| cool cleanplate generation tools in photoshop CS3 |
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| ID: |
10759 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Deke Kincaid |
| Date: |
2007-03-30 12:02:35 |
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| Subject: |
cool cleanplate generation tools in photoshop CS3 |
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| ID: |
10760 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Randy Little |
| Date: |
2007-03-30 14:17:38 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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| ID: |
10761 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Kory Juul |
| Date: |
2007-03-30 15:36:13 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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you lost me on the file open part. this shit is getting too hard.
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| ID: |
10762 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Lewis Saunders |
| Date: |
2007-03-30 20:37:31 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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Neat. So does anyone have a plugin which does a median across several
image inputs? Not possible in a macro, right?
L
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| ID: |
10763 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Ray Zschau |
| Date: |
2007-03-30 15:44:27 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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I sure could've used that last week. CS3 is looking crazy.
-r
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| ID: |
10764 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Phil Pham |
| Date: |
2007-03-30 14:27:44 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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I've been kinda doing this with a bunch of Mix nodes across inputs.
But I always get a little it of ghosting. I wonder how they are able
to do that.
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| ID: |
10765 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Eddie Offermann |
| Date: |
2007-03-30 14:31:29 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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Can't recall if I've seen a publicly-available macro for this on fxshare or
whatever, but it's doable without a plugin. The variable number of inputs
is the tricky part, but it can be worked around.
One fairly straightforward approach might be to (auto)align the plates,
difference matte each plate from the others keeping only what's common with
most (maybe add your resulting difference mattes for each plate together and
then threshold the resulting matte to generate the alpha for that layer),
and layer them with the other plates. You'll want at least one plate that
you're arbitrarily declaring to be the 'background' to fill in for things
like leaf flutter (or the water in this example) that's not going to be the
same between any of the plates.
It's definitely something you'd want to build into a re-usable,
re-purposable piece of script rather than a make-it-everytime kind of
thing. On a case-by-case basis, it's probably easier just to paint yourself
a cleanplate.
The biggest limitation in Shake is going to be the lack of an autoalignment
tool that'll accept a half dozen or more inputs - and the lack of
auto-expanding inputs on macros a la the "Layer" node.
I'm interested in seeing a demo of the photoshop stack mode with more
divergent plates: how does it handle a series where the camera moved more
than in the example, for instance.
On 3/30/07, Lewis Saunders wrote:
>
> Deke Kincaid wrote:
> > http://www.jnack.com/adobe/photoshop/fountain/
> > http://av.adobe.com/russellbrown/CS3StackModeSM.mov
>
> Neat. So does anyone have a plugin which does a median across several
> image inputs? Not possible in a macro, right?
>
> L
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| ID: |
10766 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Kory Juul |
| Date: |
2007-03-30 16:52:57 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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it probably a difference matte between images to get the uncommon areas. and using that matte with a keymix to over the opposite image... adding more images til you get the clean plate.
---------- Original Message ----------------------------------
From: Phil Pham Reply-To:
Date: Fri, 30 Mar 2007 14:27:44 -0700
>I've been kinda doing this with a bunch of Mix nodes across inputs.
>But I always get a little it of ghosting. I wonder how they are able
>to do that.
>
>
>On Mar 30, 2007, at 12:37 PM, Lewis Saunders wrote:
>
>> Deke Kincaid wrote:
>>> http://www.jnack.com/adobe/photoshop/fountain/
>>> http://av.adobe.com/russellbrown/CS3StackModeSM.mov
>>
>> Neat. So does anyone have a plugin which does a median across several
>> image inputs? Not possible in a macro, right?
>>
>> L
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| ID: |
10767 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Alan Boucek |
| Date: |
2007-03-30 15:35:48 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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if this is the kind of thing you find yourself needing to do
regularly, then you need the Furnace plugins.
This particular example of the photoshop method works really well
with footage that works with the auto align function, but you should
see what you can accomplish if you've got optical flow tools.
