Currently Being ModeratedJul 14, 2012 9:24 PM (in response to daveandzoey)
There's no way to do this using iTunes, unless you used a very specific setting to sync the pictures to the iPod. To see this setting, select the iPod in the iTunes sidebar, under DEVICES. Over to the right, on the Photos tab, there is a checkbox that says Include full resolution photos. If that setting was previously checked when you synced those photos to the iPod, then you CAN retrieve them. On the Summary tab, check the checkbox for Enable disk use (if it's not already checked). Apply the change (if you changed that setting).
Using Windows or Finder on a Mac, open the iPod as a "disk." There is a folder named Photos, and inside that folder should be the full resolution image files of those photos.
If that Include full resolution photos checkbox was NOT checked, there will be nothing there you can use directly. There is only an image database with low-res images ("thumbnails") that fit the iPod's very small screen (and save iPod storage space). There may be third-party utilities that can extract the low resolution images from the iPod, but they would look very bad blown up to computer screen size.