Merge branch 'master' of raven.am28.uni-tuebingen.de:scientificComputing

projects/pca_natural_img/Makefile

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+latex:
+	pdflatex *.tex > /dev/null
+	pdflatex *.tex > /dev/null
+	pdflatex *.tex > /dev/null
+
+clean:
+	rm -rf *.log *.aux *.zip *.out auto *.bbl *.blg
+	rm -f `basename *.tex .tex`.pdf
+
+zip: latex
+	zip `basename *.tex .tex`.zip *.pdf *.jpg

projects/pca_natural_img/pca_natural_images.tex

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+\documentclass[addpoints,10pt]{exam}
+\usepackage{url}
+\usepackage{color}
+\usepackage{hyperref}
+
+\pagestyle{headandfoot}
+\runningheadrule
+\firstpageheadrule
+\firstpageheader{Scientific Computing}{Project Assignment}{11/05/2014
+  -- 11/06/2014}
+%\runningheader{Homework 01}{Page \thepage\ of \numpages}{23. October 2014}
+\firstpagefooter{}{}{}
+\runningfooter{}{}{}
+\pointsinmargin
+\bracketedpoints
+
+%\printanswers
+%\shadedsolutions
+
+
+\begin{document}
+%%%%%%%%%%%%%%%%%%%%% Submission instructions %%%%%%%%%%%%%%%%%%%%%%%%%
+\sffamily
+% \begin{flushright}
+% \gradetable[h][questions]
+% \end{flushright}
+
+\begin{center}
+  \input{../disclaimer.tex}
+\end{center}
+
+%%%%%%%%%%%%%% Questions %%%%%%%%%%%%%%%%%%%%%%%%%
+
+In you zip file you find a natural image called {\tt natimg.jpg}. 
+\begin{questions}
+
+  \question Load the image and extract all pixels as three dimensional
+  vectors (red, green, and blue channel). 
+  
+  \question Perform a principal component analysis on these
+  three-dimensional vectors.
+
+  \question Try to find a interpretation of the principal components
+  you find in terms of colors. Find a good way to visualize this. 
+
+  \question What could be the biological significance of that (\cite{BG} can
+  give you a clue)?
+
+\end{questions}
+
+\begin{thebibliography}{1}
+\bibitem{BG} Buchsbaum, G., \& Gottschalk, A. (1983). Trichromacy,
+  opponent colours coding and optimum colour information transmission
+  in the retina. Proceedings of the Royal Society of London. Series B,
+  Containing Papers of a Biological Character. Royal Society (Great
+  Britain), 220(1218), 89–113.
+\end{thebibliography}
+
+
+
+\end{document}