The SmartPlate plugin should do pretty much the same thing as the
Photoshop example, but it will do a number of things that Photoshop
doesn't.
On Mar 30, 2007, at 2:31 PM, Eddie Offermann wrote:
> Can't recall if I've seen a publicly-available macro for this on
> fxshare or
> whatever, but it's doable without a plugin. The variable number of
> inputs
> is the tricky part, but it can be worked around.
> One fairly straightforward approach might be to (auto)align the
> plates,
> difference matte each plate from the others keeping only what's
> common with
> most (maybe add your resulting difference mattes for each plate
> together and
> then threshold the resulting matte to generate the alpha for that
> layer),
> and layer them with the other plates. You'll want at least one
> plate that
> you're arbitrarily declaring to be the 'background' to fill in for
> things
> like leaf flutter (or the water in this example) that's not going
> to be the
> same between any of the plates.
>
> It's definitely something you'd want to build into a re-usable,
> re-purposable piece of script rather than a make-it-everytime kind of
> thing. On a case-by-case basis, it's probably easier just to paint
> yourself
> a cleanplate.
>
> The biggest limitation in Shake is going to be the lack of an
> autoalignment
> tool that'll accept a half dozen or more inputs - and the lack of
> auto-expanding inputs on macros a la the "Layer" node.
>
> I'm interested in seeing a demo of the photoshop stack mode with more
> divergent plates: how does it handle a series where the camera
> moved more
> than in the example, for instance.
>
> On 3/30/07, Lewis Saunders wrote:
>>
>> Deke Kincaid wrote:
>>> http://www.jnack.com/adobe/photoshop/fountain/
>>> http://av.adobe.com/russellbrown/CS3StackModeSM.mov
>>
>> Neat. So does anyone have a plugin which does a median across
>> several
>> image inputs? Not possible in a macro, right?
>>
>> L
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| ID: |
10768 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Sam Cole |
| Date: |
2007-03-31 17:30:56 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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>
> you lost me on the file open part. this shit is getting too hard.
no, it's
because
MR adobe man
......talks.......
LIKE! a
retard
WOW
./sam
p.s.
So has anyone figured out how to do a temporal median in shake logic?
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| ID: |
10769 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Randy Little |
| Date: |
2007-03-31 08:46:58 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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Ok Mr. Adobe Man is one of the best designers alive. Russel Brown. He is a
bit crazy and has been making those demo's longer then most people have been
using computers. I used to work with crazy russel back in the mid 90's.
Well I was at Macromedia and he was at Adobe. http://www.russellbrown.com/
Russel got is style because most people doing demos back then would put you
to sleep. Russel being a very very very good designer decided when he was
asked to do these that he would be more Mr. Crazy Russel. (he is a little
wacky) But he is also the SR. Creative Director for Adobe.
R.
On 3/31/07, Sam Cole wrote:
>
> >
> > you lost me on the file open part. this shit is getting too hard.
> no, it's
>
> because
>
> MR adobe man
>
> ......talks.......
>
> LIKE! a
>
> retard
>
> WOW
>
> ./sam
>
>
> p.s.
>
> So has anyone figured out how to do a temporal median in shake logic?
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| |
| ID: |
10770 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Randy Little |
| Date: |
2007-03-31 09:11:00 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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I guess what also interesting to me with my photography back ground is that
this technique is SO OLD SCHOOL. haha. Photographers use this technique to
create clean images with no people of busy city scenes. You just take
multiple exposures on the same frame that add up to the proper base
exposure. You get a your exposure setting set your aperture then divide
the exposure time by say 15 to 20 then use that exposure time and take 15
separate shots each shot building to the final exposure. Not sure it would
work so well with a SLR unless you have mirror lock but its great with leaf
shutter cameras.
R
On 3/31/07, Randy Little wrote:
>
> Ok Mr. Adobe Man is one of the best designers alive. Russel Brown. He is
> a bit crazy and has been making those demo's longer then most people have
> been using computers. I used to work with crazy russel back in the mid
> 90's. Well I was at Macromedia and he was at Adobe.
