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06/08/2009 01:16:47 AM · #1
...and here are the previous challenges in this series:
Duotones I
Duotones II
Duotones III
06/08/2009 01:27:16 AM · #2
I'm pretty excited about this one. :)
06/08/2009 01:37:27 AM · #3
How does this happen? I just did a duotone, and now am on a duotone fast.
06/09/2009 04:51:13 AM · #4
Looking at the previous contests and what falls under duotone and also looking up duotone on the internet it seems to me to be similar to black and white or sepia. Could someone explain to me the difference if any and what exactly constitutes a duotone image.
06/09/2009 04:55:23 AM · #5
I think some of Hotpasta's stuff falls under the heading of duotone.

Edit to add: Another word for duotone would be monochrome. Man that's confusing!

2nd edit: This collection of hotpasta's in particular has a lot good examples:
//www.dpchallenge.com/portfolio.php?USER_ID=34938&collection_id=31554

Message edited by author 2009-06-09 06:43:50.
06/09/2009 06:18:28 AM · #6
I am confused about what exactly duotones are. Is it an image consisting only of 2 colors? or more? I googled "Duotone" images and I see images that consist of 2 colors and also images labeled as duotone that have 3 or more colors.
06/09/2009 06:39:06 AM · #7
Wikipedia has a definition.

//en.wikipedia.org/wiki/Duotone
06/09/2009 06:54:24 AM · #8
Split toning is another term. There are a number of different tutorials on the steps.
e.g.
//www.photoshopessentials.com/photo-effects/split-toning/
06/09/2009 07:05:57 AM · #9
Originally posted by Sangiro:

I am confused about what exactly duotones are. Is it an image consisting only of 2 colors? or more? I googled "Duotone" images and I see images that consist of 2 colors and also images labeled as duotone that have 3 or more colors.

3 colours would be a tri-tone.
06/09/2009 07:08:32 AM · #10
Originally posted by Citadel:

I think some of Hotpasta's stuff falls under the heading of duotone.

Edit to add: Another word for duotone would be monochrome. Man that's confusing!

2nd edit: This collection of hotpasta's in particular has a lot good examples:
//www.dpchallenge.com/portfolio.php?USER_ID=34938&collection_id=31554

I thought monochrome and duo-tones were disparate. In PAGB competitions duo-tones cannot be enetered in the monochrome section, rather they compete alongside colour photos.
06/09/2009 07:08:36 AM · #11
Ok, now I understand what duotones are, has anyone found a good way of doing it in Photoshop Elements? The tools that you use in full photoshop don't exist in Elements. What I've found are directions on how to simulate a duotone, but some of these directions says it's not a real duotone--and I know I'd getting pinged for that...

Help would be greatly appreciated! It sounds like a fun thing to experiment with :D

thanks!
06/09/2009 07:19:13 AM · #12
Originally posted by Covert_Oddity:

Wikipedia has a definition.

//en.wikipedia.org/wiki/Duotone


from above link - "Duotone is a halftone reproduction of an image using the superimposition of a contrasty black halftone over a one color halftone"

Will I appear stupid if I say WHAT?! Im confused already!

Ok, just spotted the other link to the tutorial and hopefully I can follow instructions with pictures ;)

Message edited by author 2009-06-09 07:19:21.
06/09/2009 08:12:16 AM · #13
Came across this whole discussion about DuoTones here on DPC:
//www.dpchallenge.com/forum.php?action=read&FORUM_THREAD_ID=352828
06/09/2009 08:49:38 AM · #14


According to the challenge description, Duotone is black & white or sepia, clearly counting white as one of the tones. So, this would be considered a tri-tone & would be an easy DNMC low-vote guarantee just for that.

In CS3, you need to convert to greyscale before the Duotone option is activated. Does that mean that Duotone is "just BW with an added tone?"

Message edited by author 2009-06-09 08:55:16.
06/09/2009 08:54:38 AM · #15
Never mind.



Message edited by author 2009-06-09 08:55:58.
06/09/2009 08:56:12 AM · #16
I've somehow evolved to take a sick, twisted interest in these discussions. How can it be that no 2 people can agree on what a duotone is? Why are we using a print media term for Save-for-Web only images? I wonder if the highest votes will go to HDR BW landscapes?

Message edited by author 2009-06-09 08:59:39.
06/09/2009 09:41:42 AM · #17
Originally posted by pixelpig:

I've somehow evolved to take a sick, twisted interest in these discussions. How can it be that no 2 people can agree on what a duotone is? Why are we using a print media term for Save-for-Web only images? I wonder if the highest votes will go to HDR BW landscapes?


Well, the first question is basically answered by the second: a very specific offset printer's term has been co-opted by the Photoshop (and other) people and it is used for a wide range of effects.

