November 2019 - colorsync-users

X Rite Mac Tray App for screen profile reminders
by Paul Sherfield 28 Nov '19

28 Nov '19

Hi all Has anybody else noted that this little app now interferes with iOnePro connection to 3rd party colour management software’s if turned on. Regards Please note my mobile is now my main contact number: Mobile: + 44 7899 906385 http://www.missinghorsecons.co.uk http://twitter.com/#!/missinghorse Member - UK TC130 Technical Advisory Group (ISO 12647 Printing Standards) UK Expert: ISO TC130/Working Group 13 on certification of printing standards Chair – BPIF Colour Quality Scheme Certification Steering Group GDPR-Please let as know if you require a copy of our policy This email and any attachments may be confidential and are intended solely for the use of addressee. If you are not the intended recipient of this message, any disclosure, copying or other distribution is strictly prohibited and may be unlawful. If you have received this message in error, please notify the sender and delete all copies from your system. Email may be susceptible to data corruption, interception and unauthorised amendment. We do not accept liability for any such corruption, interception or amendment or the consequences thereof. We do not accept liability for any action or inaction by the recipient as a result of advice or information contained within this email. Paper is renewable, sustainable and the most recycled material in Europe. If you print this email, please recycle

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Re: X Rite Mac Tray App for screen profile reminders
by Paul Sherfield 28 Nov '19

28 Nov '19

Hi Karl Interesting, I have only seen this issue over the last couple of months. Luckily easy to fix😊 Hope all is well with you. Paul Sherfield The Missing Horse Consultancy Ltd 07899 906385 www.missinghorsecons.co.uk Follow us on: twitter.com/missinghorse GDPR As a micro company we are exempt from many areas, such as registration and fees. If you would like our full GDPR conformity statement please let us know. > On 28 Nov 2019, at 14:41, basicc(a)mac.com wrote: > > Hi Paul, > > not „now“, but for ages! > > > Best regards > Karl Koch > > > Ingenieurbüro > Dipl.-Ing. Karl Koch > Maistraße 18•82377 Penzberg - Germany•+49-172 8195356•kk(a)colormanagement.org • www.colormanagement.org • VAT-ID: DE325389806 > > > This email is confidential and legally privileged. The correspondence and information herein is intended solely for the addressee/s. Access to this email or documents attached to this email by anyone else is unauthorized and illegal. If you are not the intended recipient, any disclosure, distribution, copying or any action taken or omitted to be taken in dependence on it, is prohibited and unlawful. > > Am 28. Nov. 2019, 12:23 +0100 schrieb Paul Sherfield via colorsync-users <colorsync-users(a)lists.apple.com>: >> Hi all >> >> >> >> Has anybody else noted that this little app now interferes with iOnePro connection to 3rd party colour management software’s if turned on. >> >> >> >> Regards >> >> >> >> Please note my mobile is now my main contact number: >> Mobile: + 44 7899 906385 >> >> http://www.missinghorsecons.co.uk >> >> http://twitter.com/#!/missinghorse >> >> >> >> >> Member - UK TC130 Technical Advisory Group (ISO 12647 Printing Standards) >> UK Expert: ISO TC130/Working Group 13 on certification of printing standards >> Chair – BPIF Colour Quality Scheme Certification Steering Group >> >> >> GDPR-Please let as know if you require a copy of our policy >> >> >> This email and any attachments may be confidential and are intended solely for the use of addressee. If you are not the intended recipient of this message, any disclosure, copying or other distribution is strictly prohibited and may be unlawful. >> >> If you have received this message in error, please notify the sender and delete all copies from your system. Email may be susceptible to data corruption, interception and unauthorised amendment. >> >> We do not accept liability for any such corruption, interception or amendment or the consequences thereof. We do not accept liability for any action or inaction by the recipient as a result of advice or information contained within this email. >> >> Paper is renewable, sustainable and the most recycled material in Europe. If you print this email, please recycle >> >> >> >> >> >> >> _______________________________________________ >> 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/basicc%40me.com >> >> This email sent to basicc(a)me.com >> <image001.png>

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ViewOpen ICC -- very old monitor calibration software
by graxx＠videotron.ca 25 Nov '19

25 Nov '19

I know this is an odd question but would anyone happen to still have a copy of the measurements file generated by this software? For the purpose of experimenting, I installed this old “vintage” package on my WinXP machine. It works, but the rounded Sequel puck enclosed in the original box, plugged into the RS-232 port of this PC, does not respond ☹ I have no way to further test it. And that’s the ONLY colorimeter supported… The software has an option to “import” already measured values in the form of XYZ data but they don’t include a “sample” measurement file… There is an online Help which shows some of 32 XYZ measurements but no guidance on the corresponding RGB values. If only I could recreate the measurement file, I’d be home free… Any help is appreciated! / Roger Breton www.graxx.ca

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RE: Decoding ColorSync monitor profiles
by graxx＠videotron.ca 23 Nov '19

