[Tool] ChromIQ – a macOS and Windows GUI for ArgyllCMS printer profiling (v3.0.0 beta 10)

itsab1989

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I just wanted to post you the questions that AI gave me :)
So is it working as intended now?

Edit: I just released 3.5.10 with improvements in the measure tab. I have a feeling though that the patch consistency settings default is too strict. I mean the user can change it but it might cause confusion.


I'll post the AI text anyway in case it might be useful:

Thanks for the detailed report — I tried to reproduce on my end (Windows, 240-patch RGB chart with a preconditioning
profile, sRGB.icm as -S source) and the build completed cleanly, so I need a bit more info from you to pin this down.

A few things I noticed:

1. The colprof warnings on their own are harmless. Warning - gammap internal: input bounds has changed! is ArgyllCMS's
gamut-mapping optimizer adjusting its working bounds mid-iteration. It's noisy but doesn't normally break the
profile. However, many repetitions of it combined with a profile that iccview.de rejects suggests the underlying .ti3
measurements are off — gammap is reacting to outlier data, not causing it.

2. Your ArgyllCMS lives at C:\ArgyllCMS\bin — that's a manual install location. ChromIQ auto-detects C:\Program
Files\ArgyllCMS\bin and %LOCALAPPDATA%\ArgyllCMS\bin, so you must have pointed it there in Preferences. Which version
is it? Run C:\ArgyllCMS\bin\colprof.exe -? and the first line will show the version — I'd like to make sure it matches
ChromIQ's tested 3.5.0.

3. The hang during chart generation with a preconditioning profile is the part I most want to understand. targen -c
<profile> can take a while, but it shouldn't lock up. If the preconditioning .icc is malformed, targen can spin for a
long time trying to invert the CLUT.

To dig in, could you share:

1. The output of C:\ArgyllCMS\bin\colprof.exe -? (just the version line)
2. Where the preconditioning profile came from — a previous ChromIQ run, or imported from somewhere else?
3. The .ti3 file and the preconditioning .icc, attached or zipped
4. The ChromIQ log file (%LOCALAPPDATA%\ChromIQ\logs\chromiq.log or wherever it lands on your system)
5. Your targen settings for that run — patch count, grey steps, good-mode on/off

Once I can see the .ti3 I should be able to tell whether this is a measurement-data issue, a preconditioning-profile
issue, or something in ChromIQ's pipeline staging the file wrong.


Edit 2: Light mode added in 3.6.0

IMG_0224.png
 
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pharmacist

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Thanks for the update. I find the light version almost unreadable, because the letters are so light in my case.

1779022590849.png


But I still cannot get a good profile, despite 600 patches:

I get a very strange flatten 3D profile:

1779022658071.png


The profile is unusable when I try soft proofing checked:

1779022877866.png
 

itsab1989

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Wow, this looks horrible...
1. I added a light mode because somewhere else someone was complaining that the dark theme would hurt his eyes. Might still need some work probably.

2. I would need the exact steps you took to try and reproduce this to figure out what went wrong here. Best would be to have the data from the log file and maybe even the files that were created.
 

pharmacist

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The latest version also removes the scanning arrow (showing which row is being read by the spectro), that was present in the previous version: it was very convenient to show which row is being read, especially in the new version the contrast is so low I can hardly read the letters in the command window in the lower left side.
 
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