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HDRing video footages
  • sobhan2sobhan2

    How to HDR gh2 footages by color grading

  • 15 Replies sorted by
  • hardimpacthardimpact

    are you asking? which kind you talking about? hybrid log gamma, HDR10, HDR Dolby Vision, etc?.. video or stills? using faux processing, multiple images, or full HDR color grading?

  • MeierhansMeierhans

    Its pretty much the same process as upmixing your old analog tapes up to 7.1 DTS. Just trow a bunch of of random plugins on it, twist the knobs - and its done. ;-o

  • sobhan2sobhan2

    See this sample.

  • MeierhansMeierhans

    Looks like saturation 160% to me. To answer the question: HDR is basicy about recording latitude. How many stops your camera can reproduce. When taking stills you usually combine multiple stills with different exposures to get there. Its much less about coloring and micro contrast. So you can't get real HDR from GH2. You can only pump up saturation till its really ugly, and add too much sharpness to finish it..

  • alcomposeralcomposer

    SDR video has about 8+ stops of dynamic range, which the GH2 perfectly fits into.

    Kinda strange that all our new cameras boast HDR, but we are mostly delivering SDR rec.709 content.

    Add to this that colour management in all popular NLEs is broken. Fun.

  • sobhan2sobhan2

    First you have to shoot in the cloudy sky. Then go to color director software and in HDR options add a some grading.

  • apefosapefos

    you can do this:

    1 - record a video file in normal exposure with your camera, (if your camera have LOG profile use it).

    2 - use the same video file and generate 3 different videos in the video editing software (apply lut if you recorded using LOG) : one with the normal exposure, one you will lower the exposure to make it darker (do not worry if shadows get crushed), one you will raise the exposure to make it brighter (do not worry if highlights get cliped). To darken or brighten, you can use bright and contrast, or exposure adjust, or curves, whatever you prefer, just take care to preserve the overal contrast to avoid washed out image.

    3 - load these 3 video files in the video editing software and export each of them as still images sequence, jpg or tiff

    4 - use a photo hdr software to do a batch processing with the still files to merge each group of 3 stills into a hdr image, the photo hdr softwares have different styles of merging with manual adjusts for different results

    5 - import the hdr still files to the video editing software and export as a final video file (do some grading if you want)

    6 - TADAN!!! you will get the HDR look...

    7 - if you have lots of money you can buy a 3D Stereoscopic Rig and work with two cameras recording the same image through a mirror, one dark for highlights and one bright for shadows, and do the same process...

  • sobhan2sobhan2

    @apefos Your method is good for situations where we have no movement in the camera frame and in the subject.

  • Vitaliy_KiselevVitaliy_Kiselev

    @apefos

    Until it is some kind of raw file (and even if it is) it looks like nice way to waste lot of time.

    Can't you do it simpler, not leaving video editor? For most of the time all you actually need is curves and little grading.

  • sobhan2sobhan2

    Another sample. See in full hd please.

  • sobhan2sobhan2

    Does anyone know what is the best gh2 hack for color grading with the least noise?

  • apefosapefos

    I do not know how to do it in the video editing software.

  • Vitaliy_KiselevVitaliy_Kiselev

    @apefos

    Even literal reproduction of merging 3 images must be possible without issues using node based approach in BM Resolve.

  • rheinpiratrheinpirat

    something like that:

  • sobhan2sobhan2

    Graded in colordirector 7. Intravenous v2. See on 1080p.

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