Bulk image upload as posts

I am rebuilding an old custom website as a Wordpress site. The old site has a folder of about 3200 images. I need each image inserted in a new post with the image title as the post title. The end result should be approx 3200 posts, each with a single image displayed full size, and the post title matching the image name. I'm sure there must be a way to simply automate this task !