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Mot : - Tags -/Christian Nold

Autres articles (92)

  • L’utiliser, en parler, le critiquer

    10 avril 2011

    La première attitude à adopter est d’en parler, soit directement avec les personnes impliquées dans son développement, soit autour de vous pour convaincre de nouvelles personnes à l’utiliser.
    Plus la communauté sera nombreuse et plus les évolutions seront rapides ...
    Une liste de discussion est disponible pour tout échange entre utilisateurs.

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

Sur d’autres sites (10713)

  • How to compare the difference between 2 videos color in ffmpeg ?

    3 décembre 2014, par nico_lab

    I have read How to compare/show the difference between 2 videos in ffmpeg ? , but "blend=all_mode=difference" is green.
    How do I get more colorful diffrence using blend filter ?

    sample command is

    ffplay -f lavfi "movie=left.mp4,split[a1][a2]; movie=right.mp4,split[b1][b2]; [a1][b1]blend=all_mode=difference[blend];[a2]pad=2*iw:2*ih[left];[left][b2]overlay=w[tmp];[tmp][blend]overlay=0:h"

    using "hue=s=0", color is chenge monochrome.

    ffplay -f lavfi "movie=left.mp4,split[a1][a2]; movie=right.mp4,split[b1][b2]; [a1][b1]blend=all_mode=difference,hue=s=0[blend];[a2]pad=2*iw:2*ih[left];[left][b2]overlay=w[tmp];[tmp][blend]overlay=0:h"

    The goal is this video. if you have a niconico account.
    http://www.nicovideo.jp/watch/sm24864058

    if you don’t have a niconico account, embed page is
    http://www.nicozon.net/watch/sm24864058

  • what difference between Opencv capture and use ffmpeg and v4l2 to catch camera image [closed]

    18 janvier 2024, par JXJUT

    I'm doing a project which uses a usb camera on Raspberry PI to do the vision process. I get a demo from my coworker. They use v4l2 and ffmpeg to catch the image and then process it in Opencv instead of directly using Opencv capture to catch the image. I wonder if there is a difference between the two methods.

    


    I wonder difference between two method

    


  • FFMPG changing bit rate difference [closed]

    14 décembre 2023, par Bogudał.Mikołaj

    I found on SO command for parsing bit rate in video file

    


    ffmpeg -i input.mp4 -b:v 10k -b:a 0 output.mp4 -y


    


    but when I check bit rate in output file it says 23k bit rate. Is it normal behavior ? If yes, then why ?

    


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