Duotone wording... - DPChallenge Forums

Canon EF 24-105mm f/4.0L IS

02/15/2006 05:58:31 AM · #26

To be blunt, I find this all of this ridiculous bulls**t. Is this, first and foremost, a photography site or a computer site? Having gotten that off my chest (I feel much better I must say), a few questions...

I'm also a PSPX user and can convert an image to b/w by going to the 'image' drop down menu and clicking 'greyscale'. That is, completely automated conversion to b/w. So:

1. Is this a duotome image (for the purposes of this challenge)?
2. Is it legal for this challenge?
3. Assuming it is legal, once I've made the greyscale conversion can I then legally adjust contrast etc?

Cheers,

Q.

ShutterPug

Canon EOS-6D

02/15/2006 06:01:15 AM · #27

greyscale consist of one color tone - grey.

a duotone should consist of two colors.

Canon EF-S 10-22mm f/3.5-4.5 USM

02/15/2006 06:05:08 AM · #28

Thanks. So I a little confused about the difference between a b/w image (shades of grey, maybe with some true blacks and whites thrown in) and a greyscale image. Help??

mycelium

Canon EOS-350D Rebel XT

02/15/2006 06:30:02 AM · #29

Originally posted by suemack:

did this in psp....hues/sat, brightness/contrast. That would be legal wouldn't it?

Originally posted by gloda:

Yes, but it's a monochrome.

I'm quoting gloda, but the questions are addressed to anyone who wants to answer-

what's the difference between monochrome and duotone? is it just the inclusion of black?

does that mean that a monochrome and a tritone are the same thing?

why does the Colorize function in PSP not effectively create a duotone?

--

p.s. Qiki: 'B/W' and 'greyscale' are two words for the same thing.

Message edited by author 2006-02-15 06:32:37.

muckpond

Nikon D200

Sigma 15mm f/2.8 EX Diagonal Fisheye for Nikon

02/15/2006 06:34:14 AM · #30

a monochrome uses shades of one color (i.e. gray). a duotone uses shades of two colors (i.e. gray and blue). that's a simplified explanation.

i am not familiar with PSP, but the grayscale conversion feature would absolutely be allowed. i saw some use of adjustment layers in the other thread gloda linked to as well and they appear to have a normal blending mode but with an adjusted opacity. that is legal as well.

in photoshop you first convert the image to grayscale, and then change the mode to "duotone" and select your two color ranges.

i believe ursula is a PSP user. we might have to rely on her wisdom here, but i am of the mind that as long as you achieve a duotone in the entire image and don't violate any of the other basic editing rules you should be OK.

gloda

Canon EOS-5D Mark II

Canon EF 24-70mm f/2.8L USM

02/15/2006 06:53:18 AM · #31

Originally posted by muckpond:

a monochrome uses shades of one color (i.e. gray). a duotone uses shades of two colors (i.e. gray and blue).

Or red and blue, and that's where the trouble begins. I don't want to continue the discussion from the other thread here, but the way the rules are now, in PSP, you can only create monochromes (i.e. black-blue-white) and no duotones (i.e. black-blue-red-white).

muckpond

Nikon D200

Sigma 15mm f/2.8 EX Diagonal Fisheye for Nikon

02/15/2006 07:04:51 AM · #32

Originally posted by gloda:

in PSP, you can only create monochromes (i.e. black-blue-white) and no duotones (i.e. black-blue-red-white).

i'm not arguing. i truly don't understand. your first example sounds like a duotone (gray and blue) and your second example sounds like a tritone (gray, blue, and red).

i think i'm going to defer to someone more familiar with PSP in this case.

02/15/2006 07:11:05 AM · #33

hang on a sec...on the one hand shutterpug is telling me that greyscale is one tone only and mycelium is telling me greyscale and b/w are the same thing...ergo b/w is one tone and thus not what this challenge is asking for. but, the challenge info gives b/w as an example of what duotone is. what's going on?

glad2badad

Apple iPhone 16 Pro

Lensbaby Sweet 35 Optic

02/15/2006 07:24:14 AM · #34

Challenge description: "Your submission should only consist of two tones (black/white, sepia, etc)."

I can do B/W and Sepia in PSP X...no problem. ;^)

Canon EF 24-70mm f/2.8L USM

02/15/2006 07:33:46 AM · #35

hi glad'. the issue seems to have become somewhat murky. if by converting to b/w in pspx you mean using greyscale conversion as i suggested, there seems to be a train of thought going here that greyscale is not the same as b/w and thus not a duotone. i've just been playing with pspx and if you follow the instructions in the help menu to create a duotone (hue and saturation>colorize), you can't get b/w, only what i would call a monochrome (different shades of the one colour). my brain hurts.

actually i take some of that back...if you decrease the saturation in 'colorize' you can make it b/w, but i'd still be inclined to call that a monochrome rather than a duotone.

Message edited by author 2006-02-15 07:37:57.

glad2badad

Apple iPhone 16 Pro

Lensbaby Sweet 35 Optic

02/15/2006 07:42:34 AM · #36

Originally posted by glad2badad:

Challenge description: "Your submission should only consist of two tones (black/white, sepia, etc)."

I can do B/W and Sepia in PSP X...no problem. ;^)

I understand the conversation taking place, and I want to play some more with various hue & saturation settings - HOWEVER, based on the wording of the challenge description the following examples would meet the challenge criteria just fine. ;^)

- Black & White

- Sepia

gloda

Canon EOS-5D Mark II

02/15/2006 07:51:41 AM · #37

All kinds of monochrome are fine with PSP in basic editing, such as B/W or greyscale (which are the same), sepia, or any other colour. All those things you can legally achieve in PSP are monochromes, they take one colour (i.e. red) or no colour (i.e. grey) and use all it's lightness values, from pure black to pure white. Notice: Even pure black and pure white have a hue value when you use the dropper tool.
Hence, sepia is a monochrome. It uses a yellow-reddish colour and applies this colour value to the underlying lightness values of the photo's pixels.
Example:

(sepia)

A duotone does the same, but with TWO colours, which in turn are applied to the underlying pixels for what concerns their colour value. The advantage of duotones is that you can chose one colour for the darker tones, and one colour for the brighter tones.

Example:

(blue and violet)

(orange and yellow)

deapee

Kodak V803

Nikon AF Nikkor 50mm f/1.8D

02/15/2006 08:02:38 AM · #38

Oh goodness gracious...

Submit something either sepia, black and white, or made up of two tones of your choice!!!!!!

02/15/2006 08:03:10 AM · #39

so why do you think it is gloda that the only 2 examples of duotones given in the challenge details are b/w and sepia, when apparently both are actually monochromes?

glad2badad

Apple iPhone 16 Pro

Lensbaby Sweet 35 Optic

02/15/2006 08:03:17 AM · #40

Originally posted by glad2badad:

Challenge description: "Your submission should only consist of two tones (black/white, sepia, etc)."

I can do B/W and Sepia in PSP X...no problem. ;^)

Guess the Challenge Title needs to change to 'Monochrome' then. I prefer the challenge description myself. ;^)