[argyllcms] Re: Android - color management

  • From: János, Tóth F. <janos666@xxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Wed, 18 Jul 2012 16:20:40 +0200

Thanks for the video.

But this is exactly what I did and colors doesn't seem to be right. First
of all, FF doesn't seem to correct the white point. And the colors still
look over-saturated.

If I use the ProPhoto profile then the difference is obvious. But I can not
really tell the difference if my profile is active or not (I tried to
replace the custom icm with a renamed sRGB profile and restart the browser).

I guess I should try to measure some points (rendered by the browser) to
make sure.


By the way... What type of profiles should it accept as display profile?
I guess XYZ LUT is out of the scope, but what about the shaper+matrix type?
Should I create an even more simple gamma+matrix profile?

I tried to use the ProPhoto.icm and that one obviously makes a huge
difference.

2012/7/18 Becker Béla <beckerbela@xxxxxxxxx>

> I wish to apologize to the board for the non-English message I sent this
> morning, I meant to send this message privately to J. Tóth!
> As an update, Firefox on Android still has color management, albeit it
> probably uses QCMS. The browser has improved a lot in the past year,
> especially in performance, it is now comparable to the stock browser.
>
>
> On Wed, Jul 18, 2012 at 10:18 AM, Becker Béla <beckerbela@xxxxxxxxx>wrote:
>
>> Kedves János!
>>
>> Elvileg ha követi az eredeti levelemben leírt lépéseket, a Firefox
>> kezelni fogja a megadott profilt. Arra ügyelni kell, hogy az Android a Unix
>> hagyatékának köszönhetően külön kezeli a fájlrendszerében a kis- és
>> nagybetűket.
>> Csináltam egy felvételt a műveletről, hátha segít. ProPhoto profilt
>> használtam, ezáltal kilépés után elég egyértelmű, hogy dolgozik a színeken
>> a Firefox. Ezen a címen elérhető:
>>  
>> https://dl.dropbox.com/u/15617781/video.mp4<https://dl.dropbox.com/u/15617781/video.mp4>
>>
>> Viszont ha spektrométerrel készítette a képernyő profilját, azt én is el
>> szeretném kérni. Nekem is Galaxy S2-m van, és szerintem a megjelenítők
>> közti gyártási eltérésnek kisebbnek kell lennie mint a CCFL-hez szokott
>> koloriméterrel történő mérés hibájának, és nekem csak egy Spyder3-am van.
>>
>> Nekem is jó szokásom, hogy már első napon a gyáritól eltérő ROM-okat
>> teszek a mobilkészülékeimre. Én a CyanogenMod 9-nél ragadtam le. Külön
>> élvezet követni a fejlődést a forráskódjában.
>>
>>  Üdvözlettel:
>> Becker Béla
>>
>>
>> On Wed, Jul 18, 2012 at 4:44 AM, János, Tóth F. <janos666@xxxxxxxxxx>wrote:
>>
>>> Could you please explain how did you set up the Firefox browser under
>>> the Android OS?
>>>
>>> I created an ICM profile (shaper+matrix with ArgyllCMS) for the
>>> oversaturated (>AdobeRGB) OLED screen of a Galaxy SII (rooted custom
>>> firmware) but I have no idea how I should give Firefox the location of this
>>> file.
>>> Imputing /sdcard/outfile.icm or /mnt/sdcard/outfile.icm or simply
>>> outfile.icm didn't win (I set the browser to always apply the profile for
>>> every rendered graphichs with Absolute colorimetry, so it should be obvious
>>> when it works).
>>>
>>> I am not really familiar with Android. Actually I just unpacked this (my
>>> first Android based) phone today (and I spent most of this day by
>>> installing custom firmwares and of course, profiling the display :D), so I
>>> am not sure how Firefox sees the file system and what it expects to be
>>> entered for the Gfx.color management.display.profile parameter.
>>>
>>>
>>> 2011/7/26 Becker Béla <beckerbela@xxxxxxxxx>
>>>
>>>> This may be a bit late, but I think it's still relevant.
>>>>
>>>> You can get color management to work in android inside the Firefox
>>>> mobile browser. Go to the about:config page (type about:config in the
>>>> address bar) and filter for gfx. Then, enable color management, set a path
>>>> to your .icm profile. gfx.color_management.rendering_intent 0 is
>>>> perceptual, 1 is relative colorimetric, 2 is saturation, 3 is absolute.
>>>>
>>>> I do not know of a way to calibrate the android screen because of a
>>>> lack of a cLUT loading interface, but you can profile the screen by using a
>>>> vnc screen sharing app like TeamViewer.
>>>>
>>>>
>>>
>>
>

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