An automated costume augmentation system includes a computing platform having a hardware processor and a system memory storing a software code. The hardware processor executes the software code to provide an image including a posed figure to an artificial neural network (ANN), receive from the ANN a 2D skeleton data including joint positions corresponding to the posed figure, and determine a 3D pose corresponding to the posed figure using an optimization algorithm applied to the skeleton data. The software code further identifies one or more proportion(s) of the posed figure based on the skeleton data, determines bone directions corresponding to the posed figure using another optimization algorithm applied to the 3D pose, parameterizes a costume for the posed figure based on the 3D pose, the proportion(s), and the bone directions, and outputs an enhanced image including the posed figure augmented with the fitted costume for rendering on a display.