Anamorphism is completly different than anamorphosis.  The article for anamorphism really describes anamorphosis.  Anamorphosis deals with artistic perspectives, whereas anamorphism is a science term.

Below are definitions for anamorphism from Dictionary.com:

Dictionary.com Unabridged (v 1.0.1) - 
an‧a‧mor‧phism  /ˌænəˈmɔrfɪzəm/ Pronunciation Key - Show Spelled Pronunciation[an-uh-mawr-fiz-uhm] Pronunciation Key - Show IPA Pronunciation 

–noun Geology metamorphism, usually occurring deep under the earth's surface, that changes simple minerals to complex minerals.  

Compare katamorphism. 

[Origin: 1830–40; ana- + -morphism] 
Dictionary.com Unabridged (v 1.0.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006. 
Webster's Revised Unabridged Dictionary - Cite This Source 
anamorphism

\An`a*mor"phism\, n. [Gr. ? again + ? form.] 1. A distorted image.

2. (Biol.) A gradual progression from one type to another, generally ascending. Huxley.

Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc. 
WordNet - Cite This Source 
anamorphism

n 1: the evolution of one type of organism from another by a long series of gradual changes [syn: anamorphosis] 2: metamorphism that occurs deep under the earth's surface; changes simple minerals into complex minerals [ant: katamorphism] 3: a distorted projection or perspective; especially an image distorted in such a way that it becomes visible only when viewed in a special manner [syn: anamorphosis]

WordNet ® 2.0, © 2003 Princeton University 
On-line Medical Dictionary - Cite This Source 
anamorphism

anamorphism: in CancerWEB's On-line Medical Dictionary

On-line Medical Dictionary, © 1997-98 Academic Medical Publishing & CancerWEB