diff --git a/README.md b/README.md
index b99749c..c6ca1f2 100644
--- a/README.md
+++ b/README.md
@@ -16,3 +16,19 @@ The following are important components using in the projects:
 -  SparseMatrixCV: A sparsematrix wrapper for OpenCV
 -  Vesselness-cuda: cuda version of the vesselness measure, still under construction
 -  EigenDecomp: eigenvalue decomposition of a 3 by 3 symetric matrix
+
+
+Requirements
+---------------
+1. A graphic card which supports OpenGL 4.0
+2. Microsoft Visual Studio 2010 (or higher) 
+
+3. This project requires freeglut 2.8.1, glew 1.10.0 and OpenCV 2.8.4. You have to add the following directories to PATH: 
+
+ - `%CD%\dependencies\freeglut 2.8.1\x64;`
+ - `%CD%\dependencies\glew-1.10.0\bin\x64;`
+ - `%CD%\dependencies\OpenCV 2.4.3\x64-vc10;`
+
+Note: %CD% above means the location where you save the files. 
+
+Or you can copy the dlls in their bin folders to the project directory either manually or excute the bat file `set-up-dlls.bat`.