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Digital BW, The Print

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Re: [Digital BW] Pooling VM transfer curves (was Random musing on VM, profiling, and transfer curves)

2002-05-09 by Robert G. Morrison

While this is a good idea...you will not be achieving the optimal ink load
for each paper...once again a limit of the Epson driver...it is a good cheap
solution, however.

Robert

On 5/8/02 5:43 PM, "Peter Marquis-Kyle" <petermk@...> wrote:

> Paul Roark wrote
> 
>> My original hope was that people could do paper profiles as Transfer
>> Functions to be applied after the usual variable-tone curve was applied.  I
>> did a rough one for Somerset Enhanced, for example.
>> 
>> I never envisioned everyone tweaking the curves.
>> 
>> I think the primary failure of the vm approach is that there has been no
>> pooling of such profiles, which I anticipated would happen.  Admittedly, the
>> transfer function tool is crude, which could be part of the problem.
>> However, I thought that doing rough profiles by just printing a 21-step test
>> file and correcting for the amount by which the steps are off would be easy
>> enough that people would just do it manually.
> 
> I am keen to contribute to the pool, if it's within my capabilities.
> 
> Paul, do you have a step-by-step description of the process? I imagine it
> involves printing stepped gradients on the paper to be 'profiled', and making
> iterative changes to the transfer function to match the printout to a
> standard?
> 
> Is a flatbed scanner a sufficient measuring device? (I don't have a
> densitometer
> in my kit, or in my budget).
> 
> Can you suggest some papers that would benefit from transfer functions?
> 
> Anyone else willing to share?
> 
> Peter Marquis-Kyle

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