Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Cheese - Cheese uses your webcam to take photos and videos, applies fancy special effects and lets you share...
GIMP - GIMP is a multiplatform photo manipulation tool.
Webcamoid - Webcamoid is a full featured webcam capture application.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Kamoso - Kamoso is a webcam recorder from KDE community.