Add readme for lutLab

Author: mfe

lutLab/README.md

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+LUT Lab
+========================
+
+** Developments under progress **
+
+Utility scripts to convert and manipulate Look Up Tables.
+It uses [OpenColorIO](http://opencolorio.org/) to read and process input LUTs.
+
+Available scripts :   
+
+- **lut_to_lut**: convert a lut into another format. For now, only conversion to 1D/2D cube or 1D/2D csp is supported   
+
+- **ext_1d_lut**: extract the tone mapping curve of a 3D LUT using a bicubic interpolation (or not)   
+
+
+Supported input LUT formats : 3dl, csp, cub, cube, hdl, look, mga/m3d, spid1d, spi3d, spimtx, vf.   
+See [OpenColorIO FAQ](http://opencolorio.org/FAQ.html) for more informations.
+
+Requirements
+------------
+- Python
+- OpenColorIO Python binding
+
+Optional:   
+- matplotlib + a backend (for exemple Qt, Gtk...)
+
+Tested config
+-------------
+- Python 2.6, Qt 4.8, OpenColorIO 1.0.8, matplotlib 1.2 on openSuse 12.1
+
+Command line usage
+-----
+See command line help :   
+`lut_to_lut.py -h`   
+`ext_1d_lut.py -h`   
+
+Screenshots
+-----------
+ext_1d_lut : no smooth vs smooth option
+![ext_1d_lut](https://dl.dropboxusercontent.com/u/2979643/ext_1d_lut_compare.png "ext_1d_lut")
+
+