Digital BW, The Print

Most discussion here revolves around getting your grayscale images to print
on your inkjet printer with your own personal tones -- warm/cool/sepia/split
or the latest idea matching Lenswork printing.

But once you do that, what about showing or reproducing those tones other than
in your prints.  I.e.  wouldn't it be nice to have your web site show the actual tone
of your prints.   Or how about making postcards that match your prints.

Naturally you can convert to RGB and experiment till you get something close.
But Color Management and ICC profiles can do all this for you automatically.
I've recently been printing with my own custom split-tone curves and wanted to
make some cards.   The card printer wants CMYK separations for printing.   In the
past to be on the safe side I just shipped them CYMK's that were just K ink so
they were just one ink printing.  The results were fine but not special.
Well now they provide full CMYK profiles of their printer and in fact have one that
has maximum GCR conversion -- i.e. minimum color inks.   This of course has
been the method we're all using on inkjets.  So I figured this was all worth a try.

Naturally I print with QTR and have my custom profiles.  I also create custom ICCs
for soft-proofing in Photoshop, so I can see the exact color of the prints of the
display.   Well its easy to convert the color to RGB or CMYK.

Simply - Convert to Profile from grayscale to the custom QTR gray ICC profile.
This will now look exactly like your soft-proof.  Note that it's still a grayscale
file but it has color.  Use the Eye-Dropper and see LAB values.

Now you can Convert to AdobeRGB or sRGB and maintain the colors on the web.

In my case I Converted to the printer's CMYK profile.  Color has been maintained
thoughout the whole process.   I sent the CMYK files in and the cards came back
a great match to the tone of the actual prints.

----------------------

The talk recently about matching Lenswork tones is also easy to do.  Measure a
few points in the magazine, or for that matter make up LAB values that you'd
like to match.   For instance take these LAB values that Paul posted.  Here they are:

9    0.9  0.7
27  2.1  3.3
40  2.4  4.2
53  2.4  3.3
75  2.0  1.6
93  1.2  -1.5
 
Just put them into a text file and drop it on QTR-Create-ICC.  You now have an ICC
profile that can be used like above.  The two Convert-to-Profiles will tone any
grayscale image in any desired way.

Roy

Roy,

I've also been using your create-icc script to generate icc profiles  
for toning grayscale images and it works very well.  I also made a  
simple Photoshop action for blending hues with any two icc profiles  
and put this on my filesharing site along with 4 sample icc profiles  
to use for hue blending (QTR warm, lenswork warm, QTR cool, and  
Oriental Seagull toned selenium).  These icc profiles are only for  
toning and are not to be used as print profiles.  The resulting toned  
RGB files can be printed using any RGB or CMYK workflow, but there  
will be some variance in print hues obtained, depending on paper and  
print profile quality.  As you observed, a high quality CMYK profile  
used with a RIP can provide a good print match.

Regards,
Carl

http://homepage.mac.com/scho/FileSharing5.html

On Aug 13, 2006, at 10:26 PM, Roy Harrington wrote:

