Which „color sync“ group you mean? Where can i find it? Thanks martin Von: Kamil Tresnak <kamil.tresnak(a)gmail.com> Antworten an: <eci-en(a)lists.callassoftware.com> Datum: Freitag, 25. April 2014 15:02 An: <eci-en(a)lists.callassoftware.com> Betreff: Re: [ECI-EN] Creating a new/own Working Space, which includes the colorspaces of mobile devices Hello Martin, it's obvious that you have problems with essential principles of color management; i suggest you read some good books (from Bruce Fraser, p.e.) and post your questions to color sync group, as there are some really great minds and are focused more to color managemt than this group; btw, your problem was widely discussed in color sync group. All the best Kamil On Fri, Apr 25, 2014 at 1:47 PM, Martin Kytzia <m.kytzia(a)uni-wuppertal.de> wrote: _______________________________________________ ECI-EN mailing list ECI-EN(a)lists.callassoftware.com http://lists.callassoftware.com/mailman/listinfo/eci-en

You are a little late to the party. This is not a new area and it would be a shame to go off and do your own thing when so much has already been done both in standards committees and in industry trade groups. Specifically there is work ongoing in ISO TC42. ISO 22028, Photography and graphic technology - Extended colour encodings for digital image storage, manipulation and interchange, lays out the basic requirements for color spaces. TC42 is also doing work in conjunction with IEC re mobile devices (both image capture and displays). http://www.imaging.org/ist/resources/standards/committees.cfm David Q. McDowell 51 Parkwood Lane Penfield, NY 14526 T: 585-383-1706, C: 585-281-8429 Standards E-Mail: dmcdowell@npes.org<mailto:dmcdowell@npes.org> Personal E-Mail: dmcdowell@rochester.rr.com<mailto:dmcdowell@rochester.rr.com> From: eci-en-bounces(a)lists.callassoftware.com [mailto:eci-en-bounces@lists.callassoftware.com] On Behalf Of Olaf Drümmer Sent: Friday, April 25, 2014 12:50 PM To: eci-en(a)lists.callassoftware.com Cc: Olaf Drümmer Subject: Re: [ECI-EN] Creating a new/own Working Space, which includes the colorspaces of mobile devices http://lmgtfy.com/?q=color+sync+group (Sorry for being a bit rude here but...) Olaf On 25 Apr 2014, at 18:40, Martin Kytzia <m.kytzia@uni-wuppertal.de<mailto:m.kytzia@uni-wuppertal.de>> wrote: Which "color sync" group you mean? Where can i find it? Thanks martin Von: Kamil Tresnak <kamil.tresnak@gmail.com<mailto:kamil.tresnak@gmail.com>> Antworten an: <eci-en@lists.callassoftware.com<mailto:eci-en@lists.callassoftware.com>> Datum: Freitag, 25. April 2014 15:02 An: <eci-en@lists.callassoftware.com<mailto:eci-en@lists.callassoftware.com>> Betreff: Re: [ECI-EN] Creating a new/own Working Space, which includes the colorspaces of mobile devices Hello Martin, it's obvious that you have problems with essential principles of color management; i suggest you read some good books (from Bruce Fraser, p.e.) and post your questions to color sync group, as there are some really great minds and are focused more to color managemt than this group; btw, your problem was widely discussed in color sync group. All the best Kamil On Fri, Apr 25, 2014 at 1:47 PM, Martin Kytzia <m.kytzia@uni-wuppertal.de<mailto:m.kytzia@uni-wuppertal.de>> wrote: Hello guys, I'm a student at the BU Wuppertal in Germany. I'm working on a project for Prof. Dr. Stefan Brües, with the main goal to create a new workingspace which includes the colorspaces of mobile devices like apple iphones/ipads. Therefore my question, how can i create a new/own workingspace? Which tools i need and how can i do this. My idea is it to do it like the "PRMG", to find the highest common<http://www.dict.cc/englisch-deutsch/common.html> factor<http://www.dict.cc/englisch-deutsch/factor.html> of the colorspaces of mobile devices and to create the workingspace on this basis. Could someone help me with more informations? Further i would to know, how could i create a linear relation between the primary colors in my own workingspace to get a neutral grey, when my primary colors have the same value? And how i create a equidistant workingspace? Additional i would to know, why is the gamma value and the whitepoint (D50 or D65) in working spaces fixed? What are the benefits? And what are the benefits of a workingspace with a linear relation between the primary colors and of equidistant between the colors? I hope someone can help me with answering these questions. I'm looking forward to hear from you guys. Best regards, Martin Kytzia _______________________________________________ ECI-EN mailing list ECI-EN@lists.callassoftware.com<mailto:ECI-EN@lists.callassoftware.com> http://lists.callassoftware.com/mailman/listinfo/eci-en _______________________________________________ ECI-EN mailing list ECI-EN@lists.callassoftware.com<mailto:ECI-EN@lists.callassoftware.com> http://lists.callassoftware.com/mailman/listinfo/eci-en _______________________________________________ ECI-EN mailing list ECI-EN@lists.callassoftware.com<mailto:ECI-EN@lists.callassoftware.com> http://lists.callassoftware.com/mailman/listinfo/eci-en

