Client for server found at https://github.com/radialapps/android-java-to-.NET-socket
Protocol is explained at the same page.
IP Address: Address or hostname running the server
Port: Defaults to 3800
Maximum Image Dimension: The image is resized to have this as the higher image dimension, keeping aspect ratio constant
Quality: Sets the compression level
In Client 1.2Now you can share images directly to Client