Reduce image size to avoid frag heap when uploading to server

I want to ask you how can I improve my code in my new application which is uploading photos to server. I am following open source code and it works fine but I always get like 180Mb heap and I think some older phones may not handle it. The code is on page : http://ift.tt/1DyQ1VL Basically, I didn't change anything just copied the code for uploading. Do you have any ideas how to fix this ?