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<div class="fragment"><pre class="comment"> centerSurround - computes center-surround difference maps.

 [featureMaps,csLevels] = centerSurround(pyramid,salParams)
    computes the center-surround maps in the pyramid
    according to the parameters in salParams.

    featureMaps is a vector of maps with the results.
    csLevels returns the center and surround levels in
       pyramid for later reference.

 See also <a href="defaultSaliencyParams.html" class="code" title="func