[Tool] ChromIQ – a macOS and Windows GUI for ArgyllCMS printer profiling (v3.13.0-beta)

[itsab1989]

Ok i finally found the bug (unless your intent @itsab1989 was that)

all the settings in Chromiq Preferences panel that i change (for example in Chart Layout, font, size, offset and all the rest) are not applied at the chart i'm creating, i need to change the values, exit from Chromiq, relaunch it and now all the settings will be active, but if i need to change a value, i need to change it, exit Chromiq, start it again and now it works.

Hope it can help you to debug

Thanks for your detailed report. And sorry that I did not pay more attention to this before. At this very moment an update should be on GitHub that improves on this and now you should be able to apply changes to those settings without closing and restarting the app - clicking OK in the settings should be enough.

Edit: well give it 5 minutes to finish maybe

 

[mavtop]

Thanks for your detailed report. And sorry that I did not pay more attention to this before. At this very moment an update should be on GitHub that improves on this and now you should be able to apply changes to those settings without closing and restarting the app - clicking OK in the settings should be enough.

Edit: well give it 5 minutes to finish maybe

View attachment 19012

no worry @itsab1989 i suspect you have also a life over Chromiq

anyway thanks for your speed i will download as soon as i will be able to do

 

[mavtop]

now it works perfectly, thanks again

i have another question what means this

 

[itsab1989]

We found that non-randomized charts can sometimes cause issues when measuring them and chartread might then not be able to reliably figure out in which direction a strip has been read or where one patch ends and the next one starts.
Randomization improves this quite a lot and should eliminate this error. However since it randomization is - well - random there is still a chance that you run into a combination where things might be a little difficult.
We try to take care of this so when you randomize it tries to figure out a good seed where it minimalises this risk but from a certain of patches you can‘t avoid a certain similarity anymore. However the most important thing is that two patches next to each other are not too similar and that each strip looks different from both directions. The warning it gives you also takes into account that for example strip B and AF have some similarity but in reality they should never mismatch because you have to read them in a strict order anyway.

 

[mavtop]

We found that non-randomized charts can sometimes cause issues when measuring them and chartread might then not be able to reliably figure out in which direction a strip has been read or where one patch ends and the next one starts.
Randomization improves this quite a lot and should eliminate this error. However since it randomization is - well - random there is still a chance that you run into a combination where things might be a little difficult.
We try to take care of this so when you randomize it tries to figure out a good seed where it minimalises this risk but from a certain of patches you can‘t avoid a certain similarity anymore. However the most important thing is that two patches next to each other are not too similar and that each strip looks different from both directions. The warning it gives you also takes into account that for example strip B and AF have some similarity but in reality they should never mismatch because you have to read them in a strict order anyway.

Ok now i understood that, i would like to use always the same seed to create the profiles so i can then in case i need know from what chart i started

i have a lot of paper to profile (i bought a stock of several, about 50, different papers and about 12 rolls of paper that i need to profile) so using the same chart i can easily also figure how a paper will render some colors (or i hope to figure)

 

[itsab1989]

50? Really?

The funny thing is that Knut and I spent so much time developing this GUI, yet we don‘t really do much profiling ourselves. For my personal needs I have created 2 paper profiles - one for plain paper to try our the process and one for the photo paper that I like to use. And those were not even created with ChromIQ

But I hope that ChromIQ will make the process easier for. Then I would call it a success!

 

[Alan G]

Ok now i understood that, i would like to use always the same seed to create the profiles so i can then in case i need know from what chart i started

i have a lot of paper to profile (i bought a stock of several, about 50, different papers and about 12 rolls of paper that i need to profile) so using the same chart i can easily also figure how a paper will render some colors (or i hope to figure)

I've been a beta tester on this project from almost the beginning I have used Argyll to profile papers since 2008 and probably have profiled 30 different papers during this time. I don't do much profiling these days as I have settled on five papers that I really like and that are good for the type of prints I like to make. My suggestion is that you use the 1944 extended patch set that The Pharmacist developed. I compared profiles from that with the one I have been using since 2019 for Moab Entrada Natural. That profile was created using a preconditioning profile followed by a larger patch set generated from that. The Pharmacist patch set was in every way equial to the earlier one when I compared prints made using the two. I don't rely on soft proofing images to judge the profile as they are just too crude. The nice thing about the extended patch set is you don't have to print patches twice.

All my measurements were with an i1 Pro Rev D.

 

[mavtop]

Hi all and thanks for the hints you gave me, for now i will try with the 700 patch target (by @pharmacist) and i will compare against a 800 more patch target i created the first time with argyll cms manually.

For @itsab1989 i don't know if it is a feature, but if i reload a ti2 file to continue a project, it will reset the patches number to the default one 4xx (i don't remember the value), like if in the project specifications was not written all the information (or maybe in the load it will not read or set the values correctly), so i need to set the patch size, the colored/bw spacers and all the values that i have set when i generated the chart initially, also the chart notes are blank, while i had filled them.

Maybe i need to tell Chromiq to save the settings in some way ?

10m ago i discovered that my new mac has only USB-C ports so i can't use my i1pro1 to scan the patches (argggggggg i was so excited to try chromiq and the @pharmacist ruler), i will have to wait for the USB-C->USB A female adapter and hope it will work with i1pro1 devices.

Attached is the load of a 700 chart patches with path size 8mm and 95% patch height, no chart notes, i had removed stamp targen and layout engine, paper say Portrait but it is landscape, clip border was off and say on, instrument margin are the default i had changed them, it as fixed seed 142 and it now says random and no seed selected with number 0.

All the modified options for that chart layout are lost.

 

[mavtop]

for @pharmacist the printed charted is just a tiny smaller for your ruler, i hope it will read the patches the same without errors.

 

[pharmacist]

@mavtop : smaller chart is no problem, too long is a problem as the spectro cannot start/land on white paper. If the patch height is slightly lower than about 8 mm it is still ok, provided you center the gap in between (so the scanning eye will emcompass the whole colour width, even you see above and below the adjacent strips). Something like below is ok: just make sure the central row is in the middle. The reason is the gap for the i1Pro1 is 9 mm wide, but narrower should be ok with some care in scanning.