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Forums Compression Techniques Compressor, noise in solid black area

  • Compressor, noise in solid black area

  • AJ Epstein

    April 3, 2006 at 8:19 am

    Hi there!

    I’ve been shooting some footage of some rear projected art in a dark room. The composition changes very slowly over many minutes and there are no cuts.

    I’ve got significant amounts of hard edge rectilinear black bordering my image. I have been shooting 30P on a DVX-100, and then bringing into Final Cut Exporting as a self contained quicktime using the DV codec, taking into compressor and exporting to mpeg2 using 2 pass VBR at the highest bit rate possible. I am also applying a slight gamma correction to try and ‘crush’ my blacks.

    I am finding that in the mpeg2’s, my blacks have VERY NOTICEABLE artifacts.

    Can someone suggest a workflow or filter regimen that will allow me to have real solid blacks?

    Is there a primer somewhere online, or a book that offers compression wisdom?

    thanks!

    AJ

  • AJ Epstein

    April 3, 2006 at 8:21 am

    oh, I should add that I’m running the latest versions of Final Cut Studio, with all the pro-application and OS updates. Dual 2.5 G5 with 1.5GB RAM

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