The third question is irrelevant: HDR is not exclusive of "duotoning" at all. For the purposes of digital photography and web display, a "duotone" can be considered synonymous with any toned, B/W image. So an HDR image can certainly be "duotoned".

In any case, following the above formula, making a bluish or sepia or whatever toned version of a B/W conversion, will be a safe route to take in this challenge and I expect most of the entries will do just that. There's sort of an outlier debate going on about whether adding a specific color, in color, constitutes a "duotone": that is to say, if I shot a rose on a bush and desaturated everything but red, leaving a B/W image with a bright red rose in it, would that be a "duotone"?

My answer to that, and it's just MY perspective, is that this is not what the challenge is intended to encourage. But in the end, the voters, of course, will speak.

R.
06/09/2009 10:30:55 AM · #18
Originally posted by Bear_Music:

Originally posted by pixelpig:

I've somehow evolved to take a sick, twisted interest in these discussions. How can it be that no 2 people can agree on what a duotone is? Why are we using a print media term for Save-for-Web only images? I wonder if the highest votes will go to HDR BW landscapes?


Well, the first question is basically answered by the second: a very specific offset printer's term has been co-opted by the Photoshop (and other) people and it is used for a wide range of effects.

The third question is irrelevant: HDR is not exclusive of "duotoning" at all. For the purposes of digital photography and web display, a "duotone" can be considered synonymous with any toned, B/W image. So an HDR image can certainly be "duotoned".

In any case, following the above formula, making a bluish or sepia or whatever toned version of a B/W conversion, will be a safe route to take in this challenge and I expect most of the entries will do just that. There's sort of an outlier debate going on about whether adding a specific color, in color, constitutes a "duotone": that is to say, if I shot a rose on a bush and desaturated everything but red, leaving a B/W image with a bright red rose in it, would that be a "duotone"?

My answer to that, and it's just MY perspective, is that this is not what the challenge is intended to encourage. But in the end, the voters, of course, will speak.

R.


Yes, well digital photography got its start with the paying public by using a familiar (from film photography) vocabulary.

A literal interpretation of duotone is 'two tones' I guess, so I expect to see a lot of that. I like HDR BW, so I'm looking forward to those even if they are landscapes. I'm looking forward also to the few that will be none of the above, maybe from people who have experience with duotone in print media. [eta] And you know the Photographers speak first--then the voters.

Message edited by author 2009-06-09 10:34:13.
06/09/2009 01:46:49 PM · #19
Came across this interesting snippet in an older thread about duotones here on DPC

11/05/2007 02:22:59 PM
Originally posted by glad2badad:
Originally posted by annpatt:
In printing, a duotone is something that is printed with two ink colors, usually black and another color. The white in the picture in question is the "paper" color, and isn't an ink color.

The challenge description muddles the issue by listing black/white as a duotone, when it's really a monotone (black ink only).

:-P But does that apply to photography vs printing?

What you're saying is white doesn't count as a tone? Hmmm. Could be interesting. :-)

Duotone is a printing term. In fact, accurately previewing a duotone digitally is all but impossible. It's been a problem in the print business for years. Issues like spot color, dot angle, dot gain have always been challenges in the digital age.

And yes, white is assumed. Ever seen a white ink in a color printer? Screen printing on t-shirts other than white required a white plate and white ink in the off set printing process.

By definition, duotones are 2 ink colors other than white. In the off set printing world, color printing in magazines, news papers, catalogs, etc. are 4-color printing, All the colors you see are an optical illusion created by cyan, magenta, yellow, and black inks on white paper. The angle and density of the dots give the illusion of full color.

Ink Jet printing is called Stochastic printing, the colors are mixed and sprayed onto the paper in the printing process. This is why we get more photo quality from an ink jet printer than you see in magazines.

I think for the purposes of this challenge, they are going for something other than standard B&W and full color, like sepia toned, blue and white, red and white, etc.

Look in some magazines or do a google search. You'll see several examples.

Bear-Music gave a good example as well in that thread:
Member: Bear_Music
Panasonic DMC-FZ30 [Reply w/ Quote] [Report this Post] 11/05/2007 02:34:06 PM

It's true that "duotone", properly speaking, is a printing/graphic arts term. We don't HAVE true duotones in the Photoshop/screen display world.

That said, Photoshop DOES have "duotones" as an option for image processing, and what this produces is what we old-school photographers would call a "tinted" image. So basically the challenge is asking for tinted B/W images, IMO.

//www.dpchallenge.com/forum.php?action=read&FORUM_THREAD_ID=699657

Message edited by author 2009-06-09 14:04:39.
06/09/2009 01:57:14 PM · #20
Yes, once again the challenge description actually describes a monotone, and my guess that that once again we'll see a huge majority of monotones and only a few duotones.

