static public int[] Get8DParametersFromNHWCParametersAndShape(TensorShape shape, int[] parameters, int defaultValue)
{
if (parameters.Length == TensorShape.MaxRank)
{
return(parameters);
}
Assert.AreEqual(4, parameters.Length);
Assert.IsTrue(shape.IsNHWC(), $"4D NCHW Parameters {parameters} can't be used with a tensor of shape {shape} as it contains other dimensions, please use 8D parameters for this shape.");
return(new int[] { defaultValue, defaultValue, parameters[0], defaultValue, defaultValue, parameters[1], parameters[2], parameters[3] });
}
static public int[] GetNHWCParametersFrom8DParameterAndShape(TensorShape shape, int[] parameters)
{
if (parameters.Length == 4)
{
return(parameters);
}
Assert.IsTrue(shape.IsNHWC(), $"Parameters {parameters} can't be converted to NCHW with a tensor of shape {shape} as it contains other dimensions.");
Assert.AreEqual(parameters.Length, TensorShape.MaxRank);
return(new int[] { parameters[TensorShape.DataBatch], parameters[TensorShape.H], parameters[TensorShape.W], parameters[TensorShape.C] });
}
static public int[] Get8DPermutationsForNHWCPermutationsAndShape(TensorShape shape, int[] permutations)
{
if (permutations.Length == TensorShape.MaxRank)
{
return(permutations);
}
Assert.AreEqual(4, permutations.Length);
Assert.IsTrue(shape.IsNHWC(), $"4D NCHW Permutation {permutations} can't be used with a tensor of shape {shape} as it contains other dimensions, please use an 8D permutation for this shape.");
int batchOldAxis = NHWCTo8DAxis(permutations[0]);
int heighOldAxis = NHWCTo8DAxis(permutations[1]);
int widthOldIndex = NHWCTo8DAxis(permutations[2]);
int channeOldIndex = NHWCTo8DAxis(permutations[3]);
return(new int[] { 0, 1, batchOldAxis, 3, 4, heighOldAxis, widthOldIndex, channeOldIndex });
}