[OT] Convert videos to grayscale


    Apr 10 2008 | 9:36 am
    Hi,
    Does anyone know of a video batch application (ala MPEG Streamclip) that can convert colour videos to grayscale?
    It is not an option to use Max for this, since the video files that I have to convert cannot be opened with QuickTime (recorded with some weird surveillance camera system).
    Thanks, Alexander

    • Apr 10 2008 | 7:23 pm
      From MPEG Streamclip's help file:
      Adjustments The Adjustments panel lets you adjust brightness, contrast, saturation and volume. Adjustments take effect only if you click OK.
      Turn the saturation down to 0% and you'll be good to go. Google "MPEG Streamclip batch process" if you don't know how to batch in it.
      cheers, dan
      On Apr 10, 2008, at 5:36 AM, Alexander Refsum Jensenius wrote:
      > Hi, > > Does anyone know of a video batch application (ala MPEG Streamclip) > that can convert colour videos to grayscale? > > It is not an option to use Max for this, since the video files that > I have to convert cannot be opened with QuickTime (recorded with > some weird surveillance camera system). > > Thanks, > Alexander
    • Apr 15 2008 | 1:31 pm
      Hi,
      Thanks for answering. Yes, I know about the adjustment possibilities, but this will still give you a 4 plane video file. I am looking for a way to reduce file size and processing load, and then it would be better to get a real 1 plane video file.
      Thanks, Alexander
      > The Adjustments panel lets you adjust brightness, contrast, > saturation and volume. Adjustments take effect only if you click OK.
      >> Does anyone know of a video batch application (ala MPEG Streamclip) >> that can convert colour videos to grayscale?
    • Apr 15 2008 | 5:29 pm
      generalizing, any codec that compress video NOT as rgb (or argb) will give you better results. like yuv colorspace http://en.wikipedia.org/wiki/YUV some codecs support both colorspaces. see the link for more info. but its always better to just try. also quicktime is very picky about what codecs it will prefer. beter test before. the 1 plane4 plane is a jitter convention
      On Tue, Apr 15, 2008 at 4:31 PM, Alexander Refsum Jensenius < a.r.jensenius@imv.uio.no> wrote:
      > Hi, > > Thanks for answering. Yes, I know about the adjustment possibilities, but > this will still give you a 4 plane video file. I am looking for a way to > reduce file size and processing load, and then it would be better to get a > real 1 plane video file. > > Thanks, > Alexander > > > The Adjustments panel lets you adjust brightness, contrast, saturation > > and volume. Adjustments take effect only if you click OK. > > > > Does anyone know of a video batch application (ala MPEG Streamclip) that > > > can convert colour videos to grayscale? > > > > > > >