In this paper, we propose a fourth order PDE model for image inpainting based on a variant of the famous Mumford-Shah (MS) image segmentation model. Convexity splitting is used to discrtised the time and we replace the Laplacian by its fractional counterpart in the time discretised scheme. Fourier spectral method is used for space discretization. Consistency, stability and convergence of the time discretised model has been carried out. The model is tested on some standard test images and compared them with the result of some models existed in the literature.
翻译:在本文中,我们根据著名的Mumford-Shah(MS)图像分解模型的变体,提出了第四级PDE图像涂色模型。使用分解法对时间进行分解,用分解法以分解法取代拉普拉西亚,用四倍光谱法进行空间分解。采用了时间分解模型的一致性、稳定性和趋同性。该模型在一些标准测试图像上进行了测试,并将其与文献中存在的一些模型的结果进行比较。