Added instructions for getting the script working on a Mac

README.md

@@ -10,13 +10,51 @@ quickly.
 Original details are at http://www.sublimetext.com/~jps/animated_gifs_the_hard_way.html
 
 ## Getting Started (Compiling the Example)
+
+### 1. Install dependencies
+**Linux**
 ```
 sudo apt-get install pngcrush python-opencv python-numpy python-scipy
+```
+**Mac**
+
+See http://penandpants.com/2012/02/24/install-python/
+and https://github.com/mxcl/homebrew/issues/18877
+
+```
+# NumPy
+pip install numpy
+
+# SciPy
+brew install gfortran
+pip install scipy
+
+# PIL - Python Image Library
+pip install pil
+
+# OpenCV
+brew tap homebrew/science
+brew install opencv
+
+# GTK+ for Python
+brew install pygtk
+
+# PNG Crush
+brew install pngcrush
+```
+
+
+
+
+### 2. Run
+```
 python anim_encoder.py example
 firefox example.html
 ```
 
 
+
+
 ## Capturing your own images
 Images will be saved to capture, you simply need to run capture.py and then go about your task.
 Note you can just delete frames you don't want as you initially set up, should save you some