Meshroom cameras, with images, into Blender

ms_abc_cams.py

import bpy
from pathlib import Path

#selo = bpy.context.selected_objects
#assert len(selo) > 0, "Need to select the camera root"
#mroot = selo[0]
#assert mroot.name == "mvgRoot"

mroot = bpy.data.objects['mvgRoot']
image_folder = Path("D:\\art\\photo\\2022.6\\16")
cams = mroot.children[0].children
print("Start...")
for c in cams:
    cam = bpy.data.cameras["camera_" + c.name]
    cam.show_background_images = True
    cam.display_size = 0.3
    if len(cam.background_images) == 0:
        cam.background_images.new()
    
    # Assume: second to last string is image name (without .jpg)
    fname = image_folder / (c.name.split('_')[-2] + ".jpg")
    print(fname)
    assert fname.is_file(), "Could not find image to load"
    
    rimg = bpy.data.images.load(str(fname.absolute()), check_existing=True)
    cam.background_images[0].image = rimg
    cam.background_images[0].alpha = 0.4
    cam.background_images[0].frame_method = "CROP"