Mosaics with Matlab

I hope you liked the picture on my home page... how I did it?
Actually is not that hard... I used Matlab to analyse the original picture and grab bunches of pixels (which were to be replaces by a single small photo) to check things like average R, G, and B values, average Intensity, horizontal and vertical intensity change, etc. In total I used 13 different characteristics (the footprint if you wish) of that bunch of pixels, and then find the best match among the pool of little pictures I had. Here are some results...