Proceedings ArticleDOI
Canny edge based image expansion
Hongjian Shi,Rabab K. Ward +1 more
- Vol. 1, pp 785-788
Reads0
Chats0
TLDR
A Canny edge-based image expansion method that outperforms the pixel replication, the bilinear interpolation and the bicubic interpolation methods and gives crisp and less zigzag pictures.Abstract:
In this paper, a Canny edge-based image expansion method is introduced. Our proposed expansion method outperforms the pixel replication, the bilinear interpolation and the bicubic interpolation methods. It gives crisp and less zigzag pictures. Our method is applied on the image after it has been expanded using bilinear or bicubic interpolation. The edges of such an expanded image are obtained using the Canny edge detector. The values of pixels around the edges are modified to yield a crisper and less zigzagged picture.read more
Citations
More filters
Journal ArticleDOI
Super-Resolution With Sparse Mixing Estimators
Stéphane Mallat,Guoshen Yu +1 more
TL;DR: A class of inverse problem estimators computed by mixing adaptively a family of linear estimators corresponding to different priors corresponding toDifferent priors are introduced, providing state-of-the-art numerical results.
Journal ArticleDOI
A New Orientation-Adaptive Interpolation Method
Qing Wang,Rabab K. Ward +1 more
TL;DR: It is shown that the curvature of the interpolated isophotes is reduced, and, thus, zigzagging artifacts are largely suppressed.
Journal ArticleDOI
A fast edge-oriented algorithm for image interpolation
TL;DR: Experimental results show that the subjective quality of the interpolated images is substantially improved by using the proposed algorithm compared with that of using conventional interpolation algorithms.
Journal ArticleDOI
Image Interpolation Via Regularized Local Linear Regression
TL;DR: An efficient image interpolation scheme by using regularized local linear regression (RLLR), which can efficiently handle the statistical outliers compared with ordinary least squares based methods and which outperform the existing methods in both objective and subjective visual quality.
Journal ArticleDOI
Efficient edge detection in digital images using a cellular neural network optimized by differential evolution algorithm
Alper Basturk,Enis Günay +1 more
TL;DR: Simulation results indicate that the proposed CNN operator outperforms competing edge detectors and offers superior performance in edge detection in digital images.
References
More filters
Journal ArticleDOI
A Computational Approach to Edge Detection
TL;DR: There is a natural uncertainty principle between detection and localization performance, which are the two main goals, and with this principle a single operator shape is derived which is optimal at any scale.
Journal ArticleDOI
New edge-directed interpolation
Xin Li,Michael T. Orchard +1 more
TL;DR: Simulation results demonstrate that the new interpolation algorithm substantially improves the subjective quality of the interpolated images over conventional linear interpolation.
Journal ArticleDOI
Comparison of Interpolating Methods for Image Resampling
TL;DR: In this paper, the authors compared the performance of linear and cubic B-spline interpolation, linear interpolation and high-resolution cubic spline with edge enhancement with respect to the initial coordinate system.
Journal ArticleDOI
Subpixel edge localization and the interpolation of still images
K. Jensen,D. Anastassiou +1 more
TL;DR: The algorithm is based on a source model emphasizing the visual integrity of detected edges and incorporates a novel edge fitting operator that has been developed for this application, and produces an image of increased resolution with noticeably sharper edges and lower mean-squared reconstruction error than that produced by linear techniques.
Proceedings ArticleDOI
Edge-directed interpolation
Jan P. Allebach,Ping Wah Wong +1 more
TL;DR: A new method for digitally interpolating images to higher resolution based on bilinear interpolation modified to prevent interpolation across edges, as determined from the estimated high resolution edge map is presented.
Related Papers (5)
An edge-guided image interpolation algorithm via directional filtering and data fusion
Lei Zhang,Xiaolin Wu +1 more