March 2017 - colorsync-users

Re: Colorsync-users Digest, Vol 14, Issue 14
by Malcolm Mackenzie 10 Sep '17

10 Sep '17

Hi Martin I did a few tests in i1P and confirm your findings. The "Intelligent Black" feature does odd thing when it thinks TAC should be low and the Max K separation/width is contributing to the low yellow. I've had issues with the settings for digital as have others online. I remade the profile with the same data and it was fine, so it's an i1P thing. I've never got an answer or seen one from X-Rite on the issue. Malcolm +44 (0)20 3239 3330 +44 (0)7910 413421 mm(a)colour-engine.com skype; print_and_proof LinkedIn <http://uk.linkedin.com/pub/malcolm-mackenzie/7/326/778/> Twitter <https://twitter.com/ColourEngineLtd> www.colour-engine.com TeamViewer Quick Support <https://get.teamviewer.com/xjv8qcf> On 6 March 2017 at 20:00, <colorsync-users-request(a)lists.apple.com> wrote: > Send Colorsync-users mailing list submissions to > colorsync-users(a)lists.apple.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.apple.com/mailman/listinfo/colorsync-users > or, via email, send a message with subject or body 'help' to > colorsync-users-request(a)lists.apple.com > > You can reach the person managing the list at > colorsync-users-owner(a)lists.apple.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Colorsync-users digest..." > > > Today's Topics: > > 1. Re: FOGRA52 & i1Profiler (Martin Orpen) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 06 Mar 2017 13:44:12 +0000 > From: Martin Orpen <martin(a)idea-digital.com> > To: "'colorsync-users?lists.apple.com' List" > <colorsync-users(a)lists.apple.com> > Subject: Re: FOGRA52 & i1Profiler > Message-ID: <3C5CA2A6-7570-4A90-925E-6C78A7403549(a)idea-digital.com> > Content-Type: text/plain; charset="utf-8" > > > > On 1 Mar 2017, at 00:21, Martin Orpen <martin(a)idea-digital.com> wrote: > > > > I’ve made some MaxK and Full Black profiles using both the supplied > FOGRA52.mxf and by importing the raw ECI data and they produce a Y channel > that has next to nothing in it if you use the profiles in Photoshop. > > > I guess that FOGRA52 isn’t that popular then? > > The PSO Uncoated v3 (FOGRA52) profile documentation says: > > > The profile was created using the Heidelberg Color > Tool 17 with the following settings: > black length 9 (starting point 10%) > black width 10 > total dot area 300% > maximum black 96% > > > I can’t get yellow values anywhere near those generated by this profile > using i1Profiler or ArgyllCMS. > > And nothing even remotely close to the neutral curves of the Heidelberg > perceptual rendering. > > So I gave up and separated to a custom built FOGRA47L instead and then > proofed the job to FOGRA52. > > I find it odd that the dark patch on the ECI/BVDM Gray Control Strip for > FOGRA52 is C62 M55 Y60 — an ink combination that the ICC profile is > incapable of producing... > > -- > Martin Orpen > Idea Digital Imaging Ltd >

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RE: Humble first video on color management
by Roger Breton 10 Mar '17

