/** @file */
/* The MIT License
* 
* Copyright (c) 2008, Naotoshi Seo <sonots(at)sonots.com>
* 
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* 
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef CV_RAND_INCLUDED
#define CV_RAND_INCLUDED

#include "cv.h"
#include "cvaux.h"

/**
 * This function returns a Gaussian random variate, with mean zero and standard deviation sigma.
 *
 * @param rng cvRNG random state
 * @param sigma standard deviation
 * @return double
 */
CV_INLINE double cvRandGauss( CvRNG* rng, double sigma )
{
    CvMat* mat = cvCreateMat( 1, 1, CV_64FC1 );
    double var = 0;
    cvRandArr( rng, mat, CV_RAND_NORMAL, cvRealScalar(0), cvRealScalar(sigma) );
    var = cvmGet( mat, 0, 0 );
    cvReleaseMat( &mat );
    return var;
}
/*
rng.disttype = CV_RAND_NORMAL;
cvRandSetRange( &rng, 30, 100, -1 ); */


#endif