added application on image processing

Author: gertingold

numpy-tutorial-exercises.ipynb

@@ -2119,6 +2119,80 @@
     "## Application: polynomial fit"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": true
+   },
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Application: image manipulation"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "from scipy import misc\n",
+    "face = misc.face(gray=True)\n",
+    "face"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "plt.imshow(face, cmap=plt.cm.gray)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Modify this image, e.g. convert it to a black and white image, put a black frame, change the contrast, ..."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": []
+  },
   {
    "cell_type": "code",
    "execution_count": null,

presentation.tex

@@ -879,4 +879,42 @@
  \small{see \texttt{scipy.optimize.curve\_fit} for general fit functions}
 \end{frame}
 
+\begin{frame}[fragile]{Application: image manipulation}
+
+ \begin{lstlisting}
+from scipy import misc
+face = misc.face(gray=True)
+ \end{lstlisting}
+
+ \vspace{-0.2truecm}
+ \begin{columns}
+  \begin{column}{0.33\textwidth}
+   \begin{center}
+    \includegraphics[width=0.9\textwidth]{face0}
+    
+    \vspace{2.4truecm}
+   \end{center}
+  \end{column}%
+  \begin{column}{0.33\textwidth}
+   \begin{center}
+    \includegraphics[width=0.9\textwidth]{face1}
+
+    \includegraphics[width=0.9\textwidth]{face3}
+   \end{center}
+  \end{column}%
+  \begin{column}{0.33\textwidth}
+   \begin{center}
+    \includegraphics[width=0.9\textwidth]{face2}
+
+    \includegraphics[width=0.9\textwidth]{face4}
+   \end{center}
+  \end{column}%
+ \end{columns}
+
+ \vspace{0.2truecm}
+ \begin{center}
+  \includegraphics[width=3truecm]{yourturn}
+ \end{center}
+\end{frame}
+
 \end{document}