I’ve always wondered when “enough is enough” as far as linearization iterations go. I put that in quotes as I know the answer, is perhaps, somewhat subjective based upon one’s own expectations regarding linearization.
For example below is a screen shot showing the results of a 2nd linearization. (To be specific I first printed the starter .quad; this generated a first linearization; which I think created a 2nd linearization from and the results are shown here).
As you can see form the red measurements line in the graph it is “pretty” linear. I would say it is smooth (as I ran the measured data through the 129steps cgats smoother tool (=2) first before plotting.
Can or should this be linearized again (I actually did make a 3rd linearization I have just not printed it yet)? You can also see from the individual ink curves that this 3rd linearization varies only slightly from the 2nd linearization; but then again the red measurements also indicate this.
So that is why in the title I am wondering if there is a “guard band” around a perfectly linear result that is acceptable? I have seen other posts on this forum showing perfectly linear results. I also recognize that these prints (and in this case Pd.) is a hand made process with many variables.