10 Mar '17

Sorry but, in the course of experimenting with "better" audio, I removed the initial video. The updated link with, hopefully, better audio is : https://www.youtube.com/watch?v=1lk_-dgNLtc&t=171s. I also add a few more videos... But I'm in the course of getting a "better" microphone than the Sennheiser PC230 I currently use. (I need to brush up on a lot of things ...) Again, sorry for the inconvenience... / Roger -----Original Message----- From: colorsync-users-bounces+graxx=videotron.ca(a)lists.apple.com [mailto:colorsync-users-bounces+graxx=videotron.ca@lists.apple.com] On Behalf Of Roger Breton Sent: Thursday, March 9, 2017 3:56 PM To: 'ColorSync' <ColorSync-Users(a)lists.apple.com> Subject: Humble first video on color management I could not resist passing this link, if you're interested in ICC Color Management, and are curious to explore as much as you can, within the resources that abound on the internet. This may interest you : https://www.youtube.com/watch?v=w4erT4f71J4 My voice is a little broken, as you'll see, and I stutter a bit but you'll get the idea. Overall, I think it's 20 minutes in length - oh boy! It's nothing out of this world. It's not even done on a Mac. But, the reason I created this humble application in the first place, was to help compare various monitor profiles. Thank you for your interest. There is a download link on the video page. Hope this is not deemed too much of a shameless plug. I intend to add more videos soon. Plenty of ideas. Just learning the rope... Best / Roger Breton www.graxx.ca _______________________________________________ Do not post admin requests to the list. They will be ignored. Colorsync-users mailing list (Colorsync-users(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/colorsync-users/graxx%40videotron.ca This email sent to graxx(a)videotron.ca

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Re: Humble first video on color management
by Armand Rosenberg 10 Mar '17

10 Mar '17

Roger, Your link gives the following YouTube message: "This video has been removed by the user. Sorry about that." Hmm. That's too bad... Armand

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RE: Humble first video on color management
by Roger Breton 10 Mar '17

10 Mar '17

Hi Martin, I have a bad sort of "cold", these days, which is partly extinguishing my voice. Believe it or not, in Camtesia, I have the Audio capture volume setting turned all the way up. Maybe it's my Sennheiser headphone/microphone that's not helping? But thank's to your feedback. I'll see what I can do to improve the situation. In the short term, that's the "best voice" I can offer :( I'll have to do some research on this mysterious "Roman Mars"? ... Best / Roger -----Original Message----- From: colorsync-users-bounces+graxx=videotron.ca(a)lists.apple.com [mailto:colorsync-users-bounces+graxx=videotron.ca@lists.apple.com] On Behalf Of Martin Orpen Sent: Thursday, March 9, 2017 6:37 PM To: 'colorsync-users?lists.apple.com' List <colorsync-users(a)lists.apple.com> Subject: Re: Humble first video on color management > On 9 Mar 2017, at 20:56, Roger Breton <graxx(a)videotron.ca> wrote: > > My voice is a little broken, as you'll see, and I stutter a bit but > you'll get the idea. Overall, I think it's 20 minutes in length - oh boy! Great to hear your voice Roger :) You sound great, but I had to put headphones on and sit in a quiet room to hear what you were saying. You need to increase the audio volume on your video. Double it even. You could become the Roman Mars of colour management! -- Martin Orpen Idea Digital Imaging Ltd,

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Humble first video on color management
by Roger Breton 09 Mar '17

09 Mar '17

I could not resist passing this link, if you're interested in ICC Color Management, and are curious to explore as much as you can, within the resources that abound on the internet. This may interest you : https://www.youtube.com/watch?v=w4erT4f71J4 My voice is a little broken, as you'll see, and I stutter a bit but you'll get the idea. Overall, I think it's 20 minutes in length - oh boy! It's nothing out of this world. It's not even done on a Mac. But, the reason I created this humble application in the first place, was to help compare various monitor profiles. Thank you for your interest. There is a download link on the video page. Hope this is not deemed too much of a shameless plug. I intend to add more videos soon. Plenty of ideas. Just learning the rope... Best / Roger Breton www.graxx.ca

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Re: Colorsync-users Digest, Vol 14, Issue 15
by Axel Robert 08 Mar '17

