Re: Colorsync-users Digest, Vol 8, Issue 182
Re: Colorsync-users Digest, Vol 8, Issue 182
- Subject: Re: Colorsync-users Digest, Vol 8, Issue 182
- From: Louis Dery <email@hidden>
- Date: Wed, 17 Aug 2011 19:20:02 -0400
Hi Jurgen,
here is some answers to your questions:
Le 2011-08-12 à 15:01, email@hidden a écrit :
> Message: 1
> Date: Thu, 11 Aug 2011 15:35:40 -0400
> From: J Richter <email@hidden>
> Subject: iPad calibration/characterization...
> To: Colorsync-users on Apple Lists <email@hidden>
> Message-ID: <email@hidden>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> While a noob to this ipad/tablet gizmo currently under discussion, I have some relevant questions:
>
> - So what is the color gamut for iPads?
You can see a comparative chromaticity graph at: http://www.couleur911.com/ipad_color_management_3_en.html
> - Is it the same for ipad I and II?
I’ve compared 6 iPads 1 against iPad 2 and visually they are the same
> - Is there [any] consistency from one ipad to another?
The most important difference is the white point
> - Even if you could characterize or profile a specific tablet, is there any drift of accuracy, and over what amount of time?
Over time I don’t have the answer yet.
> - do they have to be "warmed up" too, before profiling a unit, if even possible?
I would guest 5 minutes, but I didn’t test warm up comparison yet.
> - If not sRGB, then what is a better/more realistic/accurate gamut?
I’ve compared many RGB color spaces (sRGB, Adobe RGB, Apple RGB, Generic RGB, etc.), none of them have the same "blue" chromatic characteristic of the iPad. But if you want to use one, take Apple Generic RGB. It is not perfect, specially for the blue, but it is the closest one.
> - What about other android OS pads/tablets... what gamut is "standard" for this OS if not sRGB?
Didn’t test other tablet yet.
> - Are any android apps even color management savvy and actually make use of any ICC profiles that might be built into an image?
Don’t have the answer.
>
> Hoping there is maybe a color management 101 document floating around that is specific to these sort of devices; if not, some answers to these questions would be appreciated. Thank you.
>
> Jurgen Richter
Louis Dery
email@hidden
Rés.: 418-877-2381
Cell.: 418-805-9689
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