You don't need to create 100 scenes to do this. You can create one scene with a published quad and from the sequencer create 100 take items each one pointing to a different image.
You will still need to link each one individually but it will probably be much faster as you don't need to create a scene, add a quad, create the material, etc..
From the sequencer you will have an Images tab where you can just click and choose the image you want assigned to that take item.
#XPression