>
> Most discussion here revolves around getting your grayscale images  
> to print
> on your inkjet printer with your own personal tones -- warm/cool/ 
> sepia/split
> or the latest idea matching Lenswork printing.
>
> But once you do that, what about showing or reproducing those tones  
> other than
> in your prints. I.e. wouldn't it be nice to have your web site show  
> the actual tone
> of your prints. Or how about making postcards that match your prints.
>
> Naturally you can convert to RGB and experiment till you get  
> something close.
> But Color Management and ICC profiles can do all this for you  
> automatically..
> I've recently been printing with my own custom split-tone curves  
> and wanted to
> make some cards. The card printer wants CMYK separations for  
> printing. In the
> past to be on the safe side I just shipped them CYMK's that were  
> just K ink so
> they were just one ink printing. The results were fine but not  
> special.
> Well now they provide full CMYK profiles of their printer and in  
> fact have one that
> has maximum GCR conversion -- i.e. minimum color inks. This of  
> course has
> been the method we're all using on inkjets. So I figured this was  
> all worth a try.
>
> Naturally I print with QTR and have my custom profiles. I also  
> create custom ICCs
> for soft-proofing in Photoshop, so I can see the exact color of the  
> prints of the
> display. Well its easy to convert the color to RGB or CMYK.
>
> Simply - Convert to Profile from grayscale to the custom QTR gray  
> ICC profile.
> This will now look exactly like your soft-proof. Note that it's  
> still a grayscale
> file but it has color. Use the Eye-Dropper and see LAB values.
>
> Now you can Convert to AdobeRGB or sRGB and maintain the colors on  
> the web.
>
> In my case I Converted to the printer's CMYK profile. Color has  
> been maintained
> thoughout the whole process. I sent the CMYK files in and the cards  
> came back
> a great match to the tone of the actual prints.
>
> ----------------------
>
> The talk recently about matching Lenswork tones is also easy to do.  
> Measure a
> few points in the magazine, or for that matter make up LAB values  
> that you'd
> like to match. For instance take these LAB values that Paul posted.  
> Here they are:
>
> 9 0.9 0.7
> 27 2.1 3.3
> 40 2.4 4.2
> 53 2.4 3.3
> 75 2.0 1.6
> 93 1.2 -1.5
>
> Just put them into a text file and drop it on QTR-Create-ICC. You  
> now have an ICC
> profile that can be used like above. The two Convert-to-Profiles  
> will tone any
> grayscale image in any desired way.
>
> Roy
>
> .
>
> 



[Non-text portions of this message have been removed]

Forgot to add a link to a sample hue blended image to my last post.   
This one was about 60% Lenswork warm and 40% Seagull Selenium.

http://www.pbase.com/scho/image/65156176


On Aug 14, 2006, at 2:12 PM, Carl Schofield wrote:

> Roy,
>
> I've also been using your create-icc script to generate icc  
> profiles for toning grayscale images and it works very well.  I  
> also made a simple Photoshop action for blending hues with any two  
> icc profiles and put this on my filesharing site along with 4  
> sample icc profiles to use for hue blending (QTR warm, lenswork  
> warm, QTR cool, and Oriental Seagull toned selenium).  These icc  
> profiles are only for toning and are not to be used as print  
> profiles.  The resulting toned RGB files can be printed using any  
> RGB or CMYK workflow, but there will be some variance in print hues  
> obtained, depending on paper and print profile quality.  As you  
> observed, a high quality CMYK profile used with a RIP can provide a  
> good print match.
>
> Regards,
> Carl
>
> http://homepage.mac.com/scho/FileSharing5.html
>
> On Aug 13, 2006, at 10:26 PM, Roy Harrington wrote:
>
>>
>> Most discussion here revolves around getting your grayscale images  
>> to print
>> on your inkjet printer with your own personal tones -- warm/cool/ 
>> sepia/split
>> or the latest idea matching Lenswork printing.
>>
>> But once you do that, what about showing or reproducing those  
>> tones other than
>> in your prints. I.e. wouldn't it be nice to have your web site  
>> show the actual tone
>> of your prints. Or how about making postcards that match your prints.
>>
>> Naturally you can convert to RGB and experiment till you get  
>> something close.
>> But Color Management and ICC profiles can do all this for you  
>> automatically..
>> I've recently been printing with my own custom split-tone curves  
>> and wanted to
>> make some cards. The card printer wants CMYK separations for  
>> printing. In the
>> past to be on the safe side I just shipped them CYMK's that were  
>> just K ink so
>> they were just one ink printing. The results were fine but not  
>> special.
>> Well now they provide full CMYK profiles of their printer and in  
>> fact have one that
>> has maximum GCR conversion -- i.e. minimum color inks. This of  
>> course has
>> been the method we're all using on inkjets. So I figured this was  
>> all worth a try.
>>
>> Naturally I print with QTR and have my custom profiles. I also  
>> create custom ICCs
>> for soft-proofing in Photoshop, so I can see the exact color of  
>> the prints of the
>> display. Well its easy to convert the color to RGB or CMYK.
>>
>> Simply - Convert to Profile from grayscale to the custom QTR gray  
>> ICC profile.
>> This will now look exactly like your soft-proof. Note that it's  
>> still a grayscale
>> file but it has color. Use the Eye-Dropper and see LAB values.
>>
>> Now you can Convert to AdobeRGB or sRGB and maintain the colors on  
>> the web.
>>
>> In my case I Converted to the printer's CMYK profile. Color has  
>> been maintained
>> thoughout the whole process. I sent the CMYK files in and the  
>> cards came back
>> a great match to the tone of the actual prints.
>>
>> ----------------------
>>
>> The talk recently about matching Lenswork tones is also easy to  
>> do. Measure a
>> few points in the magazine, or for that matter make up LAB values  
>> that you'd
>> like to match. For instance take these LAB values that Paul  
>> posted. Here they are:
>>
>> 9 0.9 0.7
>> 27 2.1 3.3
>> 40 2.4 4.2
>> 53 2.4 3.3
>> 75 2.0 1.6
>> 93 1.2 -1.5
>>
>> Just put them into a text file and drop it on QTR-Create-ICC. You  
>> now have an ICC
>> profile that can be used like above. The two Convert-to-Profiles  
>> will tone any
>> grayscale image in any desired way.
>>
>> Roy
>>
>> .
>>
>> 
>



