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Ardo Illaste edited Results.md
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# Results
## Pixel by pixel event classification
The algorithm is presented schematically on figure 1. Each subroutine is explained in detail below.
### Image preprocessing
The only preprocessing step used is convolving the image with a \((2n+1)\times(2n+1)\) kernel where the center element is \(1/(n+1)\) and the k-th layer surrounding the center is made up of values \(1/(8k\cdot(n+1))\). For example, when n=1 the kernel would be
\[
\left( \begin{array}{ccc}
1/16 & 1/16 & 1/16\\\\
1/16 & 1/2 & 1/16\\\\
1/16 & 1/16 & 1/16 \end{array} \right)
\]
Convolving the image with this kind of kernel reduces the noise while retaining more of the original signal than simple averaging. Contributions from the i-th layer around the center will have the same weight as the central pixel. In this work we use the kernel with \(n=1\).