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Nope, sorry, I've never seen that happen in all the years I've been working there - the dots were always round. You can see that under a microscope.

From what you are describing, you have a press color repeatability problem, not a color management one. A color management system relies on stability and repeatability of the printing press. Meaning, if your press is not behaving in a consistent manner - or more importantly, cannot be calibrated...

I'm a Landa employee, part of the process and algorithms team, and was at Drupa for 3 weeks during the setup and the entire show, preparing the jobs and performing quality calibrations on all presses. And sorry, nothing of that is true - it's certainly not a fact. All the presses were printing...

Sorry, don't have Quark but in order to use the output device's widest color capabilities, you need to keep all Pantone colors and RGB images as-is. Meaning: - Keep Pantone colors as spot channels. Their alternate color space (RGB, CIELab etc.) doesn't matter as long as they have proper names...

Yes, he's most likely asking about flexography. The opacity of the white ink in such technologies should be at least 60%. There's a standard method of measuring the opacity, using a spectrophotometer and a special white and black sheet.

Does your pharmaceutical client require you to hit the same density on several substrates? If the answer is yes, then do what your client requires. Establish a workflow, print the targets using that workflow and measure them. You keep asking about the anilox rollers. I have no idea - I'm not a...

Your pre-press guys are wrong. You don't need to achieve the same density on all substrates. You need to achieve a stable, repeatable process on every substrate on its own. Do whatever you need to achieve that. If you need to hit a specific CIELab or density target, as part of adhering to an ISO...

Hi Luka, You need to print the ICC profile targets on your substrates, using the normal workflow you use for them every day. If you need to replace anilox rollers between substrates, do it. Your workflow needs to be repeatable and consistent - that is the most important factor in color...

It appears the substrate you are using is more blue than the reference. It shifts your entire gamut in the -b* direction. Don't know if that's the definite answer for your question, though.

I don't think this is possible without extensive programming on your part. There are various color models that can predict CIELab values from a small set of measurements - Clapper-Yule, Kubelka-Munk etc. Using these, you could simulate a measurements file (CGATS or other format) that contains...

Are the first and second clauses even legal in your country? Will they hold in court if they sue you? To me it sounds like they are printing confidential material and don't want the printed contents to be seen in multiple sites. Is that the case? If not, their paranoia is really strange.

I love the open source community and projects, but I'm disappointed with everything related to desktop publishing or the graphic arts. Inkscape and Gimp support only RGB or grayscale color spaces, with no support for CMYK or "higher" spaces in the near future. Color management in both is sketchy...

Well, maybe strange is not the right word for it. I got high delta-E values in the round-trip transformations, and uneven areas in the Granger rainbow image, compared to the IT8 target. I haven't done any thorough investigation, so it might have been a local problem. My suggestion to donster is...

In addition to what arossetti wrote, I'd love to see the measurement data (.it8 file) of both the calibration and the profile steps. If you are going to try profiling again anyway, I'd suggest against the 4028 patches target - I got some strange results with it. Maybe the patch distribution is...

That is normal and expected. That is also expected. The effect of the lamination film is not linearly proportional across the color gamut. Well, I'd argue that the entire point of color management is that you won't need to make manual adjustments to colors in order to match a reference...

Sorry, what do you mean by "it is too difficult, I can not match the color-after-laminating with a ink-jet proofing"? What exactly are the problems you're facing? I've measured laminated patches in the past and I don't remember any special problems with that.

Believing in absolutes and nostalgia prevents you from adapting to a changing universe. Everything ends - "this too shall pass", as they say, and conservatism in this case can be dangerous - you become unprepared for surprises. In some cases you are left as an expert or specialist in some area...

Mike, I'm not insisting I am right - I'm just pointing something that in my intuition and logic seems wrong. The color scientist in my team also agrees that something looks strange in the profile. I'm simply trying to find out if anyone else had seen this behavior. I did the conversions using...

Regarding the black usage: as I've written above, I tried to change the black settings in i1Profiler, using a medium or maximum curve, and even using "Full Black Separation" (which I presume is full strength GCR), to no avail. The changes in black usage were minimal - several percentages...

Tim, Mike, Thank you for your input. I've had a go with EFI's Color Profiler Suite. For the discussed CIELab values, I get this conversion: C98 M6 Y0 K35 O0 G0 B89. So there. I understand your arguments, Mike, but still it feels more logical and intuitive to me that a deep blue color should...