Step 1: Download latest iPod Photo to PC Transfer , and then install it. Skip this step if already done.
Step 2: Connect iPod to your PC.
Step 3: Launch iPod Transfer Photo and all the photos in your iPod will display automatically, screenshot as follows: 
Step 4: Select the photos to be transferred to your computer, the selected file will marked with red border. You can select photos by click on each one, or just drag a rectangle to select a bundle of photos. You can also select all photos by click right button of your mouse. Note: you can only select 6 photos if you haven't purchase the full version.
Step 5: Click "Copy" button to select output path and start to transfer photos to your computer: 
Options Setting
Click "Option" button to setting your back up features:
1.Backup Resolution: To select the photo size to be backup.
2.Backup File Format: To select backup photo file format, Tansee iPod Transfer Photo support BMP and JPG file now.
3.Backup Path: To select directory for storing the backup photos. You can select backup directory for each photo during backup by check "Ask Every Time" or store all files in a specified directory by checking "Save Here" and select the directory in the edit box.
4.Backup Full Resolution: To check this checkbox, if you have choose "include full-resolution photos" in iTunes when sync photos to iPod, you can get the full resolution photos when you transfer photos by Tansee iPod Transfer Photo.
FAQ - Frequent asked question
Can I Transfer Full resolution images to computer?
Answer: If you choose sync full resolution image when you using iTunes to sync iPod, You can get full resolution by iPod Transfer photo.
The Program Reading the Photos about 30 Seconds Freezes and on "Windows Task Manager", "not responding " Displayed. Why?
Answer: Apple developed several versions of iPod, each of them had several resolutions for photo displaying: full screen, thumbs... So, the photos stored in iPod isn't the original images, they are rearranged, when you have large number of photos, Tansee iPod Transfer Photo need some time to read the photo data in your iPod. Please wait for some minutes let the program read your iPod.
Can iPod Transfer Convert the .ithmb Files on My Hard Driver into JPEG or BMP?
Answer: Sure, Tansee iPod Transfer Photo can read .ithmb files: Copy your .ithmb files and the associated "Photo Database" to a disk (for example D:\) in structure as below: D:\Photos\Photo Database (Driver D: can be other one) D:\Photos\Thumbs\*.ithmb (All your ithmb files) Just as they are organized in iPod, then run Tansee iPod Transfer Photo, you can read and transfer them now.
Why can't I get the original resolution image, but a low quality instead?
Answer: Apple stores several resolutions for each picture for different displaying purposes: full screen, thumbs, photo list... So, the photos stored in iPod isn't the original images, they are rearranged. If you haven't choose "include full-resolution photos" in iTunes when sync photos to iPod, you can't get the full resolution. In other word, you can get full resolution if you choose "include full-resolution photos", Tansee ipod transfer Photo can get the full resolution in this condition.
If you want to transfer photos in your iPhone to PC, here is the iPhone photo to PC guide.