iPhone 13pro .heic color distortion in DR

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legendbb

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  • Joined: Fri Feb 04, 2022 2:38 pm
  • Real Name: Ethan Zheng

iPhone 13pro .heic color distortion in DR

PostMon Dec 26, 2022 4:51 am

I've recently tried importing .HEIC pictures into DR v18/v17 (Mac Ventura).
Some .HEIC files (took by iPhone 13pro) looks washed out with wrong color watermark. It seems like color mapping error.
Not all .HEIC files looks wrong, just some, don't see any pattern.

Tested the same on M1 CPU and Intel CPU, all the same.

Please comment,
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Davster

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  • Real Name: Dave Young

Re: iPhone 13pro .heic color distortion in DR

PostThu May 02, 2024 10:34 am

I'm finding the same behaviour in Studio 18.6.6 (build 7).

It looks like the example shared here:
https://www.reddit.com/r/davinciresolve ... ic_import/
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mpetech

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  • Real Name: Dom Silverio

Re: iPhone 13pro .heic color distortion in DR

PostThu May 02, 2024 1:26 pm

legendbb wrote:I've recently tried importing .HEIC pictures into DR v18/v17 (Mac Ventura).
Some .HEIC files (took by iPhone 13pro) looks washed out with wrong color watermark. It seems like color mapping error.
Not all .HEIC files looks wrong, just some, don't see any pattern.

Tested the same on M1 CPU and Intel CPU, all the same.

Please comment,


What is the source color space and gamma is being detected by DR for the video?
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johngwheeler

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  • Location: Sydney, Australia
  • Real Name: John Wheeler

Re: iPhone 13pro .heic color distortion in DR

PostMon Jun 10, 2024 3:37 am

I have the same problem with Resolve after upgrading to 18.6.4 Build 6 and macOS Sonoma 14.5, but can't tell which is responsible - I suspect the update of macOS based on other posts.

e.g.
Screenshot 2024-06-10 at 13.08.17.png
Screenshot 2024-06-10 at 13.08.17.png (579.54 KiB) Viewed 103 times


I'm not sure where Davinci detects or sets the color space for still images - but I played around with the Color Space and Transforms in the project settings and it made no difference to the thumbnails in the media pool, or to clips already on the timeline.

Any ideas what I should be looking at?

I opened the HEIC file with the "MediaInfo" app and was surprised to see it actually has 51 different image components. The first two are:

Screenshot 2024-06-10 at 13.34.03.png
Screenshot 2024-06-10 at 13.34.03.png (153.08 KiB) Viewed 103 times


Not sure if this helps!

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