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ANALOGIC TECHNIQUES OF DATA ENHANCEMENT APPLIED IN 
THE STUDY OF GEOLOGIC AND GEOTHERMAL FEATURES OF 
TEST-SITES IN THE ITALIAN REGION (CENTRAL ALPS AND 
VOLCANIC AREAS) ILLUSTRATED BY THE IMAGES FROM ERTS-1 
AND OTHER REMOTE SENSING PLATFORMS 
Lechi G.M. Tornelli A.M. 
Laboratorio per la Geofisica della Litosfera del C.N.R. 
Milano - Italy 
Marino C.M. 
Cattedra di Fisica Terrestre - Università di Milano 
Milano - Italy 
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ABSTRACT 
The argument of this note deals with the data collec 
ted over Italian test-sites during five years of R.S. ac 
tivity. Some of the techniques employed during the collec 
tion and the treatment of this kind of informations are he 
re presented with original examples. 
RESUME 
L'étude ici présenté est la synthèse de 5 années de 
recherche performé en Italie sur la télédétection et l'in 
terprétation des données dans les different domaines des 
applications. 
ZUSAMMENFASSUNG 
Diese Arbeit ist eine Synthese von 5 Erforschungjahren 
auf Fernerkundung Interpretation und Aufbereitung für 
viele verschiedene Anwendungen. 
INTRODUCTION 
This paper deals with the results of the Remote Sensing 
programme enterprised by a group of researchers belonging 
to a section of Laboratorio per la Geofisica della Litosfe 
ra composed of people of National Research Council and of 
the University of Milan. Vie intend to present here a resume 
of our activity showing different examples of the applications