Visualization of density maps not possible?

[JavierUrenaPhDProjects]

So Im trying to create visualization of the density maps from images. I guess the way the script is programmed is to feed it one singular image. But in line 78 of vis_densityMap the script is trying to find for the numpy file associated to the image, that would represent what I guess the array in numpy form that represent the density map. But where does these files come from? It looks in a folder called "density_maps_constant15" but there is no such folder, nor it is created in other script of the project, so I dont really know what is doing here.

Also, I would recommend to upload the pre-trained weights into a different platform other than Baidu-disk.