Hue/Saturation to simulate filters w/ B&W film

B
Posted By
Brian
Jun 30, 2005
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414
Replies
5
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Closed
I’ve been playing with the dual hue/saturation adjustment layer technique for simulating the use of color filters when converting color images to black and white.

The only problem is that besides viewing how the image changes with each hue adjustment and estimating what filter I might be simulating, I have no idea how to tell what color filter I am actually simulating.

For example, if I set the hue to around -150 (a number that seems to be about right for simulating an orange filter) how do I know it’s actually simulating an orange filter?

I guess my problem is more with figuring out how it works…

If this didn’t make any sense, I apologize 🙂

Brian

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LI
Lorem Ipsum
Jun 30, 2005
"Brian" wrote in message
I’ve been playing with the dual hue/saturation adjustment layer technique for simulating the use of color filters when converting color images to black and white.

Not a good way to approach the problem. In a moment, the Curvemeister will chime in with some good info.
S
saswss
Jun 30, 2005
In article ,
"Brian" writes:
I’ve been playing with the dual hue/saturation adjustment layer technique for simulating the use of color filters when converting color images to black and white.

What you want is a Channel Mixer Layer, definitely not
a Hue/Saturation layer. Put a check in the Monochrome box to convert to B&W.



Warren S. Sarle SAS Institute Inc. The opinions expressed here SAS Campus Drive are mine and not necessarily
(919) 677-8000 Cary, NC 27513, USA those of SAS Institute.
N
nomail
Jul 1, 2005
Warren Sarle wrote:

In article ,
"Brian" writes:
I’ve been playing with the dual hue/saturation adjustment layer technique for simulating the use of color filters when converting color images to black and white.

What you want is a Channel Mixer Layer, definitely not
a Hue/Saturation layer. Put a check in the Monochrome box to convert to B&W.

Nonsense. The dual saturation adjustment layer method was developed by Russel Brown. It works very well. The Channel Mixer also works fine, of course.


Johan W. Elzenga johan<<at>>johanfoto.nl Editor / Photographer http://www.johanfoto.nl/
S
saswss
Jul 1, 2005
In article <1gz0ud9.1i6k9rf1o0piueN%>,
(Johan W. Elzenga) writes:
Warren Sarle wrote:

In article ,
"Brian" writes:
I’ve been playing with the dual hue/saturation adjustment layer technique for simulating the use of color filters when converting color images to black and white.

What you want is a Channel Mixer Layer, definitely not
a Hue/Saturation layer. Put a check in the Monochrome box to convert to B&W.

Nonsense. The dual saturation adjustment layer method was developed by Russel Brown. It works very well. The Channel Mixer also works fine, of course.

Brian says he wants to simulate the use of color filters in black and white photography. The Channel Mixer does precisely that in a simple, direct way. For an orange filter, as Brian mentioned, just turn up the red, turn down the green a little, and turn down the blue a lot.

Doing this with dual H/S layers is much more cumbersome, confusing, and inefficient. Note that Brian was trying to use the hue slider to simulate the orange filter, which does not work. Most of the people reading this newsgroup probably have no idea why the hue slider would have any effect on the resulting grayscale image.



Warren S. Sarle SAS Institute Inc. The opinions expressed here SAS Campus Drive are mine and not necessarily
(919) 677-8000 Cary, NC 27513, USA those of SAS Institute.
B
Brian
Jul 5, 2005
Thanks everyone for all the great info!!! I looked at the tutorial on the Adobe site and it seems to make sense. I’m not sure if it’s any more flexible than Channel Mixer adjustment layers but I haven’t had a chance to try it out yet. It seems to me that the same result can be acheived using multiple different methods, the Channel Mixer being the easiest – not to say that it makes it ‘easy’ though.

Thanks!

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