[Tool] ChromIQ – a macOS and Windows GUI for ArgyllCMS printer profiling (v3.9.0)

[pkk]

Send them and I‘ll let Claude check. Maybe it finds a hint.

Okay, i just read Claude's report. He has mostly good news but I'm going to have to be led through by the hand to understand exactly what happened to avoid it happening again. Claude's explanation does not jive with the workflow I've seen.

The NatMatteV2 profile that you sent was not built from the measurement next to it. Your reading of that chart is actually very good — when I built a profile straight from your measurement data, it came out excellent too. The problem is that the .icc profile file you had was an older, leftover profile from before; it was never rebuilt from your final reading, so the profile and the measurement didn't match. A mismatched profile like that behaves badly even when the underlying measurement is perfect — which is exactly what you saw.

Why this can happen: in ChromIQ, measuring a chart and building the profile are two separate steps. After you finish reading all the strips, the app guides you to the Build Profile tab — but it stops there on purpose, because that tab is where you can adjust the profile settings before creating the ICC. You then have to click Build Profile on that tab to actually generate (or regenerate) the profile. If that final "Build" click doesn't happen — for example after re-reading a chart — the folder keeps the previous profile, and that older one is what gets used.
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▎ So the simple rule going forward: whenever you measure or re-measure a chart, finish by clicking "Build Profile" on the Build Profile tab to create a fresh ICC from that reading. That guarantees the profile always matches the measurement it came from.

I went back & tried to build another profile from some of my failures without success. There is only one T3 file to be used so i don't see what he is doing. I've attached two more sets of files if Claude would like to try them. In both of these I'm sure there is only one measurement file. Any chance my Argyll is corrupted? Thanks again.