[Non-text portions of this message have been removed]

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Carl Schofield
<list@...> wrote:
>
> Roy,
> 
> I've also been using your create-icc script to generate icc profiles  
> for toning grayscale images and it works very well.

It does  indeed, and myself as well. Even before Create ICC, we were
doing this with profiles made from the EyeOne Photo hack, or
ProfilerPro. All of the images om my website and the gallery section
of the Custom Digital site were made using an icc profile to show the
hue of the quad inks selected for the print, even a split-tone by Mel
Curtis. They were converted to sRGB for the web of course.
Also, a similar aproached was used to assign the hue of Cone's
selenium set to an image and then print with UCK3s on SilverRag, and
it was lovely. Much more atractive than a straight ABW print. You
could work forever trying to duplicate the look of an inkset with
curves etc., but a good profile of it will get you all the
complexities in one simple move.
There are all kinds of great ways to use profiles, and Create ICC has
become a great tool here.
Tyler
www.custom-digital.com

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Carl Schofield
<list@...> wrote:
>
> Forgot to add a link to a sample hue blended image to my last post.   
> This one was about 60% Lenswork warm and 40% Seagull Selenium.
> 
> http://www.pbase.com/scho/image/65156176
> 
> 
Hello Carl,

I downloaded your hueblender action and tried it in couple of
photographs so far, thank you for making it public, just clarify some
points for me please. 
The two layers created are always named COOL and WARM regardless of
the profiles chosen during conversion. If that's correct, am I also
right to assume that the bottom layer represents the 1st chosen
profile and the upper layer the second? 
So if for example I choose as 1st profile the LW and as 2nd the Se,
I'll get two layers with the names Cool and Warm and if I adjust the
opacity of the upper layer (named warm but actually being the Se) to
40% it is as if I choose LW 60% and Se 40%. Is this assumption correct?

Yes, when I first made the action I was only using warm and cool  
profiles, hence the default layer names.  You can readily tell which  
layer is which by simply dragging the upper layer opacity slider back  
and forth and observing the hue shift.  If you selected the LW  
profile first it will be on the bottom layer (COOL), so your  
assumption is correct about the proportions.

Carl

On Aug 15, 2006, at 11:36 AM, zisskar wrote:

> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Carl Schofield
> <list@...> wrote:
> >
> > Forgot to add a link to a sample hue blended image to my last post.
> > This one was about 60% Lenswork warm and 40% Seagull Selenium.
> >
> > http://www.pbase.com/scho/image/65156176
> >
> >
> Hello Carl,
>
> I downloaded your hueblender action and tried it in couple of
> photographs so far, thank you for making it public, just clarify some
> points for me please.
> The two layers created are always named COOL and WARM regardless of
> the profiles chosen during conversion. If that's correct, am I also
> right to assume that the bottom layer represents the 1st chosen
> profile and the upper layer the second?
> So if for example I choose as 1st profile the LW and as 2nd the Se,
> I'll get two layers with the names Cool and Warm and if I adjust the
> opacity of the upper layer (named warm but actually being the Se) to
> 40% it is as if I choose LW 60% and Se 40%. Is this assumption  
> correct?
>
> .
>
> 



