Digital BW, The Print

On 5/28/03 11:55 AM, "Anthony Atkielski" <anthony@...> wrote:

> Austin writes:
> 
>> The other option is that I'm correct, and you are
>> wrong.  Strongly consider that.
> 
> Why?  You've provided even less support for your position than I have.
> 
>> I suggest you do a web search.
> 
> No, I want to see you provide an example.  You say you see it all the time,
> it should be trivial.  How about a program or something that does it?  Plug
> in three RGB values, and out comes the grayscale value.  It must work for
> any type of light in the original scene.  It must duplicate the grayscale
> image obtained by photographing the scene directly with Tri-X.

Anthony,

All you need to do is search the archives of this list.  We've discussed
this many times before.  There are several companies that make photoshop
plugins to convert RBG images into various type of BW film.  Try
silveroxide.com for one. They work very well.  Of course what they do not
simulate is the difference in grain structure...and this would be much more
difficult...but most people that are interested in doing the RGB to BW
conversion are interested in doing it either for Digital capture or for
transparency film images that are relatively free of grain...so they
probably don't care about this.

Robert