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Activity Forums AJA Video Systems Videolevel-Problem with AJA RGB Codec

  • Videolevel-Problem with AJA RGB Codec

    Posted by Mischmaschine on August 7, 2006 at 10:45 pm

    A short description of the problem:
    I loaded some SD-clips in AJA-RGB-Codec with Finalcut. These clips had
    been retouched with Combustion and rendered in AJA RGB Codec. Black has
    the value 10% of the video-level and white has the value 90% of the
    video-level after importing of the retouched clips in FCP. It seems
    that nothing has changed in the gamma-range.
    It is strange that the difference between the video-level of the
    original clip and the video-level of the retouched clip could be only
    seen, if the whole video-image is displayed in Canvas (“Fit to
    Window”). If you zoom in (therefore, just a part of the video is
    dispayed in Canvas), the original clip and the retouched clip are
    identical. My extern Tektronix Waveform presents the same result.
    Unfortunately, the video-levels are identical, but differ still from
    the original (displayed with “Fit to Fill”). The image on the
    video-output becomes darker and the black-values decrease.

    I ask for your quick help, hopefully before tomorrow!

    Best regards!

    Markus

    Mischmaschine replied 19 years, 9 months ago 2 Members · 3 Replies
  • 3 Replies
  • Jeremy Garchow

    August 8, 2006 at 1:16 am

    Did you set your output to RGB and your sequence to render in RGB?

  • Mischmaschine

    August 8, 2006 at 1:31 am

    Of course the sequence is set to RGB. But how can I change the output to RGB? There is no possibility in FCP “Audio/Video Settings” -> “A/V Devices” to change the color-mode.

    Thx. Markus

  • Mischmaschine

    August 8, 2006 at 2:48 am

    Thanks for your post.

    Of cource the FCP sequence is set to RGB. But how do you set the output to RGB? In FCPs “Audio/Video Settings” -> “A/V Devices” is no possibility to change the color mode from YUV to RGB. The KonaControlPanel reports 8yuv as working color mode.?? But as well as in FCP it isn’t possible to switch to RGB with the ControlPanel.

    Markus

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