protected virtual void InitBilinear(NDArray array)
{
var shape = new Shape(array.GetShape());
var size = (int)shape.Size;
var weight = new float[size];
var f = Math.Ceiling(shape[3] / 2.0f);
var c = (2 * f - 1 - f % 2) / (2.0 * f);
for (var i = 0; i < size; ++i)
{
var x = i % shape[3];
var y = (i / shape[3]) % shape[2];
weight[i] = (float)((1 - Math.Abs(x / f - c)) * (1 - Math.Abs(y / f - c)));
}
array.SyncCopyFromCPU(weight);
}