[Non-text portions of this message have been removed]

I added a split toning action to the Hueblending action set that can  
be used as an alternative to blending.  Starting with a grayscale  
image, the SplitToning action will produce an RGB image with warm  
shadows/lower midtones and neutral highlights/upper midtones.  Sample  
image:
http://homepage.mac.com/scho/split.jpg

Carl

On Aug 14, 2006, at 2:24 PM, Carl Schofield wrote:

> Forgot to add a link to a sample hue blended image to my last  
> post.  This one was about 60% Lenswork warm and 40% Seagull Selenium.
>
> http://www.pbase.com/scho/image/65156176
>
>
> On Aug 14, 2006, at 2:12 PM, Carl Schofield wrote:
>
>> Roy,
>>
>> I've also been using your create-icc script to generate icc  
>> profiles for toning grayscale images and it works very well.  I  
>> also made a simple Photoshop action for blending hues with any two  
>> icc profiles and put this on my filesharing site along with 4  
>> sample icc profiles to use for hue blending (QTR warm, lenswork  
>> warm, QTR cool, and Oriental Seagull toned selenium).  These icc  
>> profiles are only for toning and are not to be used as print  
>> profiles.  The resulting toned RGB files can be printed using any  
>> RGB or CMYK workflow, but there will be some variance in print  
>> hues obtained, depending on paper and print profile quality.  As  
>> you observed, a high quality CMYK profile used with a RIP can  
>> provide a good print match.
>>
>> Regards,
>> Carl
>>
>> http://homepage.mac.com/scho/FileSharing5.html
>>
>> On Aug 13, 2006, at 10:26 PM, Roy Harrington wrote:
>>
>>>
>>> Most discussion here revolves around getting your grayscale  
>>> images to print
>>> on your inkjet printer with your own personal tones -- warm/cool/ 
>>> sepia/split
>>> or the latest idea matching Lenswork printing.
>>>
>>> But once you do that, what about showing or reproducing those  
>>> tones other than
>>> in your prints. I.e. wouldn't it be nice to have your web site  
>>> show the actual tone
>>> of your prints. Or how about making postcards that match your  
>>> prints.
>>>
>>> Naturally you can convert to RGB and experiment till you get  
>>> something close.
>>> But Color Management and ICC profiles can do all this for you  
>>> automatically..
>>> I've recently been printing with my own custom split-tone curves  
>>> and wanted to
>>> make some cards. The card printer wants CMYK separations for  
>>> printing. In the
>>> past to be on the safe side I just shipped them CYMK's that were  
>>> just K ink so
>>> they were just one ink printing. The results were fine but not  
>>> special.
>>> Well now they provide full CMYK profiles of their printer and in  
>>> fact have one that
>>> has maximum GCR conversion -- i.e. minimum color inks. This of  
>>> course has
>>> been the method we're all using on inkjets. So I figured this was  
>>> all worth a try.
>>>
>>> Naturally I print with QTR and have my custom profiles. I also  
>>> create custom ICCs
>>> for soft-proofing in Photoshop, so I can see the exact color of  
>>> the prints of the
>>> display. Well its easy to convert the color to RGB or CMYK.
>>>
>>> Simply - Convert to Profile from grayscale to the custom QTR gray  
>>> ICC profile.
>>> This will now look exactly like your soft-proof. Note that it's  
>>> still a grayscale
>>> file but it has color. Use the Eye-Dropper and see LAB values.
>>>
>>> Now you can Convert to AdobeRGB or sRGB and maintain the colors  
>>> on the web.
>>>
>>> In my case I Converted to the printer's CMYK profile. Color has  
>>> been maintained
>>> thoughout the whole process. I sent the CMYK files in and the  
>>> cards came back
>>> a great match to the tone of the actual prints.
>>>
>>> ----------------------
>>>
>>> The talk recently about matching Lenswork tones is also easy to  
>>> do. Measure a
>>> few points in the magazine, or for that matter make up LAB values  
>>> that you'd
>>> like to match. For instance take these LAB values that Paul  
>>> posted. Here they are:
>>>
>>> 9 0.9 0.7
>>> 27 2.1 3.3
>>> 40 2.4 4.2
>>> 53 2.4 3.3
>>> 75 2.0 1.6
>>> 93 1.2 -1.5
>>>
>>> Just put them into a text file and drop it on QTR-Create-ICC. You  
>>> now have an ICC
>>> profile that can be used like above. The two Convert-to-Profiles  
>>> will tone any
>>> grayscale image in any desired way.
>>>
>>> Roy
>>>
>>> .
>>>
>>> 
>>
>