23 Nov '19

Oopsie, doopsie! I found the colorant tags (rXYZ, gXYZ and bXYZ) from which I was able to compute the chromaticities and (some) conversion to CIE Lab. Things are starting to make sense but I suspect I need to invert the Chromatic Adaptation Matrix to get to D50 CIE Lab values? Right now, the red primary rXYZ is showing as X 0.389 Y 0.219 Z 0.039 which translates to x = 0.6012 and y = 0.3385 (not the same values as those found in the "Native Display Information" tag, shown below, which was x = 0.5881 and y = 0.3333). Not that "far", mind you, which makes me suspect that if I was to invert the chromatic adaptation matrix, I'd probably be close to 0.5881, 0.3333? Forgive me for playing "sorcerer apprentice" out loud. / Roger Breton -----Original Message----- From: colorsync-users <colorsync-users-bounces+graxx=videotron.ca(a)lists.apple.com> On Behalf Of Roger Breton via colorsync-users Sent: Friday, November 22, 2019 9:33 PM To: ''colorsync-users?lists.apple.com' List' <colorsync-users(a)lists.apple.com> Subject: Decoding ColorSync monitor profiles I'm in the ColorSync Utility, on a MacBook Air, looking at the "Phosphor" tab (French MacOS 10.12.6) of the "Color LCD-77E200AD-B0E6..icc" profile. I'm intrigued by the displayed Red, Green, Blue and White chromaticities: x y ------ -------- --------- Red 0.5881 0.3333 Green 0.3229 0.5495 Blue 0.1542 0.0900 White 0.3127 0.3290 White chromaticities are easy to decode, this is straight Rec 709 HDTV D65. However, the red, green and blue chromaticities are not straight Rec 709. As you know, these chromaticities are incomplete without the Y = Luminance factor. Is there a way, mathematically, to compute the Y from the x and y? I'm using Robin Myers's excellent ColorConverter 2.2 to "guestimate" the Y by typing in the x and y values, and trial-and-error different Y factors, until I hit the "maximum" a* and b* for that color, to get at a "realistic" CIE Lab value. Please forgive my technical ignorance. For the red primary, I get the "max" a* with a Y = 55 value which gives a CIE Lab value of 79.04 90.28 54.12. Somehow, this "method" of mine does not make sense? I get a Chroma of 105 and a Hue angle of 31 degrees. Any help is appreciated. / Roger Breton _______________________________________________ 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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Decoding ColorSync monitor profiles
by graxx＠videotron.ca 23 Nov '19

23 Nov '19

I'm in the ColorSync Utility, on a MacBook Air, looking at the "Phosphor" tab (French MacOS 10.12.6) of the "Color LCD-77E200AD-B0E6..icc" profile. I'm intrigued by the displayed Red, Green, Blue and White chromaticities: x y ------ -------- --------- Red 0.5881 0.3333 Green 0.3229 0.5495 Blue 0.1542 0.0900 White 0.3127 0.3290 White chromaticities are easy to decode, this is straight Rec 709 HDTV D65. However, the red, green and blue chromaticities are not straight Rec 709. As you know, these chromaticities are incomplete without the Y = Luminance factor. Is there a way, mathematically, to compute the Y from the x and y? I'm using Robin Myers's excellent ColorConverter 2.2 to "guestimate" the Y by typing in the x and y values, and trial-and-error different Y factors, until I hit the "maximum" a* and b* for that color, to get at a "realistic" CIE Lab value. Please forgive my technical ignorance. For the red primary, I get the "max" a* with a Y = 55 value which gives a CIE Lab value of 79.04 90.28 54.12. Somehow, this "method" of mine does not make sense? I get a Chroma of 105 and a Hue angle of 31 degrees. Any help is appreciated. / Roger Breton

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[Complimentary Webinar ] Objective Metrics for Image Quality - Wed. Nov. 20
by Roberta Morehouse 19 Nov '19

19 Nov '19

Join us tomorrow for "Objective Metrics for Image Quality" presented by Peter D. Burns, Burns Digital Imaging and Image Science Associates, and Don Williams, Image Science Associates. This webinar introduces several objective image quality metrics developed for image capture systems (cameras and scanners). It presents ISO-defined methods for evaluating imaging performance and provides an understanding of how these methods are being adapted for emerging systems and standards in mobile, automotive (ADAS) machine-vision, and other applications. A brief preview of the short courses pertaining to this topic at IS&T's 2020 Electronic Imaging Symposium will be provided. Reserve your seat today! http://bit.ly/ImageQualityWebinar Wednesday, November 20, 2019 14:00 - 14:45 US Eastern Time (ET)

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Used X-Rite iSis for sale
by Nagy Péter 19 Nov '19

19 Nov '19

Dear List Users, I would like to sell my X-Rite iSis spectro. This is the ‘small one’, will be six years of age in December, and is in perfect condition. Used twice a month for reprofiling / iterating my two proofers. Do anybody have any idea how much it is worth? If someone needs it, I would be more than happy to sell it to fellow ColorSyncers. Kind regards, Peter Nagy Colorcom, Budapest

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[CALL FOR PAPERS] London Imaging Mtg | Submit by 13 Dec 2019
by Roberta Morehouse 06 Nov '19

