Image Analysis and Mathematical Morphology
Image Analysis and Mathematical Morphology
Extraction of Rectangular Boundaries from Aerial Image Data
ICCET '09 Proceedings of the 2009 International Conference on Computer Engineering and Technology - Volume 02
A general weighted median filter structure admitting negativeweights
IEEE Transactions on Signal Processing
Weighted median image sharpeners for the World Wide Web
IEEE Transactions on Image Processing
Quadratic Weighted Median Filters for Edge Enhancement of Noisy Images
IEEE Transactions on Image Processing
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One of the most common degradations in aerial images is their poor contrast and low resolution quality. This suggests the use of contrast enhancement methods as an attempt to modify the intensity distribution of the image. In this paper, a new edge detected morphological filter is proposed to sharpen aerial images. This is done by detecting the positions of the edges and then applying a class of morphological filtering. Motivated by the success of threshold decomposition, gradient-based operators are used to detect the locations of the edges. A morphological filter is used to sharpen these detected edges. Experimental results demonstrate that the detected edge deblurring filter improved the visibility and perceptibility of various embedded structures in aerial images. Moreover, the performance of the proposed filter is superior to that of other sharpener-type filters.