3D Inks- Questin for Paul
2006-07-14 by Steven Karafyllakis
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2006-07-14 by Steven Karafyllakis
Hi Paul; I'm looking for a way to match the border area of a print to the mat color that isn't too much of a pain. Is it possible to apply different profiles to separate layers of an image with 3D? That would enable me to print a warm very light grey border with a neutral image. Regards, Steven Karafyllakis
2006-07-14 by Paul Roark
Hi Steve, >I'm looking for a way to match the border area of a print to the mat >color that isn't too much of a pain. Of course, the method I recommend is to use non-brightened (no OBA) paper. Usually a brightened paper is too bluish relative to the un-brightened mat boards. One of the most effective ways I've seen to overcome this with inks is the use of yellow ink in a color inkset. With B&W inksets, the chromas are so low when just a 2% - 5% or so density is used that graying down the border may be about all that can be done. I'm not sure how much difference it makes whether the ink used is pure carbon or neutral. However, since carbon is somewhat yellow, that would at least in theory be the best ink to use if it is easily accomplished. > Is it possible to apply different >profiles to separate layers of an image with 3D? I don't think one can print through the PS Print Profile and have different ICCs applied to different parts of the image. The 3D inkset is controlled by curves inside the ICCs. I post these curves also. With the curves you can apply a different set to different parts of the image. See my simple split-tone example at http://home1.gte.net/res09aij/Split_tone.pdf However, the curves used in the example above and the curves that are inside the ICCs lack the more accurate linearization of the ICC workflow. So, to get a perfect monitor match some individual tweaking might be needed. You'd have to test the specific curves. I don't think I've even posted pure carbon curves yet. They are relatively simple -- just the C channel (red curve) with M and Y diving down at the end to turn on the black ink. (Getting the ramp smooth and correct, of course, is always easier said than done.) > That would enable me >to print a warm very light grey border with a neutral image. That would be a nice goal -- for both the border issue and split tone printing. Maybe a Photoshop expert could find a way to apply or "convert to" different ICCs within PS. It seems like one might be able to make duplicate RGB copies, convert each copy of the image to a different ICC, and then re-combine them as appropriate -- the neutral part for the image itself; the warm part for the border. I might try that later today. It might be a better way to do a split tone if it works. It would be nice to retain the linearization of the ICC in split-toning. Paul www.PaulRoark.com
2006-07-14 by CDTobie@aol.com
In a message dated 7/14/06 12:12:50 PM, paul.roark@... writes: > >I'm looking for a way to match the border area of a print to the mat > >color that isn't too much of a pain. > > Of course, the method I recommend is to use non-brightened (no OBA) paper. > Thats a start. For color work, you can do it with PrintFIX PRO, as described below (may be valid with 3d inks, though some adjustments will be necessary): Measure desired mat color with PFP, in the Tools>Measure screen. Note downthe Lab values of the matte (if doing several, start a log, read them in a known order, then open the log to get the Lab values) To get a match to the matte, open a document in Photoshop in your preferred color space (which I will assume is AdobeRGB). Now open the color picker, and type in the Lab values that you measured (yes, its a pain that the picker doesn't allow fractional Lab values to be entered). Now paste the resulting color in the border area of your image file. For a 'tint' (paler version) of your mat's color, use the same a and b, but move the L closer to 100 (to paper white, actually, can't go above that). If thats too saturated, divide the a and b to half the original (both closer to zero, whether positive or negative), as well as moving the L closer to 100. Subtle is good. If its hardly noticable, thats ideal. C. David Tobie Product Technology Manager ColorVision Business Unit Datacolor Inc. CDTobie@... www.colorvision.com [Non-text portions of this message have been removed]
2006-07-14 by Steven Karafyllakis
That sounds like a good way to get an exact match C.D. My thanks to both of you, I'll look into it further first chance I get. The real problem is in printing a K3 neutral image and a warmtoned border simultaneously, thrpugh QTR, Qimage, or CS2PS which is what I have for printing software. I suppose I could do it easily with Imageprint or another RIP, but Imageprint for the 7600 and the R1800 is WAY more money than I want to spend. Steve Karafyllakis --- In DigitalBlackandWhiteThePrint@yahoogroups.com, CDTobie@... wrote: > > > In a message dated 7/14/06 12:12:50 PM, paul.roark@... writes: > > > > >I'm looking for a way to match the border area of a print to the mat > > >color that isn't too much of a pain. > > > > Of course, the method I recommend is to use non-brightened (no OBA) paper. > > > Thats a start. For color work, you can do it with PrintFIX PRO, as described > below (may be valid with 3d inks, though some adjustments will be necessary): > > Measure desired mat color with PFP, in the Tools>Measure screen. Note downthe > Lab values of the matte (if doing several, start a log, read them in a known > order, then open the log to get the Lab values) > > To get a match to the matte, open a document in Photoshop in your preferred > color space (which I will assume is AdobeRGB). Now open the color picker, and > type in the Lab values that you measured (yes, its a pain that the picker > doesn't allow fractional Lab values to be entered). Now paste the resulting color > in the border area of your image file. > > For a 'tint' (paler version) of your mat's color, use the same a and b, but > move the L closer to 100 (to paper white, actually, can't go above that). If > thats too saturated, divide the a and b to half the original (both closer to > zero, whether positive or negative), as well as moving the L closer to 100.
