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Hardware‐Based Non‐Photorealistic Rendering Using a Painting Robot
Author(s) -
Lindemeier Thomas,
Metzner Jens,
Pollak Lena,
Deussen Oliver
Publication year - 2015
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/cgf.12562
Subject(s) - painting , dither , rendering (computer graphics) , computer science , computer graphics (images) , artificial intelligence , robot , computer vision , non photorealistic rendering , inpainting , visual servoing , process (computing) , image (mathematics) , visual arts , art , animation , computer animation , computer facial animation , noise shaping , operating system
We describe a painting machine and associated algorithms. Our modified industrial robot works with visual feedback and applies acrylic paint from a repository to a canvas until the created painting resembles a given input image or scene. The color differences between canvas and input are used to direct the application of new strokes. We present two optimization‐based algorithms that place such strokes in relation to already existing ones. Using these methods we are able to create different painting styles, one that tries to match the input colors with almost transparent strokes and another one that creates dithering patterns of opaque strokes that approximate the input color. The machine produces paintings that mimic those created by human painters and allows us to study the painting process as well as the creation of artworks.