QTR-Quadtone RIP

Susan,

Sorry I just don't have the time to walk you though this in detail.

You might be better using Eric's 3800 ABW ICC profiles available here.
http://people.csail.mit.edu/ericchan/dp/Epson3800/abwprofiles.html

Or if you really want to create your own profiles, at least use his
recommended settings and it should give you an ink load that's
acceptable to QTR Create ICC.

Mike



2008/10/10 slcphoto73 <slchapin@...>:
> Thanks, Michael. I might be putting down too much ink; I'll try
> adjusting that. What would your recommendation be for how, using the
> Epson ABW driver on a 3800?
>
> If I want to try your Excel trick, so I can see what is out of order
> without relying on create-icc.exe, (I am very ignorant when it comes
> to Excel): how do I get the values into Excel and which field in the
> .txt file is the expected reading?
>
> Also interestingly, when I look at the .txt files from a strip mode
> reading of the original .tif file and a patch mode reading of the same
> file stretched huge so each patch is about 1" on a side, the values
> are noticeably different. Photoshop reports the same RGB values in
> both, and they are printed on the same piece of paper using the same
> ABW settings, so do I deduce that MeasureTool can't handle the tiny
> squares in strip mode?
>
> Warmly appreciative of your help,
>
> - susan
>
> --- In QuadtoneRIP@yahoogroups.com, "Michael King" <drmrking@...> wrote:
>>
>> Actually on reflection I don't think you need to sort them.
>> I do that because I like to view a graph of the results before I give
>> it to QTR-Create-ICC.
>>
>> I presume your out of order values are in the dark blacks?
>> If so then your problem is simply that you are putting down too much
> ink.
>>
>> Mike
>>
>> 2008/10/10 Michael King <drmrking@...>:
>> > So measure tool reports the readings in the "random" order of the
>> > print out and you need to sort the results before you give them to
>> > QTR-Create-ICC. I do this in Excel. Don't sort by the actual Lab
>> > reading, sort by the expected value. That way if you really do have
>> > some out of order readings, QTR-Create-ICC will warn you.
>> >
>> > Mike
>> >
>> > 2008/10/10 slcphoto73 <slchapin@...>:
>> >> I have just printed Step-51-random.tif, run MeasureTool and measured
>> >> the three strips as strip-without-gaps. When I put the saved .txt
> file
>> >> into QTR-Create-ICC it tells me the Lab values are not in order
> and it
>> >> can't make the profile. And yes, I observe some Lab values out of
>> >> order in the "out" text file.
>> >>
>> >> I have repeated the measurement multiple times. I tried measuring as
>> >> patches but I couldn't properly center the spectrophotometer on the
>> >> patches, so it had the same problem only worse.
>> >>
>> >> What might be wrong and how do I correct it?
>> >>
>> >> I am running QTR v. 2.6.1.0, with CreateICC dated 9/18/2007.
>> >>
>> >> Thank you,
>> >>
>> >> - susan
>> >>
>> >>
>> >
>>
>
>