|
| 1 | +\documentclass[10pt,presentation,compress]{beamer} |
| 2 | + |
| 3 | +\usepackage{graphicx} |
| 4 | +\usepackage{parskip,amssymb,amsmath,amsthm,url} |
| 5 | +\usepackage{subfigure} |
| 6 | +\usepackage{esdiff} |
| 7 | +\usepackage{latexsym} |
| 8 | +\usepackage{color} |
| 9 | + |
| 10 | +\title{How to choose a good colour map} |
| 11 | +\author{Damon McDougall} |
| 12 | +\institute{Institute for Computational and Engineering Sciences, UT Austin, USA} |
| 13 | +\date{20th April 2012} |
| 14 | + |
| 15 | + |
| 16 | + \usetheme{Singapore} |
| 17 | + \setbeamertemplate{navigation symbols}{} |
| 18 | + \setbeamertemplate{mini frames}{} |
| 19 | + \setbeamertemplate{section in head/foot}{} |
| 20 | + \setbeamercovered{transparent=0} |
| 21 | + \setbeameroption{show notes} |
| 22 | + \setbeamertemplate{footline} |
| 23 | + { |
| 24 | + \leavevmode |
| 25 | + \hbox{ |
| 26 | + \begin{beamercolorbox}[wd=.99\paperwidth,ht=2.5ex,dp=1.125ex,right]{title in head/foot} |
| 27 | + \usebeamerfont{}\insertframenumber/\inserttotalframenumber |
| 28 | + \end{beamercolorbox} |
| 29 | + } |
| 30 | + \vskip 0pt |
| 31 | + } |
| 32 | +} |
| 33 | +\mode<handout> { |
| 34 | + \usetheme{Rochester} |
| 35 | + \usepackage{pgfpages} |
| 36 | + \pgfpagesuselayout{4 on 1}[a4paper,landscape,border shrink=5mm] |
| 37 | + \setbeamertemplate{background canvas}{bg=black!5} |
| 38 | + \setbeamercolor{normal text}{fg=black} |
| 39 | +} |
| 40 | + |
| 41 | +\newcommand{\ud}{\,\mathrm{d}} |
| 42 | +\newcommand{\grad}{\nabla} |
| 43 | +\newcommand{\Var}{\mbox{Var}} |
| 44 | +\newcommand{\Cov}{\mbox{Cov}} |
| 45 | +\newcommand{\argmin}{\mbox{argmin}} |
| 46 | + |
| 47 | +\newcommand{\iid}{ |
| 48 | + \ensuremath{ |
| 49 | + \stackrel{\mbox{\scriptsize{i.i.d}}}{\sim} |
| 50 | + } |
| 51 | +} |
| 52 | + |
| 53 | +\newcommand{\norm}[1]{ |
| 54 | + \ensuremath{\left\| #1 \right\|} |
| 55 | +} |
| 56 | + |
| 57 | +\begin{document} |
| 58 | +\begin{frame} |
| 59 | + \titlepage |
| 60 | +\end{frame} |
| 61 | + |
| 62 | +\begin{frame}{Overview} |
| 63 | + \begin{enumerate} |
| 64 | + \item Introduction |
| 65 | + \item Hating on the jet colourmap |
| 66 | + \item ITEM 2 |
| 67 | + \item ITEM 3 |
| 68 | + \item ITEM 4 |
| 69 | + \end{enumerate} |
| 70 | +\end{frame} |
| 71 | + |
| 72 | +\begin{frame}{Introduction} |
| 73 | + Most of the content is taking from this excellent article: |
| 74 | + \linebreak |
| 75 | + \linebreak |
| 76 | + \textcolor{blue}{\small{\url{http://www.research.ibm.com/people/l/lloydt/color/color.HTM}}} |
| 77 | +\end{frame} |
| 78 | + |
| 79 | +\begin{frame}{Introduction} |
| 80 | + \begin{itemize} |
| 81 | + \item Data is a huge aspect of science |
| 82 | + \item By and large we (scientists) treat data well\dots |
| 83 | + \item \dots and we visualise it poorly. Why? |
| 84 | + \item Colour maps |
| 85 | + \item Data is of some field |
| 86 | + $f : \Omega \subset \mathbb{R}^2 \to [0, 1]$ |
| 87 | + \item A colour is assigned to the output of $f$ (a scalar). Seems |
| 88 | + reasonable. |
| 89 | + \item Colour map is a function |
| 90 | + $g : [0, 1] \to \Omega' \subset \mathbb{R}^3$ |
| 91 | + \item Mismatch in dimensions: $\mathbb{R}^3$ versus $\mathbb{R}$ |
| 92 | + \item The point? Colour maps can be misleading. |
| 93 | + \end{itemize} |
| 94 | +\end{frame} |
| 95 | + |
| 96 | +\begin{frame}{Hating on the jet colour map} |
| 97 | + What is this? |
| 98 | + \begin{figure}[htp] |
| 99 | + \includegraphics[scale=7.0]{florida_masked.jpg} |
| 100 | + \end{figure} |
| 101 | +\end{frame} |
| 102 | + |
| 103 | +\begin{frame}{Hating on the jet colour map} |
| 104 | + Did anybody see Florida? |
| 105 | + \begin{figure}[htp] |
| 106 | + \includegraphics[scale=7.0]{florida.jpg} |
| 107 | + \end{figure} |
| 108 | + \begin{itemize} |
| 109 | + \item Left: Linear interpolation in RGB space between red and blue. |
| 110 | + \item Right: Changes in data are \textit{perceived} as proportional |
| 111 | + changes in colour (subjective) |
| 112 | + \item Right: Domain specific knowledge used to reveal important features |
| 113 | + \end{itemize} |
| 114 | +\end{frame} |
| 115 | + |
| 116 | +\begin{frame} |
| 117 | + \begin{center} |
| 118 | + Thank you. |
| 119 | + \end{center} |
| 120 | +\end{frame} |
| 121 | + |
| 122 | +\end{document} |
0 commit comments