If you are using iTunes 11 - from the menu at the top go to View>Show Sidebar so that you will be able to see the iPad under the devices heading.
Connect the iPad to the computer and launch iTunes.
Click on the iPad name on the left side under devices.
Click on the Photos Tab on the right.
Click on only the photos or folders of photos that you want to sync under the Sync Photos From heading.
Uncheck the photos or folders that you do not want to sync.
Click on the Sync Photos From Heading in order to select it.
Click on Apply in the lower right corner of iTunes