> http://www.russellbrown.com/ Russel got is style because most people
> doing demos back then would put you to sleep. Russel being a very very very
> good designer decided when he was asked to do these that he would be more
> Mr. Crazy Russel. (he is a little wacky) But he is also the SR. Creative
> Director for Adobe.
>
> R.
>
>
>
>
> On 3/31/07, Sam Cole wrote:
> >
> > >
> > > you lost me on the file open part. this shit is getting too hard.
> > no, it's
> >
> > because
> >
> > MR adobe man
> >
> > ......talks.......
> >
> > LIKE! a
> >
> > retard
> >
> > WOW
> >
> > ./sam
> >
> >
> > p.s.
> >
> > So has anyone figured out how to do a temporal median in shake logic?
|
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| |
| ID: |
10771 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
chris |
| Date: |
2007-03-31 17:21:45 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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lol, i thought i'm the only one that feels that way..
frankly, i dont care if he's a good designer or not or if he's a bit
crazy (well, maybe if i'd known that before hand i wouldnt feel outright
insulted). point is i cant watch that stuff and the learning effect is
usually rather small... most tutorials i've seen seem to be made for
people who hardly know how send an email attachment, and cover stuff
that i could just as well find by looking up the manual.
one exception is Deke McClelland, his photoshop tutorials are very good
and advanced, and often you pick up very useful tricks in a side remark.
he also has a good pace and is mildly funny ;)
http://movielibrary.lynda.com/authors/author/?aid=98
i wish somebody would do something similair for shake..
++ chris
at 31.03.2007 Sam Cole wrote:
> no, it's
>
> because
>
> MR adobe man
>
> .......talks.......
>
> LIKE! a
>
> retard
>
> WOW
>
> ../sam
>
>
> p.s.
>
> So has anyone figured out how to do a temporal median in shake logic?
|
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| |
| ID: |
10772 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Randy Little |
| Date: |
2007-03-31 09:57:10 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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Yeah Russel is over the top. His style might be better in person where it
seems a little more dialed back because it is paced different. (but I have
not even talked to Russel since 1995) Marco's stuff is a nice balance of,
Did he really say that?" and here is how you get it done.
On 3/31/07, chris wrote:
>
>
> lol, i thought i'm the only one that feels that way..
>
> frankly, i dont care if he's a good designer or not or if he's a bit
> crazy (well, maybe if i'd known that before hand i wouldnt feel outright
> insulted). point is i cant watch that stuff and the learning effect is
> usually rather small... most tutorials i've seen seem to be made for
> people who hardly know how send an email attachment, and cover stuff
> that i could just as well find by looking up the manual.
>
> one exception is Deke McClelland, his photoshop tutorials are very good
> and advanced, and often you pick up very useful tricks in a side remark.
> he also has a good pace and is mildly funny ;)
> http://movielibrary.lynda.com/authors/author/?aid=98
>
> i wish somebody would do something similair for shake..
> ++ chris
>
>
>
> at 31.03.2007 Sam Cole wrote:
>
> > no, it's
> >
> > because
> >
> > MR adobe man
> >
> > .......talks.......
> >
> > LIKE! a
> >
> > retard
> >
> > WOW
> >
> > ../sam
> >
> >
> > p.s.
> >
> > So has anyone figured out how to do a temporal median in shake logic?
|
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| |
| ID: |
10773 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Stewart Pomeroy |
| Date: |
2007-04-01 05:36:31 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
|
Aren't those side snarky remarks in the manuals amusing?
S.
>> i wish somebody would do something similair for shake..
>> ++ chris
--
//stewart pomeroy
//cg artist
//
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| ID: |
10774 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Patrick Nagle |
| Date: |
2007-03-31 22:10:24 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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I agree with sam.
On 3/31/07, Stewart Pomeroy wrote:
>
> Aren't those side snarky remarks in the manuals amusing?
>
>
> S.
>
> >> i wish somebody would do something similair for shake..
