Compositing And Matting In Images

Input images for arm extraction for the above and other examples are shown on the bottom row.

Compositing and matting in images. The intrinsic image approach weiss 2001 attempts to decompose a video of an object under different illumination conditions into a reflectance map and a sequence of light maps. The former requires filming in front of an expensive blue screen under carefully controlled lighting and the latter demands talent and intensive user interaction. Compositing non premultiplied version. In our photo editing application no 3d models are available.

Matting and compositing salvador dali couple with their heads full of clouds. Traditional approaches to matting include blue screen matting and rotoscoping. Assume an image is the over composite of a foreground and a background. All results are entirely image based.

Blend them into the composite in the right order motivationmotivation combining multiple images. We show that if the new background is known the matting algorithm has more freedom to create a successful matte. Search deals directly with shadow matting and compositing. Combining background and foreground matting and compositing in king kong 2005 compositing for titanic 1997.

Examples on compound compositing using multiple objects. C αf 1 α b in the premultiplied case omit the first α α f c b matting problem inverse problem. During compositing the extracted foreground elements are placed over novel background images. A bayesian approach to digital matting yung yu chuang 1 brian curless 1 david salesin 1 2 richard szeliski 2 1 university of washington 2 microsoft research abstract this paper proposes a new bayesian framework for solving the matting problem i e.

Image compositing compositing procedure 1. Extracting a foreground element from a background image by estimating an opacity for each pixel of the foreground element. Typically paste a foreground object onto a. Matting and compositing of transparent and refractive objects 3 fig.

Compositing is the process or technique of combining of visual elements from separate sources into single images often to create the illusion that all those elements are parts of the same scene live action shooting for compositing is variously called chroma key blue screen green screen and other names today most though not all compositing is achieved through digital image manipulation. Extract sprites e g using intelligent scissors in photoshop composite by david dewey 2. Matting compositing slides from bill freeman and alyosha efros. Previous algorithms for matting foreground elements have assumed that the new background for compositing is unknown.

Matting compositing many slides from freeman durand s computational photography course at mit. Some are from a efros at cmu. I even made a bunch of new ones motivation. Shadow matting and compositing.

Some from z yin from psu. Typically paste a foreground object onto a new background. Recent work in matting hole filling and compositing allows image elements to be mixed in a new composite image.