patzer wrote:The problem with this, someone said that by the time it gets a lot brighter, the images as viewed on google chrome will be almost impossible to see, as the grey will appear white. is this correct?
Isn't the issue with chrome a kind of rounding error? I get that it got grayer faster there, but I don't think the white is any whiter, so doesn't it have to even out some time? I'm still not completely sure how it helps to save the file differently, unless I'm also viewing it differently.
Sorry if this is completely ignorant, I realize I have a big knowledge gap here, so feel free to enlighten me.
The real issue is sort of complicated.
Everyone's monitor displays some sort of gamma correction.
Different browsers seem to apply their own gamma correction on top of your display's gamma setting.
I can't confirm whether or not the .png itself has a color profile embedded in it.
Chrome, it seems, displays a pure linear gamma (that is no gamma-correction).
As seen here, the top row has a gamma correction function curve applied to achieve a more perceptual gradation from black to white as displayed on sRGM monitors.
The bottom row has no gamma correction, letting an absolute linear gradation be displayed; yet since most displays have a gamma correction curve applied by their video card, the linear gradation looks wrong.
The absolute values are still the same in every pixel (if analyzing the original .png, not a screen grab from a browser), it's all in how your browser, monitor, etc., choose to warp the values as it presents it to you.
So, as with time... it's all... relative.