Color Issues

[gh0sti]

Distorts color on iPhone 6s+, leaves green pixels and other distorted color.

[DotTheI]

Same on iPhone 6

[luuuke]

Could you try to make a picture of the problem and post it here?

[JosephDuffy]

I can confirm this also happens on an iPhone 6 running iOS 9.0. When taking a screenshot it doesn't capture the "distortion". It is worse with the option set on, but still present when off. I may be able to take a photo with my webcam tomorrow.

[DotTheI]

@luuuke It can't be captured by screen shots, so I made a picture with an "external" camera

[thomasfinch]

Can you try restarting your phone? That resets the colors and may fix it.

On Fri, Oct 9, 2015 at 8:34 PM, Joseph Duffy notifications@github.com
wrote:

I can confirm this also happens on an iPhone 6 running iOS 9.0. When taking a screenshot it doesn't capture the "distortion". It is worse with the option set on, but still present when off. I may be able to take a photo with my webcam tomorrow.

Reply to this email directly or view it on GitHub:
#3 (comment)

[DotTheI]

@thomasfinch Restarting didn't help

[Critter]

Settings / General / Accessibility / Increase Contrast /

Disable Reduce White Point

it worked for me. was mentioned by someone on reddit

[DotTheI]

@Critter I have it enabled. It might be the culprit. However, it would be just a workaround to turn it off.

[luuuke]

Oh wow, just tried it myself with reduced white point. Looks trippy. Seems to be an issue when two gamma table settings get mixed.

[DotTheI]

@thomasfinch
Has the issue been fixed?

[thomasfinch]

No, but it was clearly caused by reduced white point. The easy solution is to disable reduced white point, and that's orders of magnitude easier than digging into how that interacts with the gamma table to cause this problem. I don't have the time or knowledge of how the gamma table works to fix the root cause.