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Old 9th November 2020, 23:16   #21  |  Link
FranceBB
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Quote:
Originally Posted by StainlessS View Post
Should be
"v1.2 Added support for all input color spaces ..."
Modified.


Quote:
Originally Posted by StainlessS View Post
I will not remove my prev post, as it gives some background to bugrep in devs forum.
Yeah, keep it, it's nice to have a list of changes in the discussion here on Doom9 so that we can always go back to a previous version. You could have left the previous posts as well.

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Nope, no GitHub account just yet, one day maybe.
Oh...
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Old 25th November 2020, 12:41   #22  |  Link
DTL
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This is great vector-rasterizer but it do not have graticule for unkonwn reason. Especially with IQ axies overlaid that are good enough for control the most important 'euro-standard' skintone with +I axis direction (angle). So it is good addition for this plugin to have option to overlay 'typical' or any hand-designed graticule with degrees markings (at least with 10-degree step) and IQ axies or at least vector-marking to that typical skintone to control.

I though about why magically NTSC skintone vector so good aligned with one of the system axises (and also why IQ axises are rotated to magical angle about 33-deg) - the idea was simple: because NTSC was very buggied with phase-distortions in analog TV so engineers trying to keep at least the most important skintone color make additional rotation of IQ axies so at skintone the I channel is at its maximum amplitude and Q channel close to zero - so any possible cross-distortions between I and Q channels makes minimum real color shift. And also engineers for color tone setting for video cameras got very simple tool for bringing skintone to standard value using vectoroscope screen with overlayed graticule with IQ axies.

Also at typical vectorscope the +I axis is pointed to the upper-left corner so it is good to have option for vertical-flipping of vectorscope image (keeping symbol markings not flipped).

In 2020 I tried to make multi-channel SDI vectorscope for our engeneers for easy setup and in-between cameras aligning of skintone using old Blackmagic Decklink cards as SDI inputs to windows-based computer and directshow multigraphs with ffdshow and this vectorscope rasteriser (with graticule applied as layer via avisynth). Unfortunately due to old card and old drivers the system start to lower update framerate after about 1 hour of running. If anyone interested in this project you can e-mail me.

Also as practice shows it is good to have ROI-selected vectorscope - so some control for setting ROI coordinates at runtime and passing to crop engine or ROI selecting engine inside vectorscope is good. So operator can get cleaner image of the interested part of frame instead of less-informative all-frame colors.

Last edited by DTL; 25th November 2020 at 12:56.
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Old 20th June 2021, 12:52   #23  |  Link
FranceBB
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V1.3 Released

- Avisynth users: no need to update, no changes have been made.
- MPV Users: Added support for MPV, check it out here: https://github.com/FranceBB/mpv-scripts

Please note that due to the limitation of LAV Filter Complex, the MPV version is slightly different from the Avisynth Version:

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Old 20th June 2021, 13:42   #24  |  Link
wonkey_monkey
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Is the oscilloscope thing on the bottom left upside down? Isn't it usually white at the top, black at the bottom?
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Old 20th June 2021, 21:30   #25  |  Link
FranceBB
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Dammit, it is, I just checked...



Fix in progress, hold on.
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Old 21st June 2021, 09:04   #26  |  Link
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Fixed, check new version: https://github.com/FranceBB/mpv-scripts/releases

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Old 21st June 2021, 09:39   #27  |  Link
kedautinh12
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