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Exported JPEG frame darker since 14.4.0 (Rec. 709 instead of sRGB)

New Here ,
Oct 18, 2020

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When using the "Export Frame" feature in the timeline (Shift + E), or using JPEG in "Export Media" dialog, the JPEG exports are darker than they used to.

 

This only affects JPEG rendering, PNG is fine.

 

If I open both files in Photoshop, both are in sRGB IEC61966-2.1 color space. However if I take the "good" PNG, and in "Edit", "Assign Profile", force it in Rec.709 Gamma 2.4, it now looks the exact same as the JPG (I hope that might help pinpoint the issue).

 

Also, while the JPG looks darker everywhre (Preview, Photoshop, web browser), if I add it back to a Premiere timeline, it now looks the same as the PNG and the original MP4 footage.

 

Any idea what could be causing that and how to fix it?

 

Here's the JPEG and PNG exports for comparison.

 

JPEG:

 

jpg.jpg

PNG:

png.png

 

Using Premiere 14.4.0 on macOS 10.15.7.

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Error or problem, Export

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Exported JPEG frame darker since 14.4.0 (Rec. 709 instead of sRGB)

New Here ,
Oct 18, 2020

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When using the "Export Frame" feature in the timeline (Shift + E), or using JPEG in "Export Media" dialog, the JPEG exports are darker than they used to.

 

This only affects JPEG rendering, PNG is fine.

 

If I open both files in Photoshop, both are in sRGB IEC61966-2.1 color space. However if I take the "good" PNG, and in "Edit", "Assign Profile", force it in Rec.709 Gamma 2.4, it now looks the exact same as the JPG (I hope that might help pinpoint the issue).

 

Also, while the JPG looks darker everywhre (Preview, Photoshop, web browser), if I add it back to a Premiere timeline, it now looks the same as the PNG and the original MP4 footage.

 

Any idea what could be causing that and how to fix it?

 

Here's the JPEG and PNG exports for comparison.

 

JPEG:

 

jpg.jpg

PNG:

png.png

 

Using Premiere 14.4.0 on macOS 10.15.7.

TOPICS
Error or problem, Export

Views

47

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Oct 18, 2020 0
Adobe Community Professional ,
Oct 18, 2020

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Yes, I see the same thing. In windows photo viewer it is ever so slightly darker but perfect in PP. I'd trust PP.

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Oct 18, 2020 0
New Here ,
Oct 19, 2020

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I always have slight differences in contrast/tone between PP and other viewing apps whether it's pictures or videos, however PP's output for JPEG and PNG still frames used to look the exact same when viewed in other apps, and since that last update it's not the case anymore, JPEGs only are darker than they used to.

 

Also I just noticed in my first post for some reason the JPEG got uploaded twice so we can't see the difference I'm talking about... I can't seem to be able to edit the post so I'll try posting them again

 

jpg.jpg

  

png.png

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Oct 19, 2020 0
vava722 LATEST
New Here ,
Oct 19, 2020

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Weird in the post preview I had the proper differences between JPEG and PNG, but then when posting the PNG file was replaced by the JPEG one again... (both are even stored with the jpg.jpg filename)

Here's a Drive link where both files can be compared more easily, you can see it's actually not a slight difference in that particular case https://drive.google.com/drive/folders/1BcnEYdfcQbsROnTwcN1dkn7yqme1UoPj

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Oct 19, 2020 0