RGBN Image Editing
We propose a method to edit RGBNs (images with a color and a normal channel). High resolution RGBNs are easy to obtain using photometric stereo. Free editing will result in normals which do not correspond to any realizable surface. Our normal operators guarantee the integrability of the results. Our method can filter normals with any linear kernel allowing high-pass and edge-enhancement filters. We have designed a normal linear combination method for adding details with frequency control. New geometric features can be created with a custom brush that warps deformations along its path. A nonlinear operator is also proposed. Its integrability is controlled with a two-band separation of frequencies: smooth shape and details.
PaperSIBGRAPI 2009 .pdf, 2.3 MB
Thiago Pereira and Luiz Velho. "RGBN image editing". Editor IEEE Press, Proceedings of SIBGRAPI - XXII Brazilian Symposium on Computer Graphics and Image Processing, 2009. (to appear)