? Hi Björn Please have a look at Virtual Dub: http://www.virtualdub.org/ Before moving onto using Cees' technique this was the package I found most useful for dealing with my observational videos. Using Cees' technique which was adapted from Meteor observers, the awkwardly large video is compressed into a four frame FITS file which preserves all of the relevant information found on the video. As Cees recently observed this four frame can be 'uncompressed' to recreate a video. However, there is no real need to use video in its native format other than to demonstrate something or present still image sequences to demonstrate something like the recent sequence from China's Compass launch etc. Any data that I may post is supported by the raw FITS or PNG images so if a user wishes to perform further analysis I would be pleased to supply them in support of any post made here. To view and analyze a FITS image we recommend DS9: http://hea-www.harvard.edu/RD/ds9/site/Download.html .PNG images can be viewed by almost anything and Firefox browser does a good job of displaying .APNG animations... Regards, Scott _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-l
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