This is a c++ implementation of the paper Image Matting with Local and Nonlocal Smooth Priors by Xiaowu Chen et al.
Mathematically, the image I is a linear combination of F and B as the following: I=Fα+B(1-α). Here, the alpha matte α defines the opacity of each pixel and its value lies in [0,1]. Our goal is to estimate this α. In this paper, sampling and affinity matting are combined to solve this problem. Sampling-Based Matting estimates the alpha matte, foreground and background color of a pixel simultaneously. Affinity-Based Matting solves the alpha matte independent of the foreground and background colors which consists of local smooth prior and nonlocal smooth prior.
- build: make build
- run: ./main <input_image_in_pic> <input_trimap_in_pic> <output_image_in_results>
- System: Mac OS X / Windows VS2012
- Programming language: c++
- Actually, many results have artifacts(worse than this paper's results), such as
. Should think about the parameters or change a new implementation in some details.
- Date: 5-2016
- Author: criminalking