Thanks, i already profiled mobile devices and compered it with the eciRGB_v2 (see screenshot) Green: Samsung Galaxy S5 Blue: Tablet Sony Xepria Z2 Red: eciRGB_v2 I have tested much more mobile devices and the results look the same like with these two devices. So i think a new workingspace would be necessary because of new display technologies like AMOLED etc. But you’re right, the old iphones/ipads fit into the eciRGB_v2, but with the Generation later iPhone 5/iPad 4 it looks like above. Von: Dieter Dolezal &lt;ddolezal(a)hirte.de&gt; Antworten an: &lt;eci-en(a)lists.callassoftware.com&gt; Datum: Freitag, 25. April 2014 15:02 An: &lt;eci-en(a)lists.callassoftware.com&gt; Betreff: Re: [ECI-EN] Creating a new/own Working Space, which includes the colorspaces of mobile devices Hello Martin, just some additional information: I just did some Gamut visualization in Chromic Color Think Pro and compared eciRGB_V2 to an iPhone Display profile I found (from a trustworthy source). To make things short: The gamut of mobile devices is well inside the eciRGB_V2 color space. So I would recommend to just use eciRGB_V2 as Working Color Space. Best regards, Dieter Am 25.04.2014 um 13:47 schrieb Martin Kytzia &lt;m.kytzia(a)uni-wuppertal.de&gt;de>: Dieter Dolezal __________________________________________________ ____________________________________________________________________________ ____________________ Bernhard-Nocht-Straße 99, 20359 Hamburg Telefon: 040.51 49 74-69 Mobil: 0177.8 08 05 62 Fax: 040.51 49 74-99 ddolezal(a)hirte.de www.hirte.de <http://www.hirte.de/> Sitz: Hamburg, HRA 88314 Komplementär: Werner Hirte GmbH Beteiligungsverwaltung Sitz: Hamburg, HRB 56271 Geschäftsführer: Stefan Hirte, Christian Schmidt _______________________________________________ ECI-EN mailing list ECI-EN(a)lists.callassoftware.com http://lists.callassoftware.com/mailman/listinfo/eci-en

