blob

i have a new problem
i want to implement that a picture stroing in the object
fo example i have a website than i upload it to server
and server save it to database with ozone blob
so what kind of class i have to use it?
i very confuse with this
cause i only know how to show the picture from location of 
file
with mediaTracker
but i don't know how to save and show it if this pic 
convert to binary
would you like to explain to me?
from how to convert the image source to save data binary 
in database and from database to show the image to user 
interface. i use web base.
or may be give me some example

i really need your help.

from my previous question and your answer
i have one step more to complete my final task
so i really need you backup and your explanation
thanks a lot
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