> >> ++ chris
>
>
>
> --
> //stewart pomeroy
> //cg artist
> //
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| |
| ID: |
10775 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Christopher Noellert |
| Date: |
2007-04-02 09:47:39 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
|
This kind of averaging has exited in Flame for 10 years under the
name of compound - hardly revolutionary. That being said... I wonder
what the entropy button does...
Turn everything grey?
Chris
--
Chris Noellert
Senior Flame / Digital Post Technical Director / Prima donna
Nordiskfilm Post Production Stockholm
(Formerly Filmteknik/Frithiof Film to Video. AB)
Tulvaktsvagen 2
115 40 Stockholm
Tel: +46 8 450 450 00
Fax: +46 8 450 450 01
Dir: +46 8 450 450 17
Mob: +46 7 024 616 31
AIM: cmnoellert
Reel: http://se.nordiskfilm-postproduction.com/movieviewer.aspx?
movie=Video_250018.mov
Web: http://www.nordiskfilm-postproduction.com
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| ID: |
10776 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Sam Cole |
| Date: |
2007-04-02 21:35:43 |
|
| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
|
> This kind of averaging has exited in Flame for 10 years under the
> name of compound - hardly revolutionary.
A median is different from a mean.
./sam
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| ID: |
10777 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Tim Gray |
| Date: |
2007-04-02 09:02:20 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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On 3/31/07, Randy Little wrote:
> You get a your exposure setting set your aperture then divide
> the exposure time by say 15 to 20 then use that exposure time and take 15
> separate shots each shot building to the final exposure. Not sure it would
> work so well with a SLR unless you have mirror lock but its great with leaf
> shutter cameras.
Thanks for this. This sounds like a fun thing to try with my new old film camera!
|
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| |
| ID: |
10778 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Christopher Noellert |
| Date: |
2007-04-02 16:14:34 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
|
... it's a weighted average - but it's still a form of an average,
which is why the trick works. Mean was also one of the choices in
the menu by the by.
Regardless, the point is still valid. Still curious about the
entropy setting...
Best,
Chris
--
Chris Noellert
Senior Flame / Digital Post Technical Director / Prima donna
Nordiskfilm Post Production Stockholm
(Formerly Filmteknik/Frithiof Film to Video. AB)
Tulvaktsvagen 2
115 40 Stockholm
Tel: +46 8 450 450 00
Fax: +46 8 450 450 01
Dir: +46 8 450 450 17
Mob: +46 7 024 616 31
AIM: cmnoellert
Reel: http://se.nordiskfilm-postproduction.com/movieviewer.aspx?
movie=Video_250018.mov
Web: http://www.nordiskfilm-postproduction.com
On Apr 2, 2007, at 1:35 PM, Sam Cole wrote:
>> This kind of averaging has exited in Flame for 10 years under the
>> name of compound - hardly revolutionary.
>
> A median is different from a mean.
>
> ./sam
|
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| |
| ID: |
10779 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
howard Jones |
| Date: |
2007-04-02 15:59:08 |
|
| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
|
Just to stick my head up my arse and be totally anal,
a median isn't a form of an average, it IS by definition an average -
taking the central point of a distribution rather than the average of
the distribution or
(and here comes the point) as the mode does - the most common.
In the example given in CS3 surely this is a mode average rather than
a mean or median (ie the most common colour is
used not the central or average)?
and yes this would be very handy.
I would check this theory against the movie but I've lost the link.
Right head out of my arse and time to enjoy the sunshine.
Howard
On 2 Apr 2007, at 15:14, Christopher Noellert wrote:
> ... it's a weighted average - but it's still a form of an average,
> which is why the trick works. Mean was also one of the choices in
> the menu by the by.
>
> Regardless, the point is still valid. Still curious about the
> entropy setting...
