Ejemplo n.º 1
0
        private static Convolution2D GetRandomFilter_Positive(bool isSquare)
        {
            Random rand = StaticRandom.GetRandomForThread();

            var size = GetFilterSize(rand, isSquare);

            double[] values = Enumerable.Range(0, size.Item1 * size.Item2).
                              Select(o => rand.NextDouble()).
                              ToArray();

            values = Convolutions.ToUnit(values);

            return(new Convolution2D(values, size.Item1, size.Item2, false));
        }
Ejemplo n.º 2
0
        private static Convolution2D GetRandomFilter_PosNeg(bool isSquare)
        {
            Random rand = StaticRandom.GetRandomForThread();

            var size = GetFilterSize(rand, isSquare);

            double[] values = Enumerable.Range(0, size.Item1 * size.Item2).
                              Select(o => rand.NextDouble(-1, 1)).
                              ToArray();

            if (values.All(o => o > 0) || values.All(o => o < 0))
            {
                // They are all positive or all negative.  Flip one of them
                values[rand.Next(values.Length)] *= -1d;
            }

            values = Convolutions.ToUnit(values);

            return(new Convolution2D(values, size.Item1, size.Item2, true));
        }