[Tig] instinctive contrast

[Patrick Morgan BT]

Nice one Rob.. 

I have to say that this discussion really interests me...unfortunately I
have no answers
but I think a purely technical explanation probably won't suffice for this
question.

Personally I have a much more emotional response to B&W than colour...for
whatever reason.

It would be interesting to take a test image and see to which level people
have to satisfy 
Their need for contrast when removing the colour, I realise that white and
balck levels can 
be measured, but the shades inbetween are very much open to interpretation,
whereas in a colour
image we have so many references as to what would be "right" or "wrong"

Sorry not to actually contribute, but I will follow the tread with interest.

Patrick Morgan
The Sanctuary

Ps : Any FilmMaster users out there, get in touch....


-----Original Message-----
From: tig-bounces at tig.colorist.org [mailto:tig-bounces at tig.colorist.org] On
Behalf Of Rob Lingelbach
Sent: 18 March 2007 17:46
To: S. T. Nottingham III
Cc: Telecine Internet Group
Subject: Re: [Tig] instinctive contrast

Thanks to Cintel International for support in 2007.
http://www.colorist.org/wiki3 ====


 

On Mar 18, 2007, at 1:42 AM, S. T. Nottingham III wrote:

> I am sure most good engineers could give you a technical explanation 
> of this phenomena, and for someone on the level of Dave Tosh (whom I 
> really admire and respect),

hear, hear.

I agree with everything you wrote Tom and appreciate the reply.
I had the opportunity not long ago to test, for a commercial that would air
in b+w, shooting on various color stocks and shooting on
b+w stock.  Needless to say the b+w stock won, for the reasons you
mentioned.

Forgetting film for a moment, and just talking about an 'image', the
question still remains for me: why is it we must add contrast to an image
that is originally in color, when we pull out the color?  I'm in search of a
scientific explanation; I've known about the phenomenon since the 1970s,
when I first sat in the chair.

Your dissertation on luminance and chroma deserves a place on the wiki, I'll
wait for this thread to spin out and combine it with other possible
responses in the technical discussions section.

Rob

--
Rob Lingelbach
http://www.colorist.org/robhome.html
rob at colorist.org  rob at lingelbach.us



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