08 Mar '17

1. Re: Colorsync-users Digest, Vol 14, Issue 11 (Graeme Gill) Hello Graeme, what approach do you suggest? Do you think about Device Link profile? Whenever this method, should the result not be better with V4 ICC profiles instead of V2? Axel On 07/03/2017 21:00, "colorsync-users-bounces+axel.robert=ubisoft.com(a)lists.apple.com on behalf of colorsync-users-request(a)lists.apple.com" <colorsync-users-bounces+axel.robert=ubisoft.com(a)lists.apple.com on behalf of colorsync-users-request(a)lists.apple.com> wrote: Send Colorsync-users mailing list submissions to colorsync-users(a)lists.apple.com To subscribe or unsubscribe via the World Wide Web, visit https://lists.apple.com/mailman/listinfo/colorsync-users or, via email, send a message with subject or body 'help' to colorsync-users-request(a)lists.apple.com You can reach the person managing the list at colorsync-users-owner(a)lists.apple.com When replying, please edit your Subject line so it is more specific than "Re: Contents of Colorsync-users digest..." Today's Topics: 1. Re: Colorsync-users Digest, Vol 14, Issue 11 (Graeme Gill) 2. Re: Colorsync-users Digest, Vol 14, Issue 14 (Malcolm Mackenzie) 3. Re: FOGRA52 & i1Profiler [subject corrected] (Martin Orpen) ---------------------------------------------------------------------- Message: 1 Date: Tue, 07 Mar 2017 18:15:26 +1100 From: Graeme Gill <graeme2(a)argyllcms.com> To: "colorsync-users(a)lists.apple.com" <colorsync-users(a)lists.apple.com> Subject: Re: Colorsync-users Digest, Vol 14, Issue 11 Message-ID: <58BE5E0E.2060303(a)argyllcms.com> Content-Type: text/plain; charset=windows-1252 Axel Robert wrote: > I’m trying to answer according what I already read about the V4 ICC profiles. This is > related to the ICC White paper#2 March 2014: using the sRGB_ICC_v4_appearance.icc > profile and White Paper #26 Using the sRGB_v4_ICC_preference.icc profile. > > They both indicate a better use of rendering intents when comes the time to separate > from RGB to CMYK and a more precise definition of the PCS. There have been various attempts to show the potential of using the PRMG, but: 1) There's nothing to stop someone using the PRMG in a V2 profile. Indeed, some existing V2 profilers may have been doing something quite similar, and maybe the PRMG was an attempt to formalize this approach. 2) You can get even better gamut mapping results by creating a gamut mapping for a specific source profile -> destination profile combination, avoiding any intermediate Gamut. This doesn't require V4. Graeme Gill. ------------------------------ Message: 2 Date: Tue, 07 Mar 2017 10:45:58 +0000 From: Malcolm Mackenzie <mm(a)malcolmmackenzie.co.uk> To: colorsync-users(a)lists.apple.com Subject: Re: Colorsync-users Digest, Vol 14, Issue 14 Message-ID: <CAMKoG4ntkf=jUhctAfeajGcZamRZBd=LJVg=eKmD-qwFxua9hg(a)mail.gmail.com> Content-Type: text/plain; charset=UTF-8 Hi Martin I did a few tests in i1P and confirm your findings. The "Intelligent Black" feature does odd thing when it thinks TAC should be low and the Max K separation/width is contributing to the low yellow. I've had issues with the settings for digital as have others online. I remade the profile with the same data and it was fine, so it's an i1P thing. I've never got an answer or seen one from X-Rite on the issue. Malcolm +44 (0)20 3239 3330 +44 (0)7910 413421 mm(a)colour-engine.com skype; print_and_proof LinkedIn <http://uk.linkedin.com/pub/malcolm-mackenzie/7/326/778/> Twitter <https://twitter.com/ColourEngineLtd> www.colour-engine.com TeamViewer Quick Support <https://get.teamviewer.com/xjv8qcf> On 6 March 2017 at 20:00, <colorsync-users-request(a)lists.apple.com> wrote: > Send Colorsync-users mailing list submissions to > colorsync-users(a)lists.apple.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.apple.com/mailman/listinfo/colorsync-users > or, via email, send a message with subject or body 'help' to > colorsync-users-request(a)lists.apple.com > > You can reach the person managing the list at > colorsync-users-owner(a)lists.apple.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Colorsync-users digest..." > > > Today's Topics: > > 1. Re: FOGRA52 & i1Profiler (Martin Orpen) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 06 Mar 2017 13:44:12 +0000 > From: Martin Orpen <martin(a)idea-digital.com> > To: "'colorsync-users?lists.apple.com' List" > <colorsync-users(a)lists.apple.com> > Subject: Re: FOGRA52 & i1Profiler > Message-ID: <3C5CA2A6-7570-4A90-925E-6C78A7403549(a)idea-digital.com> > Content-Type: text/plain; charset="utf-8" > > > > On 1 Mar 2017, at 00:21, Martin Orpen <martin(a)idea-digital.com> wrote: > > > > I’ve made some MaxK and Full Black profiles using both the supplied > FOGRA52.mxf and by importing the raw ECI data and they produce a Y channel > that has next to nothing in it if you use the profiles in Photoshop. > > > I guess that FOGRA52 isn’t that popular then? > > The PSO Uncoated v3 (FOGRA52) profile documentation says: > > > The profile was created using the Heidelberg Color > Tool 17 with the following settings: > black length 9 (starting point 10%) > black width 10 > total dot area 300% > maximum black 96% > > > I can’t get yellow values anywhere near those generated by this profile > using i1Profiler or ArgyllCMS. > > And nothing even remotely close to the neutral curves of the Heidelberg > perceptual rendering. > > So I gave up and separated to a custom built FOGRA47L instead and then > proofed the job to FOGRA52. > > I find it odd that the dark patch on the ECI/BVDM Gray Control Strip for > FOGRA52 is C62 M55 Y60 — an ink combination that the ICC profile is > incapable of producing... > > -- > Martin Orpen > Idea Digital Imaging Ltd >