[Non-text portions of this message have been removed]

Hi,

Just a message to say thank you !

I was trying to make such a script (split toning action) but without
success (I didn't think to use icc profiles). I'll have a Piezography
SplitTone system in the next weeks, but I also wanted to make it, or
similar, with photoshop, for me or for friends, in RGB...

If a french user wants to use it, like me, he just has to modify it :
"arriere plan" instead of "background", it takes 20 seconds to do it.
Ask me if you want it.

Thanks again,
Florent

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Carl Schofield
<list@...> wrote:

>
> I added a split toning action to the Hueblending action set that can  
> be used as an alternative to blending.  Starting with a grayscale  
> image, the SplitToning action will produce an RGB image with warm  
> shadows/lower midtones and neutral highlights/upper midtones.  Sample  
> image:
> http://homepage.mac.com/scho/split.jpg
> 
> Carl

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Tyler Boley"
<tyler@...> wrote:
>
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Carl Schofield
> <list@> wrote:
> >
> > Roy,
> > 
> > I've also been using your create-icc script to generate icc profiles  
> > for toning grayscale images and it works very well.
> 
> It does  indeed, and myself as well. Even before Create ICC, we were
> doing this with profiles made from the EyeOne Photo hack, or
> ProfilerPro. All of the images om my website and the gallery section
> of the Custom Digital site were made using an icc profile to show the
> hue of the quad inks selected for the print, even a split-tone by Mel
> Curtis. They were converted to sRGB for the web of course.
> Also, a similar aproached was used to assign the hue of Cone's
> selenium set to an image and then print with UCK3s on SilverRag, and
> it was lovely. Much more atractive than a straight ABW print. You
> could work forever trying to duplicate the look of an inkset with
> curves etc., but a good profile of it will get you all the
> complexities in one simple move.
> There are all kinds of great ways to use profiles, and Create ICC has
> become a great tool here.
> Tyler
> www.custom-digital.com
>

This is all very interesting, but can you please tell me what to do next. 
I've used Carl's HueBlend action profiles and got on screen the
desired hues. What is the recommended workflow for printing them? 
Do I use PS or Qimage and color manage using the media icc profiles or
use QTR and special curves?

The RGB files you produce with the hueblending action can only be  
printed in color using whatever workflow you normally use for color  
printing.  Metamerism might a problem with the warmest blends if you  
use CMYK inks in an inkjet printer with the Epson driver because you  
will have no control over the amount of yellow ink used.  Custom  
profiles and a good RIP would probably help a lot for inkjet  
printing.  I'm testing some blends with labs that use lightjet  
printers to see how they work out for making cards.

Carl

On Aug 16, 2006, at 1:29 PM, zisskar wrote:

> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Tyler Boley"
> <tyler@...> wrote:
> >
> > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Carl Schofield
> > <list@> wrote:
> > >
> > > Roy,
> > >
> > > I've also been using your create-icc script to generate icc  
> profiles
> > > for toning grayscale images and it works very well.
> >
> > It does indeed, and myself as well. Even before Create ICC, we were
> > doing this with profiles made from the EyeOne Photo hack, or
> > ProfilerPro. All of the images om my website and the gallery section
> > of the Custom Digital site were made using an icc profile to show  
> the
> > hue of the quad inks selected for the print, even a split-tone by  
> Mel
> > Curtis. They were converted to sRGB for the web of course.
> > Also, a similar aproached was used to assign the hue of Cone's
> > selenium set to an image and then print with UCK3s on SilverRag, and
> > it was lovely. Much more atractive than a straight ABW print. You
> > could work forever trying to duplicate the look of an inkset with
> > curves etc., but a good profile of it will get you all the
> > complexities in one simple move.
> > There are all kinds of great ways to use profiles, and Create ICC  
> has
> > become a great tool here.
> > Tyler
> > www.custom-digital.com
> >
>
> This is all very interesting, but can you please tell me what to do  
> next.
> I've used Carl's HueBlend action profiles and got on screen the
> desired hues. What is the recommended workflow for printing them?
> Do I use PS or Qimage and color manage using the media icc profiles or
> use QTR and special curves?
>
> .
>
> 



