photo manipulation

[Paul E. Hargraves]

Taxacomers:
Changing the recent threads abruptly, I am wrestling with a problem
I'm sure others have dealt with.  One often sees former black/white
photos reproduced in various science magazines in blazing color, esp.
SEM & TEM photos.  I assume this is done with Photoshop in some way.
Can someone give details on how this is done?
PEH
--
Paul E. Hargraves
"Schau auf zu den Sternen, hab acht auf die Gassen" [-W. Raabe, 1831-1910]
"Eamus, O Celtae; Eamus, O Tibialia rubentia" [anonymous, 64 B.C.]