My guess is also that if anyone dares to enter a strongly colored duotone like one of those, he'll strongly get voted down:
//www.flickr.com/photos/14911536@N07/3590554516/in/pool-two_colors_or_less
//www.flickr.com/photos/muzuto/3607207586/in/pool-two_colors_or_less
//www.flickr.com/photos/yvesmoreaux/3537923903/in/pool-two_colors_or_less
//www.flickr.com/photos/darwinbell/3587784611/in/pool-two_colors_or_less
//www.flickr.com/photos/onetakemovie/2201528433/in/pool-two_colors_or_less
//www.flickr.com/photos/61079485@N00/3576437305/in/pool-two_colors_or_less

06/09/2009 03:45:51 PM · #21
Originally posted by Sangiro:

Ink Jet printing is called Stochastic printing, the colors are mixed and sprayed onto the paper in the printing process. This is why we get more photo quality from an ink jet printer than you see in magazines.

This is not quite right -- the inks (still CYMK, and sometimes up to three others) are not actually mixed, but are arranged in a random patterns of little dots, which the eye/brain system blends mentally and interprets as the various colors.

The difference between traditional halftones and stochastic printing is not in the inks or their application, but only in the pattern in which they are applied -- a grid of regularly-spaced dots vs. a more random pattern. But if you look closely enough (i.e. with a 10x or so magnifier) at either a magazine photo or an ink-jet print you will still see tiny dots of the "pure" ink colors.

The "quality" difference between a magazine image and one from an ink-jet are largely caused by the need for one to be printed at a rate of 5000/hour vs. 5 minutes/image, and the larger dots required for accurate reproduction of the former. Stochastic screening has been available for offset printing for over 20 years, but most printers did not find it better enough to make it economically practical to change over.

For that matter, what you see on your monitor is a (regular) pattern of Red, Green, and Blue dots, spaced closely enough together that the eye creates the illusion of all the intermediate colors.

Message edited by author 2009-06-09 15:48:05.
06/09/2009 04:04:51 PM · #22
Originally posted by GeneralE:

Originally posted by Sangiro:

Ink Jet printing is called Stochastic printing, the colors are mixed and sprayed onto the paper in the printing process. This is why we get more photo quality from an ink jet printer than you see in magazines.

This is not quite right -- the inks (still CYMK, and sometimes up to three others) are not actually mixed, but are arranged in a random patterns of little dots, which the eye/brain system blends mentally and interprets as the various colors.

The difference between traditional halftones and stochastic printing is not in the inks or their application, but only in the pattern in which they are applied -- a grid of regularly-spaced dots vs. a more random pattern. But if you look closely enough (i.e. with a 10x or so magnifier) at either a magazine photo or an ink-jet print you will still see tiny dots of the "pure" ink colors.

The "quality" difference between a magazine image and one from an ink-jet are largely caused by the need for one to be printed at a rate of 5000/hour vs. 5 minutes/image, and the larger dots required for accurate reproduction of the former. Stochastic screening has been available for offset printing for over 20 years, but most printers did not find it better enough to make it economically practical to change over.

For that matter, what you see on your monitor is a (regular) pattern of Red, Green, and Blue dots, spaced closely enough together that the eye creates the illusion of all the intermediate colors.


That's not my quote General E :) This is the part that can be attributed to me "Came across this interesting snippet in an older thread about duotones here on DPC" The rest belongs to Annpatt and Glad2bebad
I myself know nada about duotones or printing at all. I am just trying to make sense out of it all.

Message edited by author 2009-06-09 16:06:41.
06/09/2009 04:56:45 PM · #23
Originally posted by Sangiro:

That's not my quote General E :) This is the part that can be attributed to me "Came across this interesting snippet in an older thread about duotones here on DPC" The rest belongs to Annpatt and Glad2bebad
I myself know nada about duotones or printing at all. I am just trying to make sense out of it all.

Sorry -- I'm usually more careful about attribution ... hope the explanation helped. :-)
06/09/2009 06:47:27 PM · #24
Originally posted by GeneralE:

Originally posted by Sangiro:

That's not my quote General E :) This is the part that can be attributed to me "Came across this interesting snippet in an older thread about duotones here on DPC" The rest belongs to Annpatt and Glad2bebad
I myself know nada about duotones or printing at all. I am just trying to make sense out of it all.

Sorry -- I'm usually more careful about attribution ... hope the explanation helped. :-)


No problem General. Actually what you say in this thread about B&W and Duotones has cleared up a lot for me.
//www.dpchallenge.com/forum.php?action=read&FORUM_THREAD_ID=350973&highlight=duotones
06/11/2009 06:38:09 PM · #25
I'm just wondering if this image would be considered a duotone? Are dutone and split tone the same thing?
Duotone?

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