This software prototype contains a Java framework for privacy-preserving content-based image retrieval in the Cloud. The framework is based on a new image encryption scheme specifically-tailored for images and their retrieval based on color contents, which is also implemented. The framework is comprised of a client and server modules, and remote communication is done through JAVA RMI. This prototype was used for the experimental evaluation of the following technical report: http://asc.di.fct.unl.pt/~bf/IES-CBIR. An implementation of the relevant related approaches is also included, as described in the report, including: an implementation of an Order Preserving Encryption scheme (based on https://css.csail.mit.edu/cryptdb/), a Searchable Symmetric Encryption approach (http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=813309) and an implementation of a Paillier-based SIFT approach (http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6216412&tag=1).