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Re: Colorsync-users Digest, Vol 14, Issue 11
by Axel Robert 07 Mar '17

07 Mar '17

Dear all, I’m trying to answer according what I already read about the V4 ICC profiles. This is related to the ICC White paper#2 March 2014: using the sRGB_ICC_v4_appearance.icc profile and White Paper #26 Using the sRGB_v4_ICC_preference.icc profile. They both indicate a better use of rendering intents when comes the time to separate from RGB to CMYK and a more precise definition of the PCS. I did not test yet. I am nevertheless going to do it. I will share my results asap. Regards, Axel On 24/02/2017 21:00, "colorsync-users-bounces+axel.robert=ubisoft.com(a)lists.apple.com on behalf of colorsync-users-request(a)lists.apple.com" <colorsync-users-bounces+axel.robert=ubisoft.com(a)lists.apple.com on behalf of colorsync-users-request(a)lists.apple.com> wrote: Send Colorsync-users mailing list submissions to colorsync-users(a)lists.apple.com To subscribe or unsubscribe via the World Wide Web, visit https://lists.apple.com/mailman/listinfo/colorsync-users or, via email, send a message with subject or body 'help' to colorsync-users-request(a)lists.apple.com You can reach the person managing the list at colorsync-users-owner(a)lists.apple.com When replying, please edit your Subject line so it is more specific than "Re: Contents of Colorsync-users digest..." Today's Topics: 1. Re: Colorsync-users Digest, Vol 14, Issue 10 (dmargulis) 2. Re: Colorsync-users Digest, Vol 14, Issue 9 (Graeme Gill) 3. Re: Colorsync-users Digest, Vol 14, Issue 9 (Andrew Rodney) 4. Colorsync-users Digest, Vol 14, Issue 9 (State of the Art in RGB profile). (Andrew Rodney) 5. Re: Colorsync-users Digest, Vol 14, Issue 9 (State of the Art in RGB profile). (Andrew Rodney) 6. RE: Colorsync-users Digest, Vol 14, Issue 9 (State of the Art in RGB profile). (Roger Breton) ---------------------------------------------------------------------- Message: 1 Date: Thu, 23 Feb 2017 22:39:45 +0100 From: dmargulis <dmargulis(a)aol.com> To: colorsync-users(a)lists.apple.com Subject: Re: Colorsync-users Digest, Vol 14, Issue 10 Message-ID: <2F9FEA53-0158-427F-96B8-F1A1ECB6EA8A(a)aol.com> Content-Type: text/plain; charset=windows-1252 On Feb 23, 2017, at 9:00 PM, colorsync-users-request(a)lists.apple.com wrote: > Send Colorsync-users mailing list submissions to > colorsync-users(a)lists.apple.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.apple.com/mailman/listinfo/colorsync-users > or, via email, send a message with subject or body 'help' to > colorsync-users-request(a)lists.apple.com > > You can reach the person managing the list at > colorsync-users-owner(a)lists.apple.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Colorsync-users digest..." > > > Today's Topics: > > 1. Re: Colorsync-users Digest, Vol 14, Issue 9 (Axel Robert) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 23 Feb 2017 11:53:19 +0000 > From: Axel Robert <axel.robert(a)ubisoft.com> > To: "colorsync-users(a)lists.apple.com" > <colorsync-users(a)lists.apple.com> > Subject: Re: Colorsync-users Digest, Vol 14, Issue 9 > Message-ID: <006F66DD-A666-475F-BA4D-75C045F7BA09(a)ubisoft.com> > Content-Type: text/plain; charset=utf-8 > > Hi Graeme, > > What I’ve read (technical papers on the color.org website) about V4 ICC profile seems to be better than the current V2 when comes time to convert in CMYK (using a CMYK V4 too). > > Axel > > On 21/02/2017 21:00, "colorsync-users-bounces+axel.robert=ubisoft.com(a)lists.apple.com on behalf of colorsync-users-request(a)lists.apple.com" <colorsync-users-bounces+axel.robert=ubisoft.com(a)lists.apple.com on behalf of colorsync-users-request(a)lists.apple.com> wrote: > > Send Colorsync-users mailing list submissions to > colorsync-users(a)lists.apple.