956 
(Vasa 1980) based on the methodology below 
has been developed within the Institute of 
Geodesy, Photogrammetry, Cartography and 
Land Management (I.G.F.C.O.T.): 
- Zone pixel selection in CCT Landsat strip 
and radiometric measure introduction in a 
file, which can be processed, using Fortran 
language. 
- The general pixel population histogram 
development in the first two main components. 
Histogram is directly made in a file and a 
printing list is obtained. 
- Classes to be separated are established 
on a histogram. Each class is included in a 
number of rectangulars parallel to the axes. 
A card containing the old class number, the 
new class number and rectangular size is 
punched for each rectangular. 
- A printed histogram for each established 
class in the first two main components of the 
respective class is developed. All histograms 
are compiled and printed at only one pro 
gramme running. If some histograms give pos 
sibility to devide the respective classes, 
the process should be repeated. If all histo 
grams show class homogeneities, the operation 
is over. 
These classified images are used to obtain 
a graphical representation at a desired soale, 
in a plotter. 
All package programmes corresponding to the 
above mentioned process stages have been de 
veloped, imagery delivered by Landsat satel 
lites were processed, small scale maps show 
ing land-use were compiled, and other themes 
were studied, using this system. The findings 
were good enough for such geographic informa 
tion systems (Geo-Information Systems). 
REFERENCES 
Zegheru, N. & D.Gheorghlu 1984. Data bank 
for land cadastre. Analele I.G.F.C.O.T. 6: 
35-46. 
StefanoviS, P. 1980. Computer assisted map 
ping. I.T.C. Journal, Special Issue.4:606- 
637. 
Zegheru, N. 1981. Prospects related to digi 
tal mapping in our institute (I.G.F.C.O.T.) 
Analele I.G.F.C.O.T. 3:37-46. 
Zegheru, N., D.Gheorghlu, A.Fusoi, G.GalburS. 
!t Z.Doroghy 1982. Data base for digital ca 
dastral maps. Analele I.G.F.C.O.T. 4:43-49. 
Fusol, A., G.GalburS. & D.Gheorghlu 1981. Con 
ventional slgns for automated topographic 
mapping. Analele I.G.F.C.O.T. 3:63-69. 
Zegheru, N. 1976. Land-use map compilation 
using the satellite images. Surveys for 
Development - I.T.C. Enschede, The Nether 
lands. 
Vass, G. 1980. Remote sensing multispectral 
digital data processing. Analele I.G.F.C. 
O.T. 2:97-108.