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Table of Contents
1 INTRODUCTION 1
2 IMAGES 1
2.1 BASICS 1
2.1.1 IMAGE TYPES 1
2.1.2 IMAGE ACQUISITION 2
2.2 MANIPULATION 4
2.3 COLORS 5
2.4 COMPRESSION 6
2.4.1 TECHNIQUES 7
2.5 FILE FORMATS 7
2.6 PLUG-INS AND VIEWERS 9
3 DATABASE 9
3.1 DATABASE TYPES 10
3.1.1 RELATIONAL DBMS 10
3.1.2 OBJECT ORIENTED DBMS 10
3.1.3 TEXT ORIENTED DBMS 11
3.2 IMAGE DESCRIPTION 11
3.2.1 KEY SYSTEMS 11
3.2.2 CONCEPTUAL GRAPHS 12
4 WWW INTERFACE 12
4.1 FILE SYSTEM VERSUS DATABASE 13
4.2 GENERAL ARCHITECTURE 14
4.2.1 FORMS INTERFACE 14
4.2.2 THE COMMON GATEWAY INTERFACE 16
4.2.3 DATABASE SERVER DEMON 16
4.3 TOOLS 16
4.3.1 GSQL 17
4.3.2 INTERNET INFORMATION SERVER 20
4.4 DATABASE VERSUS INFORMATION RETRIEVAL 22
4.5 INTERFACE DESIGN 22
4.6 INTEGRATION OF DISTRIBUTED DATA 22
4.6.1 ACCESS TIMES 23
4.6.2 CONSISTENT VIEW 23
5 CASE STUDY: DOIA 24
5.1 IMAGES 24
5.2 THE LOCAL DATABASE 25
5.3 MAPPING THE LOCAL DATABASE TO THE WEB 25
5.4 ACCEPTANCE AND USER PROFILE 25
6 SUMMARY 26
7 ACKNOWLEDGMENTS 26
8 REFERENCES 27