Without this, colmap will use up all available resources. This results in the system freezing due to no resources available. Adding this argument caps the resources and allows the system to function as normal.

Before you had to specify the path with "transform.json" at the end, else the script went in error. Now "transform.json" will be appended to the path resulting in it being created without specifying it every time.

All path locations are handled to put the transforms.json in the right location and populate the frames-object with the right image file_path. Also wrapped them is a os.normpath to ensure cross platform functionallity. This might not be necesarry but is a good assurance.