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Question about Section ! [message #22930]

Fri, 22 December 2000 12:06

Sergio Ahumada N.
Messages: 2
Registered: December 2000

Junior Member

How can I get the histogram of a portion of an image ? I have a image
with several homogeneous groups (a SAR image) and I only desire display the
histogram of "one" of these groups. Do you understand ? Any idea ? I will
try
with this function but this don't work :(

PRO this_dont_work
OPENR, 1, 'i99op99af0901x1_ch1_t01_slc.dat', /XDR
INFO = INTARR(2)
READU, 1, INFO
COL = INFO(0)
LIN = INFO(1)
COMPIMA = COMPLEXARR(COL, LIN)
READU, 1, COMPIMA
CLOSE, 1

pedazo = compima(364:863, 4173:4672)
peda = pedazo(0:241,0:390)

T2=COMPLEX(1,1)
for X=90, 240 do begin
Y=floor((6/5)*X+109)
print, X, Y
peda(X,0:Y)=T2
endfor
WINDOW, 2, XSIZE = 241, YSIZE = 390, TITLE='W2 Peda con filtro'
TVSCL, HIST_EQUAL(ABS(peda))
End

6/5*X + 109, 90<X<240, is the section that I want to display

Saludos !
--
Sergio Antonio Ahumada Navea mailto:san@inf.utfsm.cl
Departamento de Informatica Valparaiso
Universidad Tecnica Federico Santa Maria Chile

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Question about Section !

By: Sergio Ahumada N. on Fri, 22 December 2000 12:06

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