[email protected] wrote: > I've a file taken with a mobile phone. > > The detail is execrable. > > It's important to identify a couple of faces in the file. > > I've asked around. The best I have is to go through the file, select a > critical frame, download it and use The Gimp to sharpen a given face. > > First off, can this be done?
I haven't tried loading video files into gimp (I'm assuming you mean some sort of video file right?). I know that you can convert frames to pictures using mplayer: mplayer video_file -vo png -ss 1:00:00 -endpos 4 This will approximately play from 1hr to 1:00:04 and capture the frames as png images in the current directory (I haven't actually tested it so you might need to add the compression option in (-vo png:z=0 etc). There's also jpeg which has more options in my version of mplayer. You may need to check which -vo's are supported: mplayer -vo help I think you can also apply filters on the video using -vf including unsharp mask: mplayer -vf help A random example: mplayer video_file -vo png -vf unsharp=l7x7:1.5 -ss 1:00:00 -endpos 4 See the man page for mplayer. Other ways of sharpening the resulting images might include: getting gimp to batch process them (haven't done this); or using imagemagick's 'convert' to sharpen the images using something like the -sharpen option in a simple shell script. -- Daniel Bush -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