> Subtle is good. If its hardly noticable, thats ideal. > > C. David Tobie > Product Technology Manager > ColorVision Business Unit > Datacolor Inc. > CDTobie@... > www.colorvision.com > > > [Non-text portions of this message have been removed] >
2006-07-14 by Paul Roark
For just toning down the border a little with the UT-3D inkset, I'm not sure worrying about that part of the image being pure carbon v. a neutral mix is worth worrying much about. All the inks in a dedicated B&W inkset like the 3D are so low in color that the paper color will dominate the very lightest shades. For example, on a rather highly brightened Kirkland glossy paper at L = 93, the pure carbon Lab (a,b) is (.18, -2.8). At L = 93 the neutral Kirkland ICC prints with a color (.2, -3.24). I'm not sure there is enough difference between these two shades to bother with more than just putting a very light gray border around the grayscale image and printing with the ICC. For reference, my Light Impressions Gallery White is an un-brightened paper with a lab of about (96, 1.7, 4.5). A B&W inkset can gray down the border areas a bit, but it cannot match the degree of warmth of this non-OBA mat, at least not on a bright paper like Kirkland and up that high on the Lightness value. Non-OBA paper is the best solution I've found for work that is going to be matted and displayed that way. Of course, what I'd like to do is get rid of the mat board entirely (and glass, for that matter). Since people seem to expect glass and some mat-like border, one way to do this is simply use an oversize piece of paper and print an appropriate border on it. It appears that matte inkjet paper, especially if sprayed with Lascaux, does not stick to glass when it is directly against it. With this solution you have a match of tones, and you save the money of a matte board. More for demonstration than anything else, I've made images with "faux mats" (simulated over-mat printed on oversize paper), and most viewers don't notice that there is really no over-mat there at all. For this approach I actually scanned a mat board to get the texture. Then I just use a grayscale file to print it with whatever workflow I'm using. I don't bother with split toning. It works surprisingly well. I put a sample on my photo home page at www.PaulRoark.com <http://www.paulroark.com/> Paul www.PaulRoark.com <http://www.paulroark.com/> _____
From: DigitalBlackandWhiteThePrint@yahoogroups.com [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of Steven Karafyllakis Sent: Friday, July 14, 2006 5:45 AM To: DigitalBlackandWhiteThePrint@yahoogroups.com Subject: [Digital BW] 3D Inks- Questin for Paul Hi Paul; I'm looking for a way to match the border area of a print to the mat color that isn't too much of a pain. Is it possible to apply different profiles to separate layers of an image with 3D? That would enable me to print a warm very light grey border with a neutral image. Regards, Steven Karafyllakis [Non-text portions of this message have been removed]
2006-07-15 by Peter De Smidt
> Of course, what I'd like to do is get rid of the mat board entirely (and > glass, for that matter). Since people seem to expect glass and some > mat-like border, one way to do this is simply use an oversize piece of > paper > and print an appropriate border on it. It appears that matte inkjet paper, > especially if sprayed with Lascaux, does not stick to glass when it is > directly against it. With this solution you have a match of tones, and you > save the money of a matte board. Here's a brief description of a program that does what Paul is suggesting: http://bermangraphics.com/press/quickmats.htm
2006-07-15 by Steven Karafyllakis
Paul; I agree that using 'the good stuff' is the best solution for high- end gallery environments; But what I'm looking for is an inexpensive solution that doesn't look cheap or compromise much on quality and archivalness for 'impulse buy' small prints in an art fair environment. I think for the time being I'll simply print down the border a tiny bit, and not worry about matching the color until I find the right paper for the job. > > > Non-OBA paper is the best solution I've found for work that is going to be > matted and displayed that way. > > > > Of course, what I'd like to do is get rid of the mat board entirely (and > glass, for that matter). Right now printing on canvas is probably the only publicly accepted way of getting rid of the mat and glass; I'm not very fond of that, (in fact I find it downright offensive) but most people who do it claim the public loves canvas. It makes the photo seem more like 'real art' or some BS like that. Yech. Steve Karafyllakis
2006-07-15 by Paul Roark
Steve, >I agree that using 'the good stuff' is the best solution >for high-end gallery environments; >But what I'm looking for is an inexpensive >solution that doesn't look cheap or compromise much on >quality and archivalness for 'impulse buy' small prints >in an art fair environment. I use Premier Art Hot Press 205 (no OBAs) behind a Light Impressions over-mat for this. If Moab has cured the flaking issues (as rumor suggests), their "natural" Entrada is also an option to consider. ... > > Of course, what I'd like to do is get rid of the > > mat board entirely (and glass, for that matter). >Right now printing on canvas is probably the only publicly > accepted way of getting rid of the mat and glass; >I'm not very fond of that ... I agree. Actually I like the matted 11 x 14 prints in ClearBags.com sold from the bin. By cutting out my framing time/costs, I think I'd rather sell more of them for less and make more on a per hour basis. Paul www.PaulRoark.com