iOS 10 doesn't support DCI-P3 on Wallpapers

[Quad5Ny]

On supported devices like the iPhone 7, it seems that you don't get the larger color gamut on wallpapers even if the image has the DCI-P3 profile assigned.

Below is a DCI-P3 wallpaper in Photos and then as a lockscreen wallpaper; exposure and display backlight was locked.

Source Wallpaper (if you want to try it on your device, the difference is much more noticeable in person)

 

[DeutscheMark]

Are you sure this isn't just the dimming of all wallpapers in iOS 10?

Why the wallpaper is so dark in iOS 10?

 

[Mr.Blacky]

Are you sure this isn't just the dimming of all wallpapers in iOS 10?

Why the wallpaper is so dark in iOS 10?

I agree with that! If it were the color gamut, I shouldn't notice any difference on my 5s screen.

 

[LordQ]

Are you sure this isn't just the dimming of all wallpapers in iOS 10?

Why the wallpaper is so dark in iOS 10?

Ugh, by far the worst thing in iOS 10.

 

[Quad5Ny]

Are you sure this isn't just the dimming of all wallpapers in iOS 10?

Why the wallpaper is so dark in iOS 10?

I agree with that! If it were the color gamut, I shouldn't notice any difference on my 5s screen.

I doubt it is the wallpaper problem. The bug (or feature) with wallpapers being selectively dimmed should not affect the saturation of colors.
(Edit: My original reply sounded a bit snarky, sorry about that.)

I did some measures of the Red primary and anything larger than the sRGB/Rec.709 gamut gets remapped (downgraded) to that.

CIE 1931 xy

CIE 1931 xyY
The last "Y" is luminance (brightness). Notice that it barely changes for all the measures.

cd/m2 RGB

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