QtCAM is e-con's open source Linux webcam software. This Qt Ubuntu camera software application provides easier user interface for capturing and viewing video from devices supported by Linux UVC driver. It would also work with any V4L2 compatible device.
Cheese - Cheese uses your webcam to take photos and videos, applies fancy special effects and lets you share...
Kamoso - Kamoso is a webcam recorder from KDE community.
MyCam - Record videos and take pictures with your webcam, open image or video files and apply with amazing photo filters and video effects.
Webcamoid - Webcamoid is a full featured webcam capture application.
Cameroid - Just like Photo Booth - exept is online. Have fun with your webcam. Apply text and funny effects.
Phoyo - Phoyo is a photo booth automation software.