[Non-text portions of this message have been removed]

Thanks to Paul Roark's recent experiments with yellow ink replacement  
in the 2400 I found a way to eliminate metamerism and color  
crossovers when printing neutral and toned RGB images via the Epson  
driver.  I replaced the yellow ink in my 2400 with LLK (lightest  
carbon ink) by simply refilling a Y position MIS  spongeless cart  
with LLK ink.  I'm using the MIS K4 inks, but the same could be done  
with Epson OEM K3 inks.  I then made new color profiles for this  
modified inkset using the i1 spectrophotometer and iMatch software.   
The resulting profiles have a very low gamut (truncated in the orange/ 
yellow/green) but are ideal for printing warm toned and neutral  
images without the metamerism and color crossover problems that arise  
when the yellow ink is included in the full inkset.  I put two of  
these "low gamut" profiles in the Hueblending archive on my  
filesharing site.  If you are using a 2400 with MIS K4 inks give it a  
try for warm tone or neutral RGB images.  You will need an extra Y  
cart filled with LLK ink to print with these profiles.  Also below is  
a link to a print scan made on Hahnemuhle Fine Art Pearl using the  
low gamut K4 inkset and profile with a 2400.

First Lab report:
The lab prints I had made by MPIX.com with a Durst Theta on Kodak  
Endura Metallic paper were excellent (but high gloss) and both  
neutral grayscale and toned images sent to them as sRGB tagged files  
printed with very high fidelity.  I haven't tried their matte or e  
surface papers yet.

Carl

http://homepage.mac.com/scho/FileSharing5.html

http://homepage.mac.com/scho/tones.jpg

On Aug 16, 2006, at 1:57 PM, Carl Schofield wrote:

> The RGB files you produce with the hueblending action can only be  
> printed in color using whatever workflow you normally use for color  
> printing.  Metamerism might a problem with the warmest blends if  
> you use CMYK inks in an inkjet printer with the Epson driver  
> because you will have no control over the amount of yellow ink  
> used.  Custom profiles and a good RIP would probably help a lot for  
> inkjet printing.  I'm testing some blends with labs that use  
> lightjet printers to see how they work out for making cards.
>
> Carl
>
> On Aug 16, 2006, at 1:29 PM, zisskar wrote:
>
>> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Tyler Boley"
>> <tyler@...> wrote:
>> >
>> > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Carl Schofield
>> > <list@> wrote:
>> > >
>> > > Roy,
>> > >
>> > > I've also been using your create-icc script to generate icc  
>> profiles
>> > > for toning grayscale images and it works very well.
>> >
>> > It does indeed, and myself as well. Even before Create ICC, we were
>> > doing this with profiles made from the EyeOne Photo hack, or
>> > ProfilerPro. All of the images om my website and the gallery  
>> section
>> > of the Custom Digital site were made using an icc profile to  
>> show the
>> > hue of the quad inks selected for the print, even a split-tone  
>> by Mel
>> > Curtis. They were converted to sRGB for the web of course.
>> > Also, a similar aproached was used to assign the hue of Cone's
>> > selenium set to an image and then print with UCK3s on SilverRag,  
>> and
>> > it was lovely. Much more atractive than a straight ABW print. You
>> > could work forever trying to duplicate the look of an inkset with
>> > curves etc., but a good profile of it will get you all the
>> > complexities in one simple move.
>> > There are all kinds of great ways to use profiles, and Create  
>> ICC has
>> > become a great tool here.
>> > Tyler
>> > www.custom-digital.com
>> >
>>
>> This is all very interesting, but can you please tell me what to  
>> do next.
>> I've used Carl's HueBlend action profiles and got on screen the
>> desired hues. What is the recommended workflow for printing them?
>> Do I use PS or Qimage and color manage using the media icc  
>> profiles or
>> use QTR and special curves?
>>
>> .
>>
>> 
>



