Datacolor User to User Support Group.

I uploaded a small program to compare two sets of PrintFix PRO patch 
readings.

It highlights the patches that are different between two sets of 
readings, so that you can re-read those patches. It seems from reading 
on the internet that Delta-E of less than 2 is good, but more than 6 is 
probably bad. Hopefully it's easy to see how to use the program.

It needs Windows 2000 or XP and .Net 2.0

I'm using PrintFix PRO version 1.1.1, the data file format may be 
different on other versions so it might not work.
 
I only spent a few evenings writing this in C# so it's not perfect, but 
I've found it useful to get rid of bad readings before using average, 
or to check if the ink needs longer to dry.

Hi Mike,

Appreciate your efforts.  Where might I download this.  I was hoping 
ColorVision might include something like this in their software.
Thanks,
Paul

--- In colorvision_group@yahoogroups.com, "Mike Johnson" 
<mikejohnson@...> wrote:
>
> I uploaded a small program to compare two sets of PrintFix PRO 
patch 
> readings.
> 
> It highlights the patches that are different between two sets of 
> readings, so that you can re-read those patches. It seems from 
reading 
> on the internet that Delta-E of less than 2 is good, but more than 
6 is 
> probably bad. Hopefully it's easy to see how to use the program.
> 
> It needs Windows 2000 or XP and .Net 2.0
> 
> I'm using PrintFix PRO version 1.1.1, the data file format may be 
> different on other versions so it might not work.
>  
> I only spent a few evenings writing this in C# so it's not perfect, 
but 
> I've found it useful to get rid of bad readings before using 
average, 
> or to check if the ink needs longer to dry.
>

--- In colorvision_group@yahoogroups.com, "bwinkjet" <bwinkjet@...> wrote:
>
> Hi Mike,
> 
> Appreciate your efforts.  Where might I download this.  I was hoping 
> ColorVision might include something like this in their software.
> Thanks,
> Paul

It's in the Files section of this group:

http://tech.groups.yahoo.com/group/colorvision_group/files/

I haven't tried it as I'm on a Mac.

Mike,

What a killer ap.  Works very well.  Appreciate being able to browse to 
the files to compare, and bingo, the work is done.
Thanks for sharing this.

Paul

--- In colorvision_group@yahoogroups.com, "Mike Johnson" 
<mikejohnson@...> wrote:

>
> Hi
> 
> I put it in the files section of this group.
> 
> Mike
>

Thanks Mike! Have tried it briefly and works like a charm - nice and 
simple & no hassle  :=) I will use this tool often! 

As has been mentioned here earlier GretagMacbeth has a little piece 
of freeware that can do the same comparison, and its also in Mac 
version : 

http://www.gretagmacbeth.com/index/products/products_color-mgmt-
spec/products_professional-cm/products_pm5packaging/products_pm5-
packaging_sw.htm

One of our brothers on this list has a short essay on the matter: 

http://www.rj-photo.de/printfix-pro/index.html

Kind Regards

Niels



 



--- In colorvision_group@yahoogroups.com, "Mike Johnson" 
<mikejohnson@...> wrote:
>
> I uploaded a small program to compare two sets of PrintFix PRO 
patch 
> readings.
> 
> It highlights the patches that are different between two sets of 
> readings, so that you can re-read those patches. It seems from 
reading 
> on the internet that Delta-E of less than 2 is good, but more than 
6 is 
> probably bad. Hopefully it's easy to see how to use the program.
> 
> It needs Windows 2000 or XP and .Net 2.0
> 
> I'm using PrintFix PRO version 1.1.1, the data file format may be 
> different on other versions so it might not work.
>  
> I only spent a few evenings writing this in C# so it's not perfect, 
but 
> I've found it useful to get rid of bad readings before using 
average, 
> or to check if the ink needs longer to dry.
>

Hi David,

Yes, I do read each patch set twice.  Could buy more expensive 
equipment with readers and averaging included, but by reading 2x and 
comparing I am pretty certain I can get a good profile.  (I have yet 
to find a significant difference however) (Also still have to add 6-
12 Blue on the sliders for most papers to get the yellow tint under 
control)

On a different topic.  Black point compensation:  I have researched 
this on the web and still get conflicting answers.  Some say BPC 
forces profile to deepest black and then maps everything above it.  
You alluded to the fact you set the black point with the profile you 
create.  Should you use BPC with relative colorimetric or perceptual 
rendering?  The goal being best dmax and good shadow separation.

Thanks,

Paul

--- In colorvision_group@yahoogroups.com, CDTobie@... wrote:
>
> 
> In a message dated 10/7/06 10:52:21 AM, bwinkjet@... writes:
> 
> 
> > 
> > Appreciate your efforts.  Where might I download this.  I was 
hoping
> > ColorVision might include something like this in their software.
> > 
> 
> We certainly would consider it; but it requires reading everything 
twice. 
> Generally, reading it carefully once is a quicker, more effective 
solution. How 
> is it that some people make so many reading mistakes? I have to be 
carrying on 
> a pretty distracting conversation at the same time I'm measuring to 
get any 

> errors at all...
> 
> C. David Tobie
> Product Technology Manager
> ColorVision Business Division
> DataColor Inc.
> CDTobie@...
> www.colorvision.com
>

I am still a relative newbie to this software, but have profiled about 
10 papers with 3 inks (canon, epson, mis) and the one thing i found 
early on was that printing the target a day ahead and letting it dry 
overnight was an excellent practice.  

Since i started doing that i have never had a bad profile and am very 
pleased with this product!