- Not filtered by License - This option won't filter any license
- labeled for reuse - Under this option you will find images which has labeled for reuse.
- labeled for commercial reuse - This filtered images can be reuse only commercial purpose
- labeled for reuse with modification - This type of filtered images you can reuse and modify it for any purpose.
- labeled for commercial reuse with modification - Under this filtered images you can reuse commercial images with modification.
Slice/dice Google Image Searches by Usage Rights under "Search tools"