Hi all, I have performed multiple tests on portable device and this is my impression : The Ipad and other Apple devices try to match the sRGB standard. Google Nexus series try to match the sRGB standard. Samsung devices are the largest color space of portable device, the color space is bigger than EciRgbV2 color space. See the color gamut of iPad 3 Samsung note 2 and sRGB, EciRvbV2 here : https://drive.google.com/folderview?id=0B6fZKIpcupUCMzA0NjRXaGxUY2M&usp… ring For the measurement : • Eizo color navigator (need Eizo monitor). • dispcalGUI (opensource, free). • And others…. Warning, If you use Aquafadas or Adobe DPS, all the pictures are automatically converted to sRGB at export. If ou develop your own application (objectiveC or JAVA code), it depends on the device. My opinion : The EciRgvV2 color space is not good for working with portable device. Maybe this can help you. Best regards Hervé L. -- Hervé LYAUDET ALTAVIA Paris Color and workflow management. Color tool <https://play.google.com/store/apps/details?id=com.build.cie_calculator> De : Dieter Dolezal &lt;ddolezal(a)hirte.de&gt; Répondre à : &quot;eci-en(a)lists.callassoftware.com&quot; &lt;eci-en(a)lists.callassoftware.com&gt; Date : vendredi 25 avril 2014 15:02 À : &quot;eci-en(a)lists.callassoftware.com&quot; &lt;eci-en(a)lists.callassoftware.com&gt; Objet : Re: [ECI-EN] Creating a new/own Working Space, which includes the colorspaces of mobile devices Hello Martin, just some additional information: I just did some Gamut visualization in Chromic Color Think Pro and compared eciRGB_V2 to an iPhone Display profile I found (from a trustworthy source). To make things short: The gamut of mobile devices is well inside the eciRGB_V2 color space. So I would recommend to just use eciRGB_V2 as Working Color Space. Best regards, Dieter Am 25.04.2014 um 13:47 schrieb Martin Kytzia &lt;m.kytzia(a)uni-wuppertal.de&gt;de>: Hello guys, I’m a student at the BU Wuppertal in Germany. I’m working on a project for Prof. Dr. Stefan Brües, with the main goal to create a new workingspace which includes the colorspaces of mobile devices like apple iphones/ipads. Therefore my question, how can i create a new/own workingspace? Which tools i need and how can i do this. My idea is it to do it like the „PRMG“, to find the highest common <http://www.dict.cc/englisch-deutsch/common.html> factor <http://www.dict.cc/englisch-deutsch/factor.html> of the colorspaces of mobile devices and to create the workingspace on this basis. Could someone help me with more informations? Further i would to know, how could i create a linear relation between the primary colors in my own workingspace to get a neutral grey, when my primary colors have the same value? And how i create a equidistant workingspace? Additional i would to know, why is the gamma value and the whitepoint (D50 or D65) in working spaces fixed? What are the benefits? And what are the benefits of a workingspace with a linear relation between the primary colors and of equidistant between the colors? I hope someone can help me with answering these questions. I’m looking forward to hear from you guys. Best regards, Martin Kytzia _______________________________________________ ECI-EN mailing list ECI-EN(a)lists.callassoftware.com http://lists.callassoftware.com/mailman/listinfo/eci-en Dieter Dolezal __________________________________________________ ___________________________________________________________________________ _____________________ Bernhard-Nocht-Straße 99, 20359 Hamburg Telefon: 040.51 49 74-69 Mobil: 0177.8 08 05 62 Fax: 040.51 49 74-99 ddolezal(a)hirte.de www.hirte.de <http://www.hirte.de/> Sitz: Hamburg, HRA 88314 Komplementär: Werner Hirte GmbH Beteiligungsverwaltung Sitz: Hamburg, HRB 56271 Geschäftsführer: Stefan Hirte, Christian Schmidt

I think the ProPhoto RGB is to big for current colorspaces of mobile devices. We want to improve the rendering intent 0 (perceptual) like the PRMG (Perceptual Reference Medium gamut) does it in printing. This all is a seminar for us students and maybe there are lots of solutions, but we also try to learn something, for example how you can create a workingspace. In our different projects in our study we developed for example a tool with a GUI for profiling displays and cameras in particular of mobile devices. We also know, that colormanagemente isn’t supported yet on iOS and Android, if any only on application level. I'm just a student interested in this topic and trying to learn in a practical way. So thanks all for your help. Am 25.04.14 21:41 schrieb "Jan-Peter Homann" unter &lt;homann(a)colormanagement.de&gt;de>:

Martin, one more note - if you are interested in more detailed and technical discussion, you can find many infromation in argyll group http://www.freelists.org/archive/argyllcms All the best Kamil On Fri, Apr 25, 2014 at 10:32 PM, Martin Kytzia &lt;m.kytzia(a)uni-wuppertal.de&gt;wrote;wrote: