--- a/writeup/techreport.tex	Fri Apr 30 16:23:45 2010 -0400
+++ b/writeup/techreport.tex	Fri Apr 30 16:24:35 2010 -0400
@@ -192,7 +192,7 @@
 
 \subsection{Color and Contrast Changes}
 This filter changes the constrast and may invert the image polarity (white on black to black on white). The contrast $C$ is defined here as the difference 
-between the maximum and the minimum pixel value of the image. A contrast value is sampled uniformly between $1$ and $1-\0.85 \times complexity}$
+between the maximum and the minimum pixel value of the image. A contrast value is sampled uniformly between $1$ and $1-0.85 \times complexity}$
 (this insure a minimum constrast of $0.15$). We then simply normalize the image to the range $[\frac{1-C}{2},1-\frac{1-C}{2}]$. The polarity 
 is inverted with $0.5$ probability.