[Non-text portions of this message have been removed]

Thanks to Paul Roark's recent experiments with yellow ink replacement  
in the 2400 I found a way to eliminate metamerism and color  
crossovers when printing neutral and toned RGB images via the Epson  
driver.  I replaced the yellow ink in my 2400 with LLK (lightest  
carbon ink) by simply refilling a Y position MIS  spongeless cart  
with LLK ink.  I'm using the MIS K4 inks, but the same could be done  
with Epson OEM K3 inks.  I then made new color profiles for this  
modified inkset using the i1 spectrophotometer and iMatch software.   
The resulting profiles have a very low gamut (truncated in the orange/ 
yellow/green) but are ideal for printing warm toned and neutral  
images without the metamerism and color crossover problems that arise  
when the yellow ink is included in the full inkset.  I put two of  
these "low gamut" profiles in the Hueblending archive on my  
filesharing site.  If you are using a 2400 with MIS K4 inks give it a  
try for warm tone or neutral RGB images.  You will need an extra Y  
cart filled with LLK ink to print with these profiles.  Also below is  
a link to a print scan made on Hahnemuhle Fine Art Pearl using the  
low gamut K4 inkset and profile with a 2400.

First Lab report:
The lab prints I had made by MPIX.com with a Durst Theta on Kodak  
Endura Metallic paper were excellent (but high gloss) and both  
neutral grayscale and toned images sent to them as sRGB tagged files  
printed with very high fidelity.  I haven't tried their matte or e  
surface papers yet.

Carl

http://homepage.mac.com/scho/FileSharing5.html

http://homepage.mac.com/scho/tones.jpg

On Aug 16, 2006, at 1:57 PM, Carl Schofield wrote:

> The RGB files you produce with the hueblending action can only be  
> printed in color using whatever workflow you normally use for color  
> printing.  Metamerism might a problem with the warmest blends if  
> you use CMYK inks in an inkjet printer with the Epson driver  
> because you will have no control over the amount of yellow ink  
> used.  Custom profiles and a good RIP would probably help a lot for  
> inkjet printing.  I'm testing some blends with labs that use  
> lightjet printers to see how they work out for making cards.
>
> Carl
>
> On Aug 16, 2006, at 1:29 PM, zisskar wrote:
>
>> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Tyler Boley"
>> <tyler@...> wrote:
>> >
>> > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Carl Schofield
>> > <list@> wrote:
>> > >
>> > > Roy,
>> > >
>> > > I've also been using your create-icc script to generate icc  
>> profiles
>> > > for toning grayscale images and it works very well.
>> >
>> > It does indeed, and myself as well. Even before Create ICC, we were
>> > doing this with profiles made from the EyeOne Photo hack, or
>> > ProfilerPro. All of the images om my website and the gallery  
>> section
>> > of the Custom Digital site were made using an icc profile to  
>> show the
>> > hue of the quad inks selected for the print, even a split-tone  
>> by Mel
>> > Curtis. They were converted to sRGB for the web of course.
>> > Also, a similar aproached was used to assign the hue of Cone's
>> > selenium set to an image and then print with UCK3s on SilverRag,  
>> and
>> > it was lovely. Much more atractive than a straight ABW print. You
>> > could work forever trying to duplicate the look of an inkset with
>> > curves etc., but a good profile of it will get you all the
>> > complexities in one simple move.
>> > There are all kinds of great ways to use profiles, and Create  
>> ICC has
>> > become a great tool here.
>> > Tyler
>> > www.custom-digital.com
>> >
>>
>> This is all very interesting, but can you please tell me what to  
>> do next.
>> I've used Carl's HueBlend action profiles and got on screen the
>> desired hues. What is the recommended workflow for printing them?
>> Do I use PS or Qimage and color manage using the media icc  
>> profiles or
>> use QTR and special curves?
>>
>> .
>>
>> 
>



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