changes on readme file

README

@@ -1,3 +1,4 @@
+==================== C++ =================================
 
 Implementation of the segmentation algorithm described in:
 
@@ -5,7 +6,7 @@ Efficient Graph-Based Image Segmentation
 Pedro F. Felzenszwalb and Daniel P. Huttenlocher
 International Journal of Computer Vision, 59(2) September 2004.
 
-The program takes a color image (PPM format) and produces a segmentation
+The program [segment.cpp, note by A. Freytag] takes a color image (PPM format) and produces a segmentation
 with a random color assigned to each region.
 
 1) Type "make" to compile "segment".
@@ -26,3 +27,13 @@ Larger values for k result in larger components in the result.
 
 NOTE ( by Alexander Freytag )
   - only images with less then std::numeric_limits<int>::max() pixels are supported properly!
+
+
+=============== MATLAB ==============
+
+ [Compilation] 
+     - run compileFelzenszwalbSegmentation.m
+
+ [Demo]
+     - run demoFelzenszwalbSegmentation.m (requires matlabs GUI to show images and segmentation results)
+     - demo file shows how to setup variables, and how to call the underlying mex functions