MakeClassImage[label ]

makes a crossectional image of the classes label of a training dataset generated by GetTrainData MakeChannelImage[label,{b,n}] same but with explicit definition of background value b and number of classes n.

MakeClassImage[data,vox]

same but with the aspect ratio determined by vox. MakeChannelImage[label,{b,n},vox] same with explicit definition and aspect ratio definition.