AutoSplitter - Scan multiple photos then split, crop and straighten them automatically. Place as many photos on your flatbed scanner as you can fit and scan - this software will automatically detect individual photos from the scan and will divide the image.
NAPS2 - NAPS2 is a document scanning application with a focus on simplicity and ease of use.
digiKam - Professional Photo Management with the Power of Open Source
Scanitto Pro - Scanitto Pro is a simple and easy to use scanned imaging software. You can easily save the scanned images from your imaging device through this program to varying document styles and file types. Read more about Scanitto Pro.
BatchCrop - Crop, resize and modify images easily.
VueScan - Third-party software for film scanners and flatbed scanners.