>
> Best,
> Chris
>
> --
> Chris Noellert
> Senior Flame / Digital Post Technical Director / Prima donna
>
> Nordiskfilm Post Production Stockholm
> (Formerly Filmteknik/Frithiof Film to Video. AB)
> Tulvaktsvagen 2
> 115 40 Stockholm
>
> Tel: +46 8 450 450 00
> Fax: +46 8 450 450 01
> Dir: +46 8 450 450 17
> Mob: +46 7 024 616 31
> AIM: cmnoellert
>
> Reel: http://se.nordiskfilm-postproduction.com/movieviewer.aspx?
> movie=Video_250018.mov
> Web: http://www.nordiskfilm-postproduction.com
>
>
> On Apr 2, 2007, at 1:35 PM, Sam Cole wrote:
>
>>> This kind of averaging has exited in Flame for 10 years under the
>>> name of compound - hardly revolutionary.
>>
>> A median is different from a mean.
>>
>> ./sam
|
|
| |
| ID: |
10780 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
howard Jones |
| Date: |
2007-04-02 16:10:04 |
|
| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
|
although if it was median used I suspect thats why its on a grey road.
On 2 Apr 2007, at 15:59, howard Jones wrote:
> Just to stick my head up my arse and be totally anal,
>
> a median isn't a form of an average, it IS by definition an average -
> taking the central point of a distribution rather than the average of
> the distribution or
> (and here comes the point) as the mode does - the most common.
>
> In the example given in CS3 surely this is a mode average rather than
> a mean or median (ie the most common colour is
> used not the central or average)?
>
> and yes this would be very handy.
>
> I would check this theory against the movie but I've lost the link.
>
> Right head out of my arse and time to enjoy the sunshine.
> Howard
>
>
>
> On 2 Apr 2007, at 15:14, Christopher Noellert wrote:
>
>> ... it's a weighted average - but it's still a form of an average,
>> which is why the trick works. Mean was also one of the choices in
>> the menu by the by.
>>
>> Regardless, the point is still valid. Still curious about the
>> entropy setting...
>>
>> Best,
>> Chris
>>
>> --
>> Chris Noellert
>> Senior Flame / Digital Post Technical Director / Prima donna
>>
>> Nordiskfilm Post Production Stockholm
>> (Formerly Filmteknik/Frithiof Film to Video. AB)
>> Tulvaktsvagen 2
>> 115 40 Stockholm
>>
>> Tel: +46 8 450 450 00
>> Fax: +46 8 450 450 01
>> Dir: +46 8 450 450 17
>> Mob: +46 7 024 616 31
>> AIM: cmnoellert
>>
>> Reel: http://se.nordiskfilm-postproduction.com/movieviewer.aspx?
>> movie=Video_250018.mov
>> Web: http://www.nordiskfilm-postproduction.com
>>
>>
>> On Apr 2, 2007, at 1:35 PM, Sam Cole wrote:
>>
>>>> This kind of averaging has exited in Flame for 10 years under the
>>>> name of compound - hardly revolutionary.
>>>
>>> A median is different from a mean.
>>>
>>> ./sam
|
|
| |
| ID: |
10781 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
howard Jones |
| Date: |
2007-04-02 16:17:50 |
|
| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
|
and just to be anal again
of course I meant to write
'the sum of the distribution divided by the total number of
elements' in place of where I used 'average'
except of course where I actually meant to use average in the line '
a median isn't a form...'
thats the trouble with being anal - just leads to all sorts of
complications.
Anyway the proper point being a modal average approach to this
problem should give the best results in my mind.
Assuming enough common pixels in the source photographs.
H
i'll shut up now.
On 2 Apr 2007, at 16:10, howard Jones wrote:
> although if it was median used I suspect thats why its on a grey road.
>
> On 2 Apr 2007, at 15:59, howard Jones wrote:
>
>> Just to stick my head up my arse and be totally anal,
>>
>> a median isn't a form of an average, it IS by definition an average -
>> taking the central point of a distribution rather than the average of
>> the distribution or
>> (and here comes the point) as the mode does - the most common.
>>
>> In the example given in CS3 surely this is a mode average rather than
>> a mean or median (ie the most common colour is
>> used not the central or average)?
