Option to export stills with Full levels, not Video levels.

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studio1492

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Option to export stills with Full levels, not Video levels.

PostMon Feb 14, 2022 4:31 pm

Exported stills from Color>Gallery>Stills>Exports are exported under legal TV levels "Video Levels (64-940)". There are no more options to export with sRGB "Full Levels (4-1040)" for internet/email/publishing, resulting in "flatty" images.

My requests is to give the choice to choose levels on the gallery>still>export dialog to any of both levels options: video and full.


========= ADDITIONAL BLAH BLAH BLAH ==========
When an exported still picture from Gallery>Export is reimported to Davinci, that image is rendered properly, as, of course, "Clip attributes>Data levels>auto" is matched by DVR to "video 64-960" for imported stills like png or tiff. If we set its data level to "Full" again, the image will look flat. When we use those stills on other workflows than broadcasting, we should covert that picture from 64-960 to full, so our client can see it properly on the email, or we can upload to any website with peace of mind, or to be sent to the graphic designer.

So the only way we have to export "trustable" stills is the non-elegant screen capture (CMD+shift+3 on macOS). If I'm missing something please let me know, but it seems on the forum that there are many other DVR users have been dealing with the flatty stills generated by Resolve, and the answers were so confusing and exotic, as to adquire a Decklink, which will NOT solve this issue.

On the oposite way, when importing external Stills from no broadcast sources (like a DSLR photo, or a downloaded image) to DVR media pool, one must keep in mind to set data levels to "full" on "Clip attributes" in order to get a loyal image, as imported stills have an excess of contrast when set to "video level", and will be the default setting that its IA applies in 100% of cases.

Photos and graphics (RGB files) use Full data levels. Black is 0 and white is 255 for an 8-bit file (0 to 1023 for a 10-bit file). (Technically, black is in fact 4 in both cases since the values from 0 to 3 are reserved for other data).
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Peter Cave

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Re: Option to export stills with Full levels, not Video leve

PostTue Feb 15, 2022 8:21 am

Interesting. I tested a still export as jpeg and it was full range. Not video range as you are experiencing.
Resolve 19.1.2 Mac OSX 15.3 Sequoia, Monitor 3G, FSI SDI grading monitor.
Mac M1 Studio Max 32GB
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deezid

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Re: Option to export stills with Full levels, not Video leve

PostTue Feb 15, 2022 5:48 pm

What you are seeing is probably using the wrong gamma on your Timeline since you are using a Mac.

Use Rec709a instead of Rec709 2.4.
Your exported stills are now identical to what you see on your timeline and exported video in Quicktime, YouTube etc.
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rNeil H

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Re: Option to export stills with Full levels, not Video leve

PostTue Feb 15, 2022 7:31 pm

On my Win10 PC, I don't fave any levels problems with gallery or camera stills.

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studio1492

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Re: Option to export stills with Full levels, not Video leve

PostTue Feb 15, 2022 11:01 pm

deezid wrote:What you are seeing is probably using the wrong gamma on your Timeline since you are using a Mac.

Use Rec709a instead of Rec709 2.4.
Your exported stills are now identical to what you see on your timeline and exported video in Quicktime, YouTube etc.



Ohhh man!!!! You are absolutely right, sir, my latest project were Rec709 2.4.

Using Rec709a solves the issue.

Much appreciated.
- MBP 14" M1 Pro 16GB, 1TB, 10 core CPU, 16 core GPU.
- Resolve Studio 18.6.4 @ macOS 13.6.2
- Mini Panel v2.0
- Speed Editor (gathering dust until killer custom keys arrive)
- Synology DS218
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Peter Cave

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Re: Option to export stills with Full levels, not Video leve

PostWed Feb 16, 2022 12:44 am

rec709 (scene) is the default for SDR projects when not using Resolve Colour Management. It works fine for still exports too.
Resolve 19.1.2 Mac OSX 15.3 Sequoia, Monitor 3G, FSI SDI grading monitor.
Mac M1 Studio Max 32GB

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