[thelist] ImageMagick Tiff Conversion RGB to Grayscale

[Jeff Howden]

Listees,

Using ImageMagick 6.2.7 05/26/06 Q16 to do some image schtuff.  We're
currently producing some high quality TIFF files for print in the RGB
colorspace.  Client asked today about producing some in the Gray colorspace.
I've gone round and round and round with various permutations of the convert
command and cannot come up with a satisfactory result compared with what I'm
able to produce with Photoshop.

I've poured over the ImageMagick documentation and have been unable to
achieve the desired result.

Here's a list of all the properties that need to be adjusted:

         Type:  TrueColor -> Grayscale
   Colorspace:  RGB -> Gray
Channel Depth:  Red (8-bits), Green (8-bits), Blue (8-bits) -> Gray (8-bits)
       Colors:  77212 -> 256

Comparing verbose properties side by side, another difference I see is
"Class".  I may need to go from DirectClass to PseudoClass.

Does anyone have experience doing exactly this or happen to know of a
resource the describes the precise steps/commands to accomplish it?

Thanks,

 [>] Jeff Howden
     jeff at jeffhowden.com
     http://jeffhowden.com/