Unable To Sync / Import Edited Photos From IPhone 5s To PC

How can I import edited photos from iPhone 5S to PC (Windows 7)?" The key is that the photos taken on my iPhone have been edited on the iPhone. The original photo exists in "Photo Stream," and the edited photo exists in "Camera Roll."Â

When I import (synch, transfer, any synonym you prefer is fine with me) photos, they are written to two areas available on my PC:

Photostream images are at

ComputeriCloud PhotosMy Photo Stream

and Camera Roll (edited phots) are at

C:Users[my name]Pictures[synch-date]Â

The images shown in "C:Users[my name]Pictures[synch-date]" (the Camera Roll photos) are not as they were edited, however. I suspect that the iPhone "edits" images by applying a layer that manipulates the image without actually editing the file.Â

I have found so far that my best recourse is to import photos to my PC, edit them there in Photoshop (or other software), and then upload the images as I want them edited back to the iPhone. I would prefer to simply edit the pictures once on the iPhone and be able to import the edited files to my PC.

Info:
iPhone 5s, iOS 7.1.2, to PC with Windows 7