منابع مشابه
Image Demosaicking with Contour Stencils
Demosaicking (or demosaicing) is the problem of interpolating full color information on an image where only one color component is known at each pixel. Most demosaicking methods involve some kind of estimation of the underlying image structure, for example, choosing adaptively between interpolating in the horizontal or vertical direction. This article discusses the implementation details of the...
متن کاملImage Interpolation with Contour Stencils
Image interpolation is the problem of increasing the resolution of an image. Linear methods must compromise between artifacts like jagged edges, blurring, and overshoot (halo) artifacts. More recent works consider nonlinear methods to improve interpolation of edges and textures. In this paper we apply contour stencils for estimating the image contours based on total variation along curves and t...
متن کاملImage Interpolation with Geometric Contour Stencils
We consider the image interpolation problem where, given an image v with uniformly-sampled pixels vm,n and point spread function h, the goal is to find a function u(x, y) satisfying vm,n = (h ∗ u)(m,n) for all m,n ∈ Z (1) so that u approximates the underlying function from which v was sampled. This article improves upon the IPOL article “Image Interpolation with Contour Stencils” [7]. In the pr...
متن کاملEdge Orientation Using Contour Stencils
Many image processing applications require estimating the orientation of the image edges. This estimation is often done with a finite difference approximation of the orthogonal gradient. As an alternative, we apply contour stencils, a method for detecting contours from total variation along curves, and show it more robustly estimates the edge orientations than several finite difference approxim...
متن کاملAn Effective Image Demosaicking Algorithm with Correlations among RGB Channels
In this paper, an effective image demosaicking algorithm, which is based on the correlation among the three primary colors, is proposed for mosaic image with Bayer color filter array (CFA). To reduce the distortion and improve the reconstruction quality, the proposed interpolation method makes full use of the brightness information and the edge information. We design several filters with size o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Image Processing On Line
سال: 2012
ISSN: 2105-1232
DOI: 10.5201/ipol.2012.g-dwcs