I try to implement all features that are available from the command line. But not everything has been added yet. It seems that the interpolate setting is not available. I will create an issue to make this available. It also seems that -fx operator can work on multiple images. MagickImageCollection does not support that as this moment. I will create another issue for that.
To end with some good news I added a small example below that does the first part of your command.
To end with some good news I added a small example below that does the first part of your command.
// ( xc:red xc:blue +append )using (MagickImageCollection images = new MagickImageCollection()) { images.Add(new MagickImage("xc:red")); images.Add(new MagickImage("xc:blue")); MagickImage result = images.AppendHorizontally(); // +append//MagickImage result = images.AppendVertically(); // -append }