*Project Title* A comparative Study of Image Descriptors based on Spatial Relationships. *Project Description* Spatial relationships among objects often capture the most relevant information within an image. This project aims to perform a comparative study of image descriptors based on spatial relationships. This project will involve the following tasks: * Implementing a set of image descriptors based on spatial relationships of objects; * Comparing these descriptors in terms of common measures like precision and recall; * Code documentation. *Language/technology skills* C language. *Number of People* 1-2 *Project Resources* 1. 2D-strings 2. R-Histogram 3. IFT-based algorith