Read satellite images

[jorge.conrado at cptec.inpe.br]

Hi,

I have some gridded 4Km satellite images. I don't have experience with 
Python. The size of my image is (9896,3298) and I use this to read

f = open('merg_2018011100_4km-pixel', "r")  # reopen the file

x = f.read()

print (x[0])


I have this value for x = �


This is the information for this data from where I did the ftp: the data 
is 1-byte.

Please, what can I do to get the value in ascii.


Thanks,

Conrado