06 Nov '19

The London Imaging Meeting (LIM) is a new yearly topic-based conference in imaging science with the 2020 theme "Future Colour Imaging". The conference seeks to attract and present new papers in the area of color imaging especially those, which will lead and seed future research directions. Paper submissions are due by 13 December 2019. The London Imaging Meeting 2020 (LIM 2020) 6-7 April 2020 Institute of Physics, London, UK www.imaging.org/LIM Questions? London(a)imaging.org Prospective authors should submit short-papers describing original work in technical areas related to color imaging on the following topics: * Color Science * Human Color Perception * Physics-based Computer Vision * Illumination * Image reproduction Submissions from scientists and engineers, as well as practitioners and graduate students, are encouraged. Visit http://bit.ly/LIM_2020 for submission details. Connect with our community! LinkedIn: IS&T CIC Group Twitter: @ImagingOrg #LondonImaging

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Re: Latest ISO-12647-2 Tone Value Increase specifications
by graxx＠videotron.ca 01 Nov '19

01 Nov '19

Hi Paul, Thanks for taking the time to reply. So, if I calibrate my crummy sheetfed press to Curve A TVIs, using Fogra39, I ought to pass certification with "flying colors"? I downloaded Fogra39L and looking at the 50% tints, for CMY, and I find the comparison to GRACoL quite interesting. Fogra39 50%C 75.62 -16.49 -26.67 GRACoL06C1 50%C 74.68 -17.15 -27.42 (very close to Fogra39) Fogra39 50%M 71.22 33.64 -7.28 GRACoL06C1 50%M 70.24 35.29 -6.03 (quite a difference in a*) Fogra39 50%Y 91.55 -4.01 41.02 GRACoL06C1 50%Y 91.66 -3.87 43.59 (slight difference in b*) Fogra39 50c/40m/40y 58.03 0.25 -1.10 GRACoL06C1 50c/40m/40y 57.54 -0.12 -1.42 (quite close to Fogra39) All that with 16% dot gain @50% on Fogra39? In other words, if I calibrate my HDM press to 16% TVI @50%, if my solids are close to the specified Lab values, and my substrate is not too far off the specified value, again, you say I stand good chances of hitting that 50c/40m/40y? / Roger -----Original Message----- Hi Roger Yes, you are correct in your thoughts, the TVI curves are the same for all colour in the 2013 version. Regards Paul Sherfield

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Re: colorsync-users Digest, Vol 16, Issue 86
by Paul Sherfield 01 Nov '19

01 Nov '19

Hi Roger Yes, you are correct in your thoughts, the TVI curves are the same for all colour in the 2013 version. Regards Paul Sherfield Please note my mobile is now my main contact number: Mobile: + 44 7899 906385 http://www.missinghorsecons.co.uk http://twitter.com/#!/missinghorse Member - UK TC130 Technical Advisory Group (ISO 12647 Printing Standards) UK Expert: ISO TC130/Working Group 13 on certification of printing standards Chair – BPIF Colour Quality Scheme Certification Steering Group GDPR-Please let as know if you require a copy of our policy This email and any attachments may be confidential and are intended solely for the use of addressee. If you are not the intended recipient of this message, any disclosure, copying or other distribution is strictly prohibited and may be unlawful. If you have received this message in error, please notify the sender and delete all copies from your system. Email may be susceptible to data corruption, interception and unauthorised amendment. We do not accept liability for any such corruption, interception or amendment or the consequences thereof. We do not accept liability for any action or inaction by the recipient as a result of advice or information contained within this email. Paper is renewable, sustainable and the most recycled material in Europe. If you print this email, please recycle On 31/10/2019, 19:00, "colorsync-users-bounces+paul=missinghorsecons.co.uk(a)lists.apple.com on behalf of colorsync-users-request(a)lists.apple.com" <colorsync-users-bounces+paul=missinghorsecons.co.uk(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. Latest ISO-12647-2 Tone Value Increase specifications (graxx(a)videotron.ca) ---------------------------------------------------------------------- Message: 1 Date: Thu, 31 Oct 2019 12:35:38 -0400 From: <graxx(a)videotron.ca> To: "''colorsync-users?lists.apple.com' List'" <colorsync-users(a)lists.apple.com> Subject: Latest ISO-12647-2 Tone Value Increase specifications Message-ID: <00ca01d59009$3b374140$b1a5c3c0$(a)videotron.ca> Content-Type: text/plain; charset="US-ASCII" While reviewing the latest ISO-12647-2 standard, I was stumped by the absence of an explicit specification for each process color "dot gain"? I have read and re-read and re-re-read each relevant sections of the standard to no avail? All there "seems" to be are references to the shape of the curves and the polynomial used to determine the TVIs (shown in Table 9) but nothing to the effect that there ought to be different aim values for each process colors? I am tempted to conclude that the specified TVI numbers are "common" to all four colors? But I hate to come up to that conclusion on my own. Best / Roger Breton www.graxx.ca ------------------------------ Subject: Digest Footer _______________________________________________ colorsync-users mailing list colorsync-users(a)lists.apple.com https://lists.apple.com/mailman/listinfo/colorsync-users ------------------------------ End of colorsync-users Digest, Vol 16, Issue 86 ***********************************************

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