tv: Image display utilities package
- bpmedit: examine and edit bad pixel masks associated with images
- display: Load an image or image section into the display
- iis: IIS image display control package
- imedit: Examine and edit pixels in images
- imexamine: Examine images using image display, graphics, and text
- tvmark: Mark objects on the image display
- wcslab: Overlay a displayed image with a world coordinate grid