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Re: converting color images to grayscal

2002-09-07 by Rick Schiller

In Photoshop try looking at individual channels and/or blending 2 of them to
get what you want.  You then convert the one or blended channels to a
grayscale.   A good way to get into this is just have the green channel
showing and convert it to grayscale and then compare it to the full rgb
version converted.    The green often gives very good information and
converts well but also try blending in (using blend) a bit of the blue
channel or sometimes red.

Rick



> Message: 3
>    Date: Sat, 07 Sep 2002 05:15:07 -0000
>    From: "bensongary" <bensonga@...>
> Subject: Converting color images to grayscale
>
> I've always used the Photoshop Image->Mode command when I needed to
> convert a color image to grayscale, but I've seen various references
> to other software used for this purpose.  I'd appreciate any
> information on what software I might consider as an alternative to
> Photoshop for this purpose and also any technical info on what the
> software is doing (whether Photoshop or other) when an image is
> converted from color to grayscale.  Also, any thoughts on how to
> evaluate Photoshop vs the alternatives with respect to the conversion
> process and resulting image.  In other words, in what way would my
> grayscale images be better if I used a program other than Photoshop 6
> do to the conversion?
>
> TIA,
>
> Gary Benson
> Eagle River, Alaska
>
>
>
>

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