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color wheel



 
 
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  #21  
Old December 14th 12, 07:09 AM posted to sci.engr.color,sci.image.processing,rec.photo.darkroom,rec.photo.digital
Dale[_2_]
external usenet poster
 
Posts: 137
Default color wheel

On 12/13/2012 12:06 PM, Martin Leese wrote:
Dale wrote:

On 12/12/2012 01:21 PM, Martin Leese wrote:

...
I have a friend who is a
photographer. He was taught, and always
refers to, Blue, Red, Yellow filters on his
colour enlarger but, when I looked, these
were simply unusual names for Cyan, Magenta,
Yellow.


he uses a standard artist's color wheel, yu can find on the net


No he doesn't. As I stated, he uses a
standard CMY colour head on his enlarger,
but applies non-standard labels to the
colours.

Stop trolling.


are you threatening me? I am Cornholio, I need TP for my bunghole

http://en.wikipedia.org/wiki/Cornholio#Cornholio

--
Dale
  #22  
Old December 14th 12, 07:10 AM posted to sci.engr.color,sci.image.processing,rec.photo.darkroom,rec.photo.digital
Dale[_2_]
external usenet poster
 
Posts: 137
Default color wheel

On 12/13/2012 12:09 PM, Martin Leese wrote:
Dale wrote:
On 12/12/2012 01:21 PM, Martin Leese wrote:
Dale wrote:
My Uncle is an artist

I have ten years work experience as an imaging system engineer

I was always under the impression that CMY were the color complements
or opposites of RGB

he and apparently many others use a color wheel where the are other
complements or opposites to RGB

What are these "other complements or
opposites to RGB"? I have a friend who is a
photographer. He was taught, and always
refers to, Blue, Red, Yellow filters on his
colour enlarger but, when I looked, these
were simply unusual names for Cyan, Magenta,
Yellow.

does anyone know why this situation is? are there two rights or is
someone wrong?

What you describe is really two *wrongs*, as
human perception uses something close to Lab.


http://en.wikipedia.org/wiki/Color_wheel


What this Wikipedia article shows is a
number of different colour wheels. These
are mostly close to Lab (human perception)
where colour opposites are Green/Red and
Blue/Yellow.

Stop trolling.




are you threatening me? I am Cornholio, I need TP for my bunghole

http://en.wikipedia.org/wiki/Cornholio#Cornholio



--
Dale
  #23  
Old December 14th 12, 08:50 AM posted to sci.engr.color,sci.image.processing,rec.photo.darkroom,rec.photo.digital,alt.usenet.kooks
Dale[_2_]
external usenet poster
 
Posts: 137
Default color wheel

On 12/13/2012 12:06 PM, Martin Leese wrote:

Stop trolling.


feel free to go to alt.usenet.kooks and nominate me for another kook award

--
Dale
  #24  
Old December 14th 12, 08:51 AM posted to sci.engr.color,sci.image.processing,rec.photo.darkroom,rec.photo.digital,alt.usenet.kooks
Dale[_2_]
external usenet poster
 
Posts: 137
Default color wheel

On 12/13/2012 12:09 PM, Martin Leese wrote:
Stop trolling.


feel free to go to alt.usenet.kooks and nominate me for another kook award

--
Dale
  #25  
Old December 17th 12, 10:40 AM posted to sci.engr.color,sci.image.processing,rec.photo.darkroom,rec.photo.digital
bugbear
external usenet poster
 
Posts: 1,258
Default color wheel

I know the OP is a troll, but I thought
other denizens of this forum might like
this series of articles I found when reasearching.

It's a sort of deep-history of colour wheels
and colour theory itself.

http://imprint.printmag.com/color/th...-wheel-part-1/
http://imprint.printmag.com/color/wo...-wheel-part-2/
http://imprint.printmag.com/color/th...-wheel-part-3/

BugBear
 




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