author = "Henz, Bernardo and Oliveira, Manuel M.",
          affiliation = "UFRGS and UFRGS",
                title = "Image Relighting Using Shading Proxies",
            booktitle = "Proceedings...",
                 year = "2015",
               editor = "Segundo, Maur{\'{\i}}cio Pamplona and Faria, Fabio Augusto",
         organization = "Conference on Graphics, Patterns and Images, 28. (SIBGRAPI)",
            publisher = "Sociedade Brasileira de Computa{\c{c}}{\~a}o",
              address = "Porto Alegre",
             keywords = "image relighting, painting relighting, normal-map estimation, 
                         shading transferring.",
             abstract = "We present a practical solution to the problem of single-image 
                         relighting of objects with arbitrary shapes. It is based on a 
                         shading-ratio image obtained from some user-provided guess of the 
                         original and target illuminations. Our approach is flexible and 
                         robust, being applicable to objects with non-uniform albedos and 
                         arbitrary shapes, as well as to non-photorrealistic depictions. We 
                         demonstrate its effectiveness by relighting many photographs, 
                         paintings, and drawings containing a variety of objects of 
                         different materials. Additionally, our technique can transfer 
                         smooth normal and depth maps from 3-D models to pictures. 
                         Preliminary evaluation has shown that our approach is intuitive, 
                         allowing novice users to relight images in just a couple of 
  conference-location = "Salvador",
      conference-year = "Aug. 26-29, 2015",
             language = "en",
                  ibi = "8JMKD3MGPBW34M/3JUSMJL",
                  url = "",
           targetfile = "wtd - camera ready_opt.pdf",
        urlaccessdate = "2021, Dec. 04"