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.apple.com/mailman/listinfo/colorsync-users > or, via email, send a message with subject or body 'help' to > colorsync-users-request(a)lists.apple.com > > You can reach the person managing the list at > colorsync-users-owner(a)lists.apple.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Colorsync-users digest..." > > > Today's Topics: > > 1. Re: Colorsync-users Digest, Vol 14, Issue 8 > (layarza(a)litholaser.com) > 2. Re: State of the Art in RGB profile. (Graeme Gill) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 20 Feb 2017 15:03:35 -0500 > From: layarza(a)litholaser.com > To: colorsync-users(a)lists.apple.com > Subject: Re: Colorsync-users Digest, Vol 14, Issue 8 > Message-ID: <react-83725866(a)litholaser.com> > Content-Type: text/plain; charset=utf-8 > > Estaré ausente de la oficina desde el 1 de febrero al 15 de Febrero, por favor cualquier consulta comunicarse al anexo de Soporte Lago - 7777 Con Andy Carranza, Gracias. > > > ------------------------------ > > Message: 2 > Date: Tue, 21 Feb 2017 13:06:19 +1100 > From: Graeme Gill <graeme2(a)argyllcms.com> > To: "colorsync-users(a)lists.apple.com" > <colorsync-users(a)lists.apple.com> > Subject: Re: State of the Art in RGB profile. > Message-ID: <58ABA09B.2080202(a)argyllcms.com> > Content-Type: text/plain; charset=windows-1252 > > Axel Robert wrote: > > Hi, > >> According to the latest update provided on the color.org website, it seems that >> sRGB_V4 would (should) be a good reference profile. > > what are your technical reasons for moving to V4 though ? > >> But, in PDF/X workflows, Ghent Work Group Process Control subcommittee previously >> recommended restricting ICC profiles in PDF/X to those made to the older v2 specification. > > Right - since technically, V4 doesn't add a whole lot (some extra per channel > curve types, better internationalization support of meta-data) and has > some disadvantages (elimination of absolute colorimetric support for > display profiles with standard CMMs, confusion about L*a*b* encoding, > confusion about the black point), it's understandable if wider compatibility > is more important than "having the latest". > > Graeme Gill. > > > ------------------------------ > > _______________________________________________ > Colorsync-users mailing list > Colorsync-users(a)lists.apple.com > https://lists.apple.com/mailman/listinfo/colorsync-users > > End of Colorsync-users Digest, Vol 14, Issue 9 > ********************************************** > > > > > > ------------------------------ > > _______________________________________________ > Colorsync-users mailing list > Colorsync-users(a)lists.apple.com > https://lists.apple.com/mailman/listinfo/colorsync-users > > End of Colorsync-users Digest, Vol 14, Issue 10 > *********************************************** ------------------------------ Message: 2 Date: Fri, 24 Feb 2017 