You don't need much patches to create a good printer profile

[pharmacist]

OK, I will have a check. Maybe you can tell me which patches are doubles, so I can change them. Thanks for the feedback.

 

[Ink stained Fingers]

PaintShop just gives me the number of unique colors - nothing more - no value or location in an image file whatever.

But I could find a way to export the patch file data from the i1Profiler editor as a tab separated text file with the RGB values but again no location data within the patch sheet but it most likely arranged in a left-right - top - down scheme in a sequential table.

 

[pharmacist]

I think I might have found the doubles and removed them. I think these are the last 6 RGB patches (with different hues) before the near neutral patches. I replaced them with extra near neutral patches. The pink outlined boxes are the doubles I have detected.

The new target looks like now:

 

[Ink stained Fingers]

You got it - it's 192 different colors

 

[Ink stained Fingers]

@pharmasist - it works - I printed your 192 patchsheet on a 10x15 cm card and scanned it with the i1io2 robot - it works !!! - that was some great work you did to create the necessary parameter files and patch sheet.

 

[pharmacist]

@pharmasist - it works - I printed your 192 patchsheet on a 10x15 cm card and scanned it with the i1io2 robot - it works !!! - that was some great work you did to create the necessary parameter files and patch sheet.

I hope you will report back and see how this target will perform compared to a larger patch size target like 729 or even 2880 patches. If the average difference will fall under Delta-E 1, than it is practically indistiguishable compared to much larger targets. The 165 patch target was already satisfactory (thinking it has a few doubles too, making it a 159 patch target). I think it has twice the amount of patches of your 96 target. Note: GretagMacbeth original simple printer target has only 45 patches (eye-one match):

 

[Ink stained Fingers]

I expect a marginal change for the DeltaE 165 vs. 192 - value only - in the range of reading noise/variations behind the decimal point. Let me see.