>>
>> and yes this would be very handy.
>>
>> I would check this theory against the movie but I've lost the link.
>>
>> Right head out of my arse and time to enjoy the sunshine.
>> Howard
>>
>>
>>
>> On 2 Apr 2007, at 15:14, Christopher Noellert wrote:
>>
>>> ... it's a weighted average - but it's still a form of an average,
>>> which is why the trick works. Mean was also one of the choices in
>>> the menu by the by.
>>>
>>> Regardless, the point is still valid. Still curious about the
>>> entropy setting...
>>>
>>> Best,
>>> Chris
>>>
>>> --
>>> Chris Noellert
>>> Senior Flame / Digital Post Technical Director / Prima donna
>>>
>>> Nordiskfilm Post Production Stockholm
>>> (Formerly Filmteknik/Frithiof Film to Video. AB)
>>> Tulvaktsvagen 2
>>> 115 40 Stockholm
>>>
>>> Tel: +46 8 450 450 00
>>> Fax: +46 8 450 450 01
>>> Dir: +46 8 450 450 17
>>> Mob: +46 7 024 616 31
>>> AIM: cmnoellert
>>>
>>> Reel: http://se.nordiskfilm-postproduction.com/movieviewer.aspx?
>>> movie=Video_250018.mov
>>> Web: http://www.nordiskfilm-postproduction.com
>>>
>>>
>>> On Apr 2, 2007, at 1:35 PM, Sam Cole wrote:
>>>
>>>>> This kind of averaging has exited in Flame for 10 years under the
>>>>> name of compound - hardly revolutionary.
>>>>
>>>> A median is different from a mean.
>>>>
>>>> ./sam
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| ID: |
10782 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Christopher Noellert |
| Date: |
2007-04-03 18:06:01 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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My turn for anal behavior:
There are several different kinds of calculations for central
tendency, the kind of calculation that should be used depends on the
type of data (level of measurement) and purpose for which the central
tendency is being calculated:
Arithmetic mean
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| ID: |
10783 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
Christopher Noellert |
| Date: |
2007-04-03 18:10:45 |
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| Subject: |
Re: cool cleanplate generation tools in photoshop CS3 |
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Well, only half the mail showed there...
My turn for anal behavior:
There are several different kinds of calculations for central
tendency, the kind of calculation that should be used depends on the
type of data (level of measurement) and purpose for which the central
tendency is being calculated:
Arithmetic mean
Median - The middle value that separates the higher half from the
lower half of the data set
Geometric median - An rotation invariant extension of the median for
points in Rn
Mode - The most frequent value in the data set Geometric mean
Harmonic mean
Quadratic mean
(or RMS)
Generalized mean
Heronian mean
Weighted mean
So, to be truly anal, a median is in fact one of many forms of
describing central tendency, more commonly known as average.
Love peace and understanding,
Chris
--
Chris Noellert
Senior Flame / Digital Post Technical Director / Prima donna
Nordiskfilm Post Production Stockholm
(Formerly Filmteknik/Frithiof Film to Video. AB)
Tulvaktsvagen 2
115 40 Stockholm
Tel: +46 8 450 450 00
Fax: +46 8 450 450 01
Dir: +46 8 450 450 17
Mob: +46 7 024 616 31
AIM: cmnoellert
Reel: http://se.nordiskfilm-postproduction.com/movieviewer.aspx?
movie=Video_250018.mov
Web: http://www.nordiskfilm-postproduction.com
On Apr 3, 2007, at 6:06 PM, Christopher Noellert wrote:
> My turn for anal behavior:
> There are several different kinds of calculations for central
> tendency, the kind of calculation that should be used depends on the
> type of data (level of measurement) and purpose for which the central
> tendency is being calculated:
> Arithmetic mean
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| ID: |
10784 (copy to link to this post directly) |
| Thread: |
10759 |
| Owner: |
howard Jones |
| Date: |
2007-04-03 18:03:32 |
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