09:36:47 +1100 From: Graeme Gill <graeme2(a)argyllcms.com> To: ColorSync <ColorSync-Users(a)lists.apple.com> Subject: Re: Colorsync-users Digest, Vol 14, Issue 9 Message-ID: <58AF63FF.5050809(a)argyllcms.com> Content-Type: text/plain; charset=windows-1252 Axel Robert wrote: > What I’ve read (technical papers on the color.org website) about V4 ICC profile seems > to be better than the current V2 when comes time to convert in CMYK (using a CMYK V4 too). I'm not aware of any such advantage. Can you point me to something specific ? Graeme Gill. ------------------------------ Message: 3 Date: Thu, 23 Feb 2017 16:24:53 -0700 From: Andrew Rodney <andrew(a)digitaldog.net> To: ColorSync <ColorSync-Users(a)lists.apple.com> Subject: Re: Colorsync-users Digest, Vol 14, Issue 9 Message-ID: <5DCC882A-569F-4F6E-80C0-BD4081AD3E05(a)digitaldog.net> Content-Type: text/plain; charset=utf-8 > On Feb 23, 2017, at 3:36 PM, Graeme Gill <graeme2(a)argyllcms.com> wrote: > > Axel Robert wrote: > >> What I’ve read (technical papers on the color.org website) about V4 ICC profile seems >> to be better than the current V2 when comes time to convert in CMYK (using a CMYK V4 too). > > I'm not aware of any such advantage. Can you point me to something specific ? > > Graeme Gill. Me either and further, what V4 output profile even supports the PRMG? V4 ICC profiles are more often harmeful than good depending on the software product (at least in the past, Lightroom had issues with em). Andrew Rodney http://www.digitaldog.net/ ------------------------------ Message: 4 Date: Thu, 23 Feb 2017 16:51:43 -0700 From: Andrew Rodney <andrew(a)digitaldog.net> To: ColorSync <ColorSync-Users(a)lists.apple.com> Subject: Colorsync-users Digest, Vol 14, Issue 9 (State of the Art in RGB profile). Message-ID: <F4D29E93-BC9D-4A4E-8E98-2540E1F71A92(a)digitaldog.net> Content-Type: text/plain; charset=us-ascii Took measurement data and built two RGB profiles identically except for the version (V2 vs. V4) in i1Profiler. Converted one image using both (Perceptual), compared the differences in ColorThink Pro. There IS a difference but not a lot! -------------------------------------------------- dE Report Number of Samples: 78900 Delta-E Formula dE2000 Overall - (78900 colors) -------------------------------------------------- Average dE: 1.09 Max dE: 2.22 Min dE: 0.00 StdDev dE: 0.32 Best 90% - (71009 colors) -------------------------------------------------- Average dE: 1.04 Max dE: 1.46 Min dE: 0.00 StdDev dE: 0.29 Worst 10% - (7891 colors) -------------------------------------------------- Average dE: 1.55 Max dE: 2.22 Min dE: 1.46 StdDev dE: 0.09 -------------------------------------------------- -------------------------------------------------- Andrew Rodney http://www.digitaldog.net/ ------------------------------ Message: 5 Date: Thu, 23 Feb 2017 16:58:34 -0700 From: Andrew Rodney <andrew(a)digitaldog.net> To: ColorSync <ColorSync-Users(a)lists.apple.com> Subject: Re: Colorsync-users Digest, Vol 14, Issue 9 (State of the Art in RGB profile). Message-ID: <9E4F6D3F-6B7D-4F78-A17B-050E81AAF127(a)digitaldog.net> Content-Type: text/plain; charset=us-ascii Same test, using RelCol. V2 versus V4 profile being the only difference: -------------------------------------------------- dE Report Number of Samples: 78900 Delta-E Formula dE2000 Overall - (78900 colors) -------------------------------------------------- Average dE: 0.07 Max dE: 2.87 Min dE: 0.00 StdDev dE: 0.11 Best 90% - (71009 colors) -------------------------------------------------- Average dE: 0.05 Max dE: 0.15 Min dE: 0.00 StdDev dE: 0.03 Worst 10% - (7891 colors) -------------------------------------------------- Average dE: 0.32 Max dE: 2.87 Min dE: 0.15 StdDev dE: 0.23 -------------------------------------------------- -------------------------------------------------- Andrew Rodney http://www.digitaldog.net/ ------------------------------ Message: 6 Date: Thu, 23 Feb 2017 19:24:50 -0500 From: Roger Breton <graxx(a)videotron.ca> To: "'ColorSync'" <ColorSync-Users(a)lists.apple.com> Subject: RE: Colorsync-users Digest, Vol 14, Issue 9 (State of the Art in RGB profile). Message-ID: <709301d28e34$69d97bf0$3d8c73d0$(a)videotron.ca> Content-Type: text/plain; charset=US-ASCII In my very humble experience, if I can throw my two cents here, V2 and V4 *output* profiles are the same unlike display profiles. / Roger -----Original Message----- From: colorsync-users-bounces+graxx=videotron.ca(a)lists.apple.com [mailto:colorsync-users-bounces+graxx=videotron.ca@lists.apple.com] On Behalf Of Andrew Rodney Sent: Thursday, February 23, 2017 6:59 PM To: ColorSync <ColorSync-Users(a)lists.apple.com> Subject: Re: Colorsync-users Digest, Vol 14, Issue 9 (State of the Art in RGB profile). Same test, using RelCol. V2 versus V4 profile being the only difference: -------------------------------------------------- dE Report Number of Samples: 78900 Delta-E Formula dE2000 Overall - (78900 colors) -------------------------------------------------- Average dE: 0.07 Max dE: 2.87 Min dE: 0.00 StdDev dE: 0.11 Best 90% - (71009 colors) -------------------------------------------------- Average dE: 0.05 Max dE: 0.15 Min dE: 0.00 StdDev dE: 0.03 Worst 10% - (7891 colors) -------------------------------------------------- Average dE: 0.32 Max dE: 2.87 Min dE: 0.15 StdDev dE: 0.23 -------------------------------------------------- -------------------------------------------------- Andrew Rodney http://www.digitaldog.net/ _______________________________________________ Do not post admin requests to the list. They will be ignored. Colorsync-users mailing list (Colorsync-users(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/colorsync-users/graxx%40videotron.ca This email sent to graxx(a)videotron.ca ------------------------------ _______________________________________________ Colorsync-users mailing list Colorsync-users(a)lists.apple.com https://lists.apple.com/mailman/listinfo/colorsync-users End of Colorsync-users Digest, Vol 14, Issue 11 ***********************************************

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FOGRA52 & i1Profiler
by Martin Orpen 06 Mar '17

06 Mar '17

Anybody made any profiles from the FOGRA52 data using i1Profiler? I’ve made some MaxK and Full Black profiles using both the supplied FOGRA52.mxf and by importing the raw ECI data and they produce a Y channel that has next to nothing in it if you use the profiles in Photoshop. If I plot the neutrals from the same profiles in Argyll’s xicclu the yellow behaves as you’d expect, but a conversion in Photoshop is completely messed up in yellow :( Thoughts? -- Martin Orpen Idea Digital Imaging Ltd

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