Thanks for your reply NebulaBytes...i solved my problem..Problem i faced was that, i retrieved response in json format from server, which contains image data in ordinary string. then i am trying to convert it into bitmap in client side, but it returned me null.
I think now you understand what my problem was...
Then i found the reason behind this...that is i am not doing any encoding(Base64) in server side to convert the image data into string, which can be decoded in client side to get actual image data. After doing this i can get the image perfectly in client side... again thanks for your reply..
One more doubt, i need to know that is that the only way to retrieve image data from server using REST Service?..