Efeitos Visuais, uma Abordagem a Partir do Processamento Digital de Imagens

This article introduces the most important concepts of digital images and discusses how they are used to create visual effects. At the same time, it overviews various techniques of computer graphics and image processing for cinema and video. Visual effects production uses intensively geometrical modeling, computer visualization, digital image processing and, more recently, computer vision. The text is divided in five sections. After the introduction, the era of the optical visual effects is approached. In the third section, digital image is presented, when captured in film or in 1 Faculdade de Ciências Empresariais, Universidade FUMEC, Rua Cobre, 200, Cruzeiro – CEP 30310-190 – Belo Horizonte, MG {[email protected]} 2 Departamento de Ciência da Computação, UFMG, Av. Antonio Carlos 6627, Pampulha